What is the cheapest airline that flies from Washington, D.C. Dulles Intl to Ontario?

Delta, Porter Airlines, and United Airlines are the most popular carriers operating from Washington, D.C. Dulles Intl to Ontario

Which airlines fly to Region of Ontario?

Porter Airlines, Air Canada and United Airlines are the top three most popular airlines that fly to Region of Ontario from Washington, D.C. Dulles Intl Airport according to our data. Porter Airlines is the first choice among our users, with 50% of people opting to fly with this airline when travelling to Region of Ontario. Keep in mind that there are 3 different airlines that fly to Region of Ontario on a routine basis, so you have a few additional options to choose from.

How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Ontario?

As of October 2026, there are 3 operators available to choose from for flights from Washington, D.C. Dulles Intl Airport to Ontario.

How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Ontario?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. Dulles Intl Airport to Ontario.

What documentation or ID do you need to fly to Ontario?

The travel and health documents required for your trip to Ontario can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

C$ 125 Cheap Flights from Washington, D.C. Dulles Intl Airport to Region of Ontario in 2026/27

Q: How many flights depart from Washington, D.C. Dulles Intl Airport to Region of Ontario on average per day?

The number of flights available between Washington, D.C. Dulles Intl Airport and Region of Ontario is 16 per day as of October 2026. The most frequent departure time is 5:00p.m., with 54% of daily flights leaving in the afternoon.

Q: How many flights depart from Washington, D.C. Dulles Intl Airport to Region of Ontario on average per week?

113 flights are operational weekly from Washington, D.C. Dulles Intl Airport to Region of Ontario as of October 2026. The most popular departure day for this route is Wed, with 25% of flights per week taking off on this day.

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Ontario

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:20 a.m. - 12:52 p.m.IAD Washington, D.C. Dulles Intl-YTZ Toronto Island

1h 32mdirect

9:10 a.m. - 10:38 a.m.YTZ Toronto Island-IAD Washington, D.C. Dulles Intl

1h 28mdirect

C$ 278Porter Airlines

Fri, 22 Jan - Sun, 24 Jan

11:20 a.m. - 12:50 p.m.IAD Washington, D.C. Dulles Intl-YTZ Toronto Island

1h 30mdirect

9:10 a.m. - 10:39 a.m.YTZ Toronto Island-IAD Washington, D.C. Dulles Intl

1h 29mdirect

C$ 278Multiple Airlines

Wed, 18 Nov - Wed, 25 Nov

11:20 a.m. - 12:50 p.m.IAD Washington, D.C. Dulles Intl-YTZ Toronto Island

1h 30mdirect

9:10 a.m. - 10:39 a.m.YTZ Toronto Island-IAD Washington, D.C. Dulles Intl

1h 29mdirect

C$ 281Multiple Airlines

Fri, 20 Nov - Sat, 21 Nov

11:20 a.m. - 12:50 p.m.IAD Washington, D.C. Dulles Intl-YTZ Toronto Island

1h 30mdirect

9:10 a.m. - 10:39 a.m.YTZ Toronto Island-IAD Washington, D.C. Dulles Intl

1h 29mdirect

C$ 281Multiple Airlines

Thu, 12 Nov - Sun, 15 Nov

9:55 a.m. - 11:22 a.m.IAD Washington, D.C. Dulles Intl-YYZ Toronto Pearson Intl

1h 27mdirect

2:15 p.m. - 3:45 p.m.YYZ Toronto Pearson Intl-IAD Washington, D.C. Dulles Intl

1h 30mdirect

C$ 284Air Canada

Sat, 7 Nov - Thu, 19 Nov

9:55 a.m. - 11:22 a.m.IAD Washington, D.C. Dulles Intl-YYZ Toronto Pearson Intl

1h 27mdirect

6:40 p.m. - 8:10 p.m.YYZ Toronto Pearson Intl-IAD Washington, D.C. Dulles Intl

1h 30mdirect

C$ 284Air Canada

Wed, 11 Nov - Tue, 17 Nov

10:10 p.m. - 11:52 p.m.IAD Washington, D.C. Dulles Intl-YYZ Toronto Pearson Intl

1h 42mdirect

10:00 a.m. - 11:45 a.m.YYZ Toronto Pearson Intl-IAD Washington, D.C. Dulles Intl

1h 45mdirect

C$ 284United Airlines

Thu, 5 Nov - Tue, 10 Nov

12:39 p.m. - 2:25 p.m.IAD Washington, D.C. Dulles Intl-YYZ Toronto Pearson Intl

1h 46mdirect

10:00 a.m. - 11:45 a.m.YYZ Toronto Pearson Intl-IAD Washington, D.C. Dulles Intl

1h 45mdirect

C$ 284United Airlines

Tue, 24 Nov - Sat, 28 Nov

11:20 a.m. - 12:50 p.m.IAD Washington, D.C. Dulles Intl-YTZ Toronto Island

1h 30mdirect

9:10 a.m. - 10:39 a.m.YTZ Toronto Island-IAD Washington, D.C. Dulles Intl

1h 29mdirect

C$ 284Porter Airlines

Mon, 2 Nov - Fri, 27 Nov

11:20 a.m. - 12:52 p.m.IAD Washington, D.C. Dulles Intl-YTZ Toronto Island

1h 32mdirect

9:10 a.m. - 10:38 a.m.YTZ Toronto Island-IAD Washington, D.C. Dulles Intl

1h 28mdirect

C$ 284Porter Airlines

Fri, 5 Mar - Sun, 7 Mar

Cheap last-minute flights

Enter your travel dates to find the best prices.

11:20 a.m. - 12:52 p.m.IAD Washington, D.C. Dulles Intl-YTZ Toronto Island

1h 32mdirect

9:10 a.m. - 10:38 a.m.YTZ Toronto Island-IAD Washington, D.C. Dulles Intl

1h 28mdirect

C$ 312Porter Airlines

Wed, 28 Oct - Sat, 31 Oct

11:20 a.m. - 12:52 p.m.IAD Washington, D.C. Dulles Intl-YTZ Toronto Island

1h 32mdirect

9:10 a.m. - 10:39 a.m.YTZ Toronto Island-IAD Washington, D.C. Dulles Intl

1h 29mdirect

C$ 360Porter Airlines

Tue, 27 Oct - Tue, 3 Nov

11:20 a.m. - 12:52 p.m.IAD Washington, D.C. Dulles Intl-YTZ Toronto Island

1h 32mdirect

4:15 p.m. - 5:44 p.m.YTZ Toronto Island-IAD Washington, D.C. Dulles Intl

1h 29mdirect

C$ 458Porter Airlines

Wed, 28 Oct - Mon, 9 Nov

9:55 a.m. - 3:56 p.m.IAD Washington, D.C. Dulles Intl-YTZ Toronto Island

6h 01m1 stop Montreal Pierre Elliott Trudeau Intl

3:20 p.m. - 4:47 p.m.YTZ Toronto Island-IAD Washington, D.C. Dulles Intl

1h 27mdirect

C$ 534Air Canada

Tue, 27 Oct - Tue, 3 Nov

10:57 a.m. - 5:19 p.m.IAD Washington, D.C. Dulles Intl-YYZ Toronto Pearson Intl

6h 22m1 stop Detroit Metropolitan Wayne County

9:40 a.m. - 4:28 p.m.YYZ Toronto Pearson Intl-IAD Washington, D.C. Dulles Intl

6h 48m1 stop Detroit Metropolitan Wayne County

C$ 550Delta

Tue, 27 Oct - Tue, 3 Nov

3:45 p.m. - 9:30 p.m.IAD Washington, D.C. Dulles Intl-YTZ Toronto Island

5h 45m1 stop Montreal Pierre Elliott Trudeau Intl

3:20 p.m. - 4:47 p.m.YTZ Toronto Island-IAD Washington, D.C. Dulles Intl

1h 27mdirect

C$ 555Air Canada

Sat, 24 Oct - Wed, 18 Nov

4:30 p.m. - 5:57 p.m.IAD Washington, D.C. Dulles Intl-YYZ Toronto Pearson Intl

1h 27mdirect

2:15 p.m. - 3:45 p.m.YYZ Toronto Pearson Intl-IAD Washington, D.C. Dulles Intl

1h 30mdirect

C$ 573Air Canada

Mon, 26 Oct - Thu, 26 Nov

6:05 a.m. - 11:19 a.m.IAD Washington, D.C. Dulles Intl-YYZ Toronto Pearson Intl

5h 14m1 stop Detroit Metropolitan Wayne County

6:10 p.m. - 11:16 p.m.YYZ Toronto Pearson Intl-IAD Washington, D.C. Dulles Intl

5h 06m1 stop Detroit Metropolitan Wayne County

C$ 609Delta

Tue, 27 Oct - Mon, 2 Nov

5:15 p.m. - 7:01 p.m.IAD Washington, D.C. Dulles Intl-YYZ Toronto Pearson Intl

1h 46mdirect

2:45 p.m. - 4:24 p.m.YYZ Toronto Pearson Intl-IAD Washington, D.C. Dulles Intl

1h 39mdirect

C$ 694United Airlines

Tue, 27 Oct - Wed, 4 Nov

5:15 p.m. - 7:01 p.m.IAD Washington, D.C. Dulles Intl-YYZ Toronto Pearson Intl

1h 46mdirect

10:00 a.m. - 11:45 a.m.YYZ Toronto Pearson Intl-IAD Washington, D.C. Dulles Intl

1h 45mdirect

C$ 694United Airlines

Tue, 27 Oct - Tue, 3 Nov

Cheap direct flights

Enter your travel dates to find the best prices.

11:20 a.m. - 12:52 p.m.IAD Washington, D.C. Dulles Intl-YTZ Toronto Island

1h 32mdirect

9:10 a.m. - 10:38 a.m.YTZ Toronto Island-IAD Washington, D.C. Dulles Intl

1h 28mdirect

C$ 278Porter Airlines

Fri, 22 Jan - Sun, 24 Jan

11:20 a.m. - 12:50 p.m.IAD Washington, D.C. Dulles Intl-YTZ Toronto Island

1h 30mdirect

9:10 a.m. - 10:39 a.m.YTZ Toronto Island-IAD Washington, D.C. Dulles Intl

1h 29mdirect

C$ 278Multiple Airlines

Wed, 18 Nov - Wed, 25 Nov

11:20 a.m. - 12:50 p.m.IAD Washington, D.C. Dulles Intl-YTZ Toronto Island

1h 30mdirect

9:10 a.m. - 10:39 a.m.YTZ Toronto Island-IAD Washington, D.C. Dulles Intl

1h 29mdirect

C$ 281Multiple Airlines

Fri, 20 Nov - Sat, 21 Nov

11:20 a.m. - 12:50 p.m.IAD Washington, D.C. Dulles Intl-YTZ Toronto Island

1h 30mdirect

9:10 a.m. - 10:39 a.m.YTZ Toronto Island-IAD Washington, D.C. Dulles Intl

1h 29mdirect

C$ 281Multiple Airlines

Thu, 12 Nov - Sun, 15 Nov

9:55 a.m. - 11:22 a.m.IAD Washington, D.C. Dulles Intl-YYZ Toronto Pearson Intl

1h 27mdirect

2:15 p.m. - 3:45 p.m.YYZ Toronto Pearson Intl-IAD Washington, D.C. Dulles Intl

1h 30mdirect

C$ 284Air Canada

Sat, 7 Nov - Thu, 19 Nov

9:55 a.m. - 11:22 a.m.IAD Washington, D.C. Dulles Intl-YYZ Toronto Pearson Intl

1h 27mdirect

6:40 p.m. - 8:10 p.m.YYZ Toronto Pearson Intl-IAD Washington, D.C. Dulles Intl

1h 30mdirect

C$ 284Air Canada

Wed, 11 Nov - Tue, 17 Nov

10:10 p.m. - 11:52 p.m.IAD Washington, D.C. Dulles Intl-YYZ Toronto Pearson Intl

1h 42mdirect

10:00 a.m. - 11:45 a.m.YYZ Toronto Pearson Intl-IAD Washington, D.C. Dulles Intl

1h 45mdirect

C$ 284United Airlines

Thu, 5 Nov - Tue, 10 Nov

12:39 p.m. - 2:25 p.m.IAD Washington, D.C. Dulles Intl-YYZ Toronto Pearson Intl

1h 46mdirect

10:00 a.m. - 11:45 a.m.YYZ Toronto Pearson Intl-IAD Washington, D.C. Dulles Intl

1h 45mdirect

C$ 284United Airlines

Tue, 24 Nov - Sat, 28 Nov

11:20 a.m. - 12:50 p.m.IAD Washington, D.C. Dulles Intl-YTZ Toronto Island

1h 30mdirect

9:10 a.m. - 10:39 a.m.YTZ Toronto Island-IAD Washington, D.C. Dulles Intl

1h 29mdirect

C$ 284Porter Airlines

Mon, 2 Nov - Fri, 27 Nov

11:20 a.m. - 12:52 p.m.IAD Washington, D.C. Dulles Intl-YTZ Toronto Island

1h 32mdirect

9:10 a.m. - 10:38 a.m.YTZ Toronto Island-IAD Washington, D.C. Dulles Intl

1h 28mdirect

C$ 284Porter Airlines

Fri, 5 Mar - Sun, 7 Mar

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Early arrival? Instantly customize your results

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Air Canada flights from Washington, D.C. Dulles Intl Airport to Region of Ontario

Our best Air Canada deals on Washington, D.C. Dulles Intl Airport to Region of Ontario flight tickets

Air Canada

18 Nov

IAD9:55 a.m.Washington, D.C. Dulles Intl

1h 27m

YYZ11:22 a.m.Toronto Pearson Intl

25 Nov

YYZ1:00 p.m.Toronto Pearson Intl

7h 23m

1 stop

IAD8:23 p.m.Washington, D.C. Dulles Intl

C$ 304

Air Canada

27 Jan

IAD9:55 a.m.Washington, D.C. Dulles Intl

4h 50m

1 stop

YYZ2:45 p.m.Toronto Pearson Intl

6 Feb

YYZ4:00 p.m.Toronto Pearson Intl

4h 23m

1 stop

IAD8:23 p.m.Washington, D.C. Dulles Intl

C$ 308

Air Canada

4 Nov

IAD9:55 a.m.Washington, D.C. Dulles Intl

1h 27m

YYZ11:22 a.m.Toronto Pearson Intl

11 Nov

YYZ6:40 p.m.Toronto Pearson Intl

1h 30m

IAD8:10 p.m.Washington, D.C. Dulles Intl

C$ 311

Delta flights from Washington, D.C. Dulles Intl Airport to Region of Ontario

Our best Delta deals on Washington, D.C. Dulles Intl Airport to Region of Ontario flight tickets

Delta

12 Nov

IAD6:00 a.m.Washington, D.C. Dulles Intl

7h 30m

1 stop

YYZ1:30 p.m.Toronto Pearson Intl

17 Nov

YYZ12:15 p.m.Toronto Pearson Intl

4h 11m

1 stop

IAD4:26 p.m.Washington, D.C. Dulles Intl

C$ 332

Delta

14 Nov

IAD5:13 p.m.Washington, D.C. Dulles Intl

5h 44m

1 stop

YYZ10:57 p.m.Toronto Pearson Intl

17 Nov

YYZ6:10 p.m.Toronto Pearson Intl

5h 11m

1 stop

IAD11:21 p.m.Washington, D.C. Dulles Intl

C$ 377

Delta

3 Nov

IAD6:32 p.m.Washington, D.C. Dulles Intl

4h 57m

1 stop

YYZ11:29 p.m.Toronto Pearson Intl

10 Nov

YYZ6:10 p.m.Toronto Pearson Intl

5h 11m

1 stop

IAD11:21 p.m.Washington, D.C. Dulles Intl

C$ 409

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Toronto

IAD Washington, D.C. Dulles Intl - YTZ Toronto Island

IADYTZ

Washington, D.C. Dulles Intl

Fri 22/1

11:20 a.m.-12:52 p.m.

Nonstop1h 32m

Toronto Island

Sun 24/1

9:10 a.m.-10:38 a.m.

Nonstop1h 28m

C$ 278

Washington, D.C.Toronto

IAD Washington, D.C. Dulles Intl - YTZ Toronto Island

IADYTZ

Washington, D.C. Dulles Intl

Wed 18/11

11:20 a.m.-12:50 p.m.

Nonstop1h 30m

Toronto Island

Wed 25/11

9:10 a.m.-10:39 a.m.

Nonstop1h 29m

C$ 278

Washington, D.C.Toronto

IAD Washington, D.C. Dulles Intl - YTZ Toronto Island

IADYTZ

Washington, D.C. Dulles Intl

Fri 20/11

11:20 a.m.-12:50 p.m.

Nonstop1h 30m

Toronto Island

Sat 21/11

9:10 a.m.-10:39 a.m.

Nonstop1h 29m

C$ 281

Washington, D.C.Toronto

IAD Washington, D.C. Dulles Intl - YTZ Toronto Island

IADYTZ

Washington, D.C. Dulles Intl

Thu 12/11

11:20 a.m.-12:50 p.m.

Nonstop1h 30m

Toronto Island

Sun 15/11

9:10 a.m.-10:39 a.m.

Nonstop1h 29m

C$ 281

Quickest round-trip

Washington, D.C.Toronto

IAD Washington, D.C. Dulles Intl - YYZ Toronto Pearson Intl

IADYYZ

Washington, D.C. Dulles Intl

Sat 7/11

9:55 a.m.-11:22 a.m.

Nonstop1h 27m

Toronto Pearson Intl

Thu 19/11

2:15 p.m.-3:45 p.m.

Nonstop1h 30m

C$ 284

Washington, D.C.Toronto

IAD Washington, D.C. Dulles Intl - YYZ Toronto Pearson Intl

IADYYZ

Washington, D.C. Dulles Intl

Wed 11/11

9:55 a.m.-11:22 a.m.

Nonstop1h 27m

Toronto Pearson Intl

Tue 17/11

6:40 p.m.-8:10 p.m.

Nonstop1h 30m

C$ 284

Washington, D.C.Toronto

IAD Washington, D.C. Dulles Intl - YYZ Toronto Pearson Intl

IADYYZ

Washington, D.C. Dulles Intl

Thu 5/11

10:10 p.m.-11:52 p.m.

Nonstop1h 42m

Toronto Pearson Intl

Tue 10/11

10:00 a.m.-11:45 a.m.

Nonstop1h 45m

C$ 284

Washington, D.C.Toronto

IAD Washington, D.C. Dulles Intl - YYZ Toronto Pearson Intl

IADYYZ

Washington, D.C. Dulles Intl

Tue 24/11

12:39 p.m.-2:25 p.m.

Nonstop1h 46m

Toronto Pearson Intl

Sat 28/11

10:00 a.m.-11:45 a.m.

Nonstop1h 45m

C$ 284

Washington, D.C.Toronto

IAD Washington, D.C. Dulles Intl - YTZ Toronto Island

IADYTZ

Washington, D.C. Dulles Intl

Mon 2/11

11:20 a.m.-12:50 p.m.

Nonstop1h 30m

Toronto Island

Fri 27/11

9:10 a.m.-10:39 a.m.

Nonstop1h 29m

C$ 284

Washington, D.C.Toronto

IAD Washington, D.C. Dulles Intl - YTZ Toronto Island

IADYTZ

Washington, D.C. Dulles Intl

Fri 5/3

11:20 a.m.-12:52 p.m.

Nonstop1h 32m

Toronto Island

Sun 7/3

9:10 a.m.-10:38 a.m.

Nonstop1h 28m

C$ 284

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Region of Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Region of Ontario?

In general, December is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Region of Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 440. If you are unable to visit Region of Ontario during the month of December, then departing from Washington, D.C. Dulles Intl Airport during the month January is also very affordable. Most momondo users find prices during this month for around C$ 447.

What is the cheapest day to depart on your flight to Region of Ontario?

The cheapest day to depart from Washington, D.C. Dulles Intl Airport to Region of Ontario is on a Monday. Travellers who choose to depart for Region of Ontario on a Monday will often find tickets for as low as C$ 398. The most expensive day to fly to Region of Ontario is Thursday, with ticket prices averaging around C$ 518.

What is the cheapest time of day to depart on your flight to Region of Ontario?

Our most recent data shows that the best time of day to fly to Region of Ontario is in the afternoon. Flights from Washington, D.C. Dulles Intl Airport to Region of Ontario during this time can be as low as C$ 421. If you have a flexible travel schedule, then try to avoid flying at noon when prices are C$ 610 on average. Flights to Region of Ontario from Washington, D.C. Dulles Intl Airport at noon are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Washington, D.C. Dulles Intl to Ontario flight route?

Fly from Washington, D.C. Dulles Intl to Toronto Pearson Intl for the best Washington, D.C. Dulles Intl - Ontario flight prices

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Ontario?

You are more likely to see cheaper flights to Region of Ontario from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Region of Ontario for around C$ 530 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Region of Ontario from Washington, D.C. Dulles Intl Airport for as low as C$ 415 on momondo.

What cabin class options are available on Washington, D.C. Dulles Intl Airport to Region of Ontario flights?

There are 2 cabin classes available to choose from on Washington, D.C. Dulles Intl Airport to Region of Ontario flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Washington, D.C. Dulles Intl Airport to Region of Ontario flights?

No. A direct flight is the cheapest option for a flight between Washington, D.C. Dulles Intl Airport to Region of Ontario.

Cheap Washington, D.C. Dulles Intl Airport to Region of Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Region of Ontario

Best price found	C$ 125
Fastest flight time	1h 27m
Direct flights	Every day
Airports in Region of Ontario	125 airports

The best one-way flight to Region of Ontario from Washington, D.C. Dulles Intl Airport in the past 72 hours is C$ 125. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Region of Ontario found on momondo in the last 72 hours is C$ 278.

The fastest flight from Washington, D.C. Dulles Intl Airport to Region of Ontario takes 1h 27m

Direct flights go from Washington, D.C. Dulles Intl Airport to Region of Ontario every day.

There are 125 airports in Region of Ontario. From Washington, D.C. Dulles Intl Airport there are direct flights to Toronto Pearson Intl (YYZ), Toronto Island (YTZ).

Search flight deals

Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Ontario

When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Ontario?
Prices for flights from Washington, D.C. Dulles Intl Airport to Ontario refresh daily.
How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Ontario?
As of October 2026, there are 3 operators available to choose from for flights from Washington, D.C. Dulles Intl Airport to Ontario.
How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Ontario?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. Dulles Intl Airport to Ontario.
What documentation or ID do you need to fly to Ontario?
The travel and health documents required for your trip to Ontario can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Washington, D.C. Dulles Intl Airport to Region of Ontario?
momondo data reveals that the most frequently booked plane model on the route from Washington, D.C. Dulles Intl Airport to Region of Ontario is De Havilland (Bombardier) DHC-8-400 Dash 8Q, representing 39.84% of all bookings. The subsequent popular models are Embraer 175 (Enhanced Winglets) at 19.51%, Embraer 175 at 14.05%, and Canadair (Bombardier) Regional Jet 900 at 8.95%.

Best airlines flying from Washington, D.C. Dulles Intl Airport to Region of Ontario

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Region of Ontario with momondo

Airline	Rating	Free Cancellation	Price
Porter Airlines	PriceFrom C$ 287	Free Cancellation	Rating 8.0 467 reviews	Search Porter Airlines flights
United Airlines	PriceFrom C$ 302	Free Cancellation	Rating 7.3 10,404 reviews	Search United Airlines flights
Air Canada	PriceFrom C$ 392	Free Cancellation	Rating 7.1 11,794 reviews	Search Air Canada flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Ontario?

Finding the right flight to Ontario from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognizable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Ontario quick and easy, saving you time and money.

Can I find flights from Washington, D.C. to Ontario with flexible booking policies on momondo?

All flight searches from Washington, D.C. to Ontario on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Ontario?

momondo helps you find the best flight between Washington, D.C. and Ontario by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Washington, D.C. to Ontario right now. Can momondo alert me if prices change?

Price alerts on flights to Ontario from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Region of Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Sat 21/11

Sat 28/11

Email me momondo's favourite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Ontario

Popular cities

Other flights from Washington, D.C. Dulles Intl Airport

Other flights to Ontario

Airlines

Complete your trip

Feeling lucky

Popular Cities in Ontario

Flights to Torontofrom C$ 173

Flights to Vancouverfrom C$ 105

Flights to Calgaryfrom C$ 122

Flights to Montrealfrom C$ 260

Flights to Halifaxfrom C$ 171

Flights to Winnipegfrom C$ 167

Flights to Ottawafrom C$ 299

Flights to Kelownafrom C$ 148

Flights to Saskatoonfrom C$ 260

Flights to St. John'sfrom C$ 288

Flights to Reginafrom C$ 308

Flights to Vancouverfrom C$ 104

Cheap flights from Washington, D.C. Dulles Intl Airport to Ontario from C$ 125

Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Ontario

Cheap round-trip flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Air Canada flights from Washington, D.C. Dulles Intl Airport to Region of Ontario

Our best Air Canada deals on Washington, D.C. Dulles Intl Airport to Region of Ontario flight tickets

Delta flights from Washington, D.C. Dulles Intl Airport to Region of Ontario

Our best Delta deals on Washington, D.C. Dulles Intl Airport to Region of Ontario flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Ontario that are best for you.

See travel insights to Ontario from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Region of Ontario

What is the cheapest month to fly to Region of Ontario?

What is the cheapest day to depart on your flight to Region of Ontario?

What is the cheapest time of day to depart on your flight to Region of Ontario?

What is the cheapest Washington, D.C. Dulles Intl to Ontario flight route?

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Ontario?

What cabin class options are available on Washington, D.C. Dulles Intl Airport to Region of Ontario flights?

Can stopping save me money on Washington, D.C. Dulles Intl Airport to Region of Ontario flights?

What is the cheapest airline that flies from Washington, D.C. Dulles Intl to Ontario?

Which airlines fly to Region of Ontario?

How many flights depart from Washington, D.C. Dulles Intl Airport to Region of Ontario on average per day?

How many flights depart from Washington, D.C. Dulles Intl Airport to Region of Ontario on average per week?

Cheap Washington, D.C. Dulles Intl Airport to Region of Ontario flight deals and tips

Best price found

Fastest flight time

Direct flights

Airports in Region of Ontario

Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Ontario

Best airlines flying from Washington, D.C. Dulles Intl Airport to Region of Ontario

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Region of Ontario with momondo

Why use momondo?

An easier way to manage your Region of Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Ontario

Popular Cities in Ontario

Popular flights according to clicks in the last 7 days on momondo

Washington, D.C. Dulles Intl Airport flight routes

According to popular flight searches on momondo this year

Region of Ontario flight routes

According to popular flight searches on momondo this year

Fly your favourite airline to Ontario

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Complete your trip to Ontario

Explore popular destinations other users love

According to popular flight searches on momondo this year