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Cheap flights from Washington, D.C. Dulles Intl Airport to Ontario from C$ 133

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Ontario departing on 12/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Ontario

Cheap round-trip flights

Porter Airlines Logo
1:45 p.m. - 3:15 p.m.IAD-YTZ
1h 30mdirect
Porter Airlines Logo
8:55 a.m. - 10:24 a.m.YTZ-IAD
1h 29mdirect
C$ 292Porter Airlines
Find Deal
Sat, 8 Nov - Fri, 14 Nov
Porter Airlines Logo
4:20 p.m. - 5:53 p.m.IAD-YTZ
1h 33mdirect
Porter Airlines Logo
1:35 p.m. - 3:06 p.m.YTZ-IAD
1h 31mdirect
C$ 293Porter Airlines
Find Deal
Thu, 16 Oct - Thu, 23 Oct
Air Canada Logo
4:30 p.m. - 5:58 p.m.IAD-YYZ
1h 28mdirect
Air Canada Logo
2:20 p.m. - 3:51 p.m.YYZ-IAD
1h 31mdirect
C$ 293Air Canada
Find Deal
Thu, 30 Oct - Thu, 6 Nov
Air Canada Logo
9:45 a.m. - 3:34 p.m.IAD-YYZ
5h 49m1 stop
Air Canada Logo
6:55 p.m. - 8:26 p.m.YYZ-IAD
1h 31mdirect
C$ 297Air Canada
Find Deal
Thu, 30 Oct - Thu, 6 Nov
Multiple Airlines Logo
8:53 p.m. - 2:25 p.m.IAD-YYZ
17h 32m1 stop
Multiple Airlines Logo
10:15 a.m. - 6:45 p.m.YYZ-IAD
8h 30m1 stop
C$ 322Multiple Airlines
Find Deal
Fri, 24 Oct - Mon, 27 Oct
Multiple Airlines Logo
9:35 a.m. - 4:45 p.m.IAD-YTZ
7h 10m1 stop
Multiple Airlines Logo
1:35 p.m. - 3:06 p.m.YTZ-IAD
1h 31mdirect
C$ 323Multiple Airlines
Find Deal
Mon, 6 Oct - Wed, 8 Oct
United Airlines Logo
5:15 p.m. - 6:57 p.m.IAD-YYZ
1h 42mdirect
United Airlines Logo
7:40 p.m. - 9:20 p.m.YYZ-IAD
1h 40mdirect
C$ 351United Airlines
Find Deal
Sun, 2 Nov - Tue, 11 Nov
United Airlines Logo
10:11 p.m. - 11:46 p.m.IAD-YYZ
1h 35mdirect
United Airlines Logo
10:00 a.m. - 11:45 a.m.YYZ-IAD
1h 45mdirect
C$ 360United Airlines
Find Deal
Fri, 7 Nov - Sat, 8 Nov
Delta Logo
6:05 a.m. - 2:45 p.m.IAD-YYZ
8h 40m1 stop
Delta Logo
6:00 a.m. - 11:31 a.m.YYZ-IAD
5h 31m1 stop
C$ 395Delta
Find Deal
Thu, 6 Nov - Wed, 12 Nov
Delta Logo
6:05 a.m. - 11:20 a.m.IAD-YYZ
5h 15m1 stop
Delta Logo
9:45 a.m. - 4:29 p.m.YYZ-IAD
6h 44m1 stop
C$ 410Delta
Find Deal
Sat, 1 Nov - Tue, 4 Nov

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

Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to Region of Ontario flight tickets
United Airlines
2 Nov
IAD5:15 p.m.Washington, D.C. Dulles Intl
1h 42m
YYZ6:57 p.m.Toronto Pearson Intl
11 Nov
YYZ7:40 p.m.Toronto Pearson Intl
1h 40m
IAD9:20 p.m.Washington, D.C. Dulles Intl
C$ 351
Find similar
United Airlines
7 Nov
IAD10:11 p.m.Washington, D.C. Dulles Intl
1h 35m
YYZ11:46 p.m.Toronto Pearson Intl
8 Nov
YYZ10:00 a.m.Toronto Pearson Intl
1h 45m
IAD11:45 a.m.Washington, D.C. Dulles Intl
C$ 360
Find similar
United Airlines
22 Oct
IAD10:10 p.m.Washington, D.C. Dulles Intl
13h 39m
1 stop
YYZ11:49 a.m.Toronto Pearson Intl
23 Oct
YYZ3:00 p.m.Toronto Pearson Intl
6h 11m
1 stop
IAD9:11 p.m.Washington, D.C. Dulles Intl
C$ 362
Find similar

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
6 Nov
IAD6:05 a.m.Washington, D.C. Dulles Intl
8h 40m
1 stop
YYZ2:45 p.m.Toronto Pearson Intl
12 Nov
YYZ6:00 a.m.Toronto Pearson Intl
5h 31m
1 stop
IAD11:31 a.m.Washington, D.C. Dulles Intl
C$ 395
Find similar
Delta
1 Nov
IAD6:05 a.m.Washington, D.C. Dulles Intl
5h 15m
1 stop
YYZ11:20 a.m.Toronto Pearson Intl
4 Nov
YYZ9:45 a.m.Toronto Pearson Intl
6h 44m
1 stop
IAD4:29 p.m.Washington, D.C. Dulles Intl
C$ 410
Find similar
Delta
1 Oct
IAD6:00 a.m.Washington, D.C. Dulles Intl
5h 20m
1 stop
YYZ11:20 a.m.Toronto Pearson Intl
8 Oct
YYZ6:00 a.m.Toronto Pearson Intl
5h 57m
1 stop
IAD11:57 a.m.Washington, D.C. Dulles Intl
C$ 425
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to Region of Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 96,600 searches. Data last updated 17 September 2025.
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

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Sat 8/11

1:45 p.m.-3:15 p.m.

Nonstop1h 30m

Toronto Island

Fri 14/11

8:55 a.m.-10:24 a.m.

Nonstop1h 29m

C$ 292

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 16/10

4:20 p.m.-5:53 p.m.

Nonstop1h 33m

Toronto Island

Thu 23/10

1:35 p.m.-3:06 p.m.

Nonstop1h 31m

C$ 293

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Thu 30/10

4:30 p.m.-5:58 p.m.

Nonstop1h 28m

Toronto Pearson Intl

Thu 6/11

2:20 p.m.-3:51 p.m.

Nonstop1h 31m

C$ 293

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Thu 30/10

9:45 a.m.-3:34 p.m.

1 stop5h 49m

Toronto Pearson Intl

Thu 6/11

6:55 p.m.-8:26 p.m.

Nonstop1h 31m

C$ 297

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Fri 24/10

8:53 p.m.-2:25 p.m.

1 stop17h 32m

Toronto Pearson Intl

Mon 27/10

10:15 a.m.-6:45 p.m.

1 stop8h 30m

C$ 322

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Mon 6/10

9:35 a.m.-4:45 p.m.

1 stop7h 10m

Toronto Island

Wed 8/10

1:35 p.m.-3:06 p.m.

Nonstop1h 31m

C$ 323

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Sun 2/11

5:15 p.m.-6:57 p.m.

Nonstop1h 42m

Toronto Pearson Intl

Tue 11/11

7:40 p.m.-9:20 p.m.

Nonstop1h 40m

C$ 351

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Fri 7/11

10:11 p.m.-11:46 p.m.

Nonstop1h 35m

Toronto Pearson Intl

Sat 8/11

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

Nonstop1h 45m

C$ 360

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Thu 6/11

6:05 a.m.-2:45 p.m.

1 stop8h 40m

Toronto Pearson Intl

Wed 12/11

6:00 a.m.-11:31 a.m.

1 stop5h 31m

C$ 395

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Sat 1/11

6:05 a.m.-11:20 a.m.

1 stop5h 15m

Toronto Pearson Intl

Tue 4/11

9:45 a.m.-4:29 p.m.

1 stop6h 44m

C$ 410

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Ontario from

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

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

In general, June 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$ 315. If you are unable to visit Region of Ontario during the month of June, then departing from Washington, D.C. Dulles Intl Airport during the month February is also very affordable. Most momondo users find prices during this month for around C$ 329.

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$ 336. The most expensive day to fly to Region of Ontario is Sunday, with ticket prices averaging around C$ 483.

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 morning. Flights from Washington, D.C. Dulles Intl Airport to Region of Ontario during this time can be as low as C$ 397. If you have a flexible travel schedule, then try to avoid flying at noon when prices are C$ 460 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 Island for the best Washington, D.C. Dulles Intl - Ontario flight prices

How far in advance should I book a flight to Region of 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$ 456 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$ 344 on momondo.

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

There are 4 cabin classes available to choose from on Washington, D.C. Dulles Intl to 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$ 169

Fastest flight time

1h 28m

Direct flights

Every day

Airports in Region of Ontario

2 airports
The best one-way flight to Region of Ontario from Washington, D.C. Dulles Intl Airport in the past 72 hours is C$ 169. 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$ 333.
The fastest flight from Washington, D.C. Dulles Intl Airport to Region of Ontario takes 1h 28m
Direct flights go from Washington, D.C. Dulles Intl Airport to Region of Ontario every day.
There are 2 airports near Region of Ontario: Toronto Pearson Intl (YYZ), Toronto Island (YTZ)
Search flight deals

  • 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?

  • 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?

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
Air CanadaPriceFrom C$ 177Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
United AirlinesPriceFrom C$ 182Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
Porter AirlinesPriceFrom C$ 242Free CancellationRating
7.9
365 reviews
Search Porter Airlines 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.

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