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Cheap flights from Washington, D.C. Dulles Intl Airport to Ontario from C$ 155

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 6/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
5:15 p.m. - 6:46 p.m.
IAD
-
YTZ
1h 31mdirect
Air Canada Logo
3:15 p.m. - 4:38 p.m.
YTZ
-
IAD
1h 23mdirect
C$ 321Air Canada
Thu, 13 Aug - Thu, 20 Aug
Multiple Airlines Logo
5:15 p.m. - 6:46 p.m.
IAD
-
YTZ
1h 31mdirect
Multiple Airlines Logo
1:40 p.m. - 3:11 p.m.
YTZ
-
IAD
1h 31mdirect
C$ 328Multiple Airlines
Thu, 23 Jul - Mon, 27 Jul
Air Canada Logo
4:20 p.m. - 5:50 p.m.
IAD
-
YYZ
1h 30mdirect
Air Canada Logo
1:55 p.m. - 3:24 p.m.
YYZ
-
IAD
1h 29mdirect
C$ 329Air Canada
Thu, 13 Aug - Thu, 20 Aug
Air Canada Logo
5:15 p.m. - 6:46 p.m.
IAD
-
YTZ
1h 31mdirect
Air Canada Logo
3:15 p.m. - 4:38 p.m.
YTZ
-
IAD
1h 23mdirect
C$ 331Air Canada
Thu, 20 Aug - Sat, 29 Aug
Air Canada Logo
5:15 p.m. - 6:46 p.m.
IAD
-
YTZ
1h 31mdirect
Air Canada Logo
3:15 p.m. - 4:38 p.m.
YTZ
-
IAD
1h 23mdirect
C$ 335Air Canada
Sun, 9 Aug - Sat, 15 Aug
Multiple Airlines Logo
5:15 p.m. - 6:46 p.m.
IAD
-
YTZ
1h 31mdirect
Multiple Airlines Logo
1:40 p.m. - 3:10 p.m.
YTZ
-
IAD
1h 30mdirect
C$ 336Multiple Airlines
Thu, 13 Aug - Mon, 17 Aug
Porter Airlines Logo
3:55 p.m. - 5:25 p.m.
IAD
-
YTZ
1h 30mdirect
Porter Airlines Logo
1:40 p.m. - 3:11 p.m.
YTZ
-
IAD
1h 31mdirect
C$ 339Porter Airlines
Thu, 23 Jul - Mon, 27 Jul
Porter Airlines Logo
3:55 p.m. - 5:25 p.m.
IAD
-
YTZ
1h 30mdirect
Porter Airlines Logo
1:40 p.m. - 3:11 p.m.
YTZ
-
IAD
1h 31mdirect
C$ 348Porter Airlines
Thu, 23 Jul - Mon, 27 Jul
WestJet Logo
7:00 p.m. - 5:20 a.m.
IAD
-
YXU
10h 20m
1 stop
WestJet Logo
8:40 p.m. - 6:10 p.m.
YXU
-
IAD
21h 30m
1 stop
C$ 874WestJet
Mon, 17 Aug - Thu, 20 Aug
WestJet Logo
7:00 p.m. - 5:20 a.m.
IAD
-
YXU
10h 20m
1 stop
WestJet Logo
6:10 a.m. - 6:10 p.m.
YXU
-
IAD
12h 00m
1 stop
C$ 972WestJet
Mon, 10 Aug - Mon, 17 Aug

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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
13 Aug
IAD5:15 p.m.Washington, D.C. Dulles Intl
1h 31m
YTZ6:46 p.m.Toronto Island
20 Aug
YTZ3:15 p.m.Toronto Island
1h 23m
IAD4:38 p.m.Washington, D.C. Dulles Intl
C$ 321
Air Canada
13 Aug
IAD4:20 p.m.Washington, D.C. Dulles Intl
1h 30m
YYZ5:50 p.m.Toronto Pearson Intl
20 Aug
YYZ1:55 p.m.Toronto Pearson Intl
1h 29m
IAD3:24 p.m.Washington, D.C. Dulles Intl
C$ 329
Air Canada
20 Aug
IAD5:15 p.m.Washington, D.C. Dulles Intl
1h 31m
YTZ6:46 p.m.Toronto Island
29 Aug
YTZ3:15 p.m.Toronto Island
1h 23m
IAD4:38 p.m.Washington, D.C. Dulles Intl
C$ 331

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
14 Jul
IAD12:40 p.m.Washington, D.C. Dulles Intl
1h 39m
YYZ2:19 p.m.Toronto Pearson Intl
24 Jul
YYZ2:30 p.m.Toronto Pearson Intl
1h 43m
IAD4:13 p.m.Washington, D.C. Dulles Intl
C$ 545
United Airlines
14 Jul
IAD10:31 a.m.Washington, D.C. Dulles Intl
5h 15m
1 stop
YYZ3:46 p.m.Toronto Pearson Intl
18 Jul
YYZ2:35 p.m.Toronto Pearson Intl
1h 43m
IAD4:18 p.m.Washington, D.C. Dulles Intl
C$ 559
United Airlines
18 Jul
IAD5:15 p.m.Washington, D.C. Dulles Intl
1h 47m
YYZ7:02 p.m.Toronto Pearson Intl
15 Aug
YYZ7:00 a.m.Toronto Pearson Intl
4h 52m
1 stop
IAD11:52 a.m.Washington, D.C. Dulles Intl
C$ 568

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 5 July 2026.
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
Quickest round-trip

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 13/8

5:15 p.m.-6:46 p.m.

Nonstop1h 31m

Toronto Island

Thu 20/8

3:15 p.m.-4:38 p.m.

Nonstop1h 23m

C$ 321

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 23/7

5:15 p.m.-6:46 p.m.

Nonstop1h 31m

Toronto Island

Mon 27/7

1:40 p.m.-3:11 p.m.

Nonstop1h 31m

C$ 328

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Thu 13/8

4:20 p.m.-5:50 p.m.

Nonstop1h 30m

Toronto Pearson Intl

Thu 20/8

1:55 p.m.-3:24 p.m.

Nonstop1h 29m

C$ 329

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 20/8

5:15 p.m.-6:46 p.m.

Nonstop1h 31m

Toronto Island

Sat 29/8

3:15 p.m.-4:38 p.m.

Nonstop1h 23m

C$ 331

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Sun 9/8

5:15 p.m.-6:46 p.m.

Nonstop1h 31m

Toronto Island

Sat 15/8

3:15 p.m.-4:38 p.m.

Nonstop1h 23m

C$ 335

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 13/8

5:15 p.m.-6:46 p.m.

Nonstop1h 31m

Toronto Island

Mon 17/8

1:40 p.m.-3:10 p.m.

Nonstop1h 30m

C$ 336

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 23/7

3:55 p.m.-5:25 p.m.

Nonstop1h 30m

Toronto Island

Mon 27/7

1:40 p.m.-3:11 p.m.

Nonstop1h 31m

C$ 339

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 23/7

3:55 p.m.-5:25 p.m.

Nonstop1h 30m

Toronto Island

Mon 27/7

1:40 p.m.-3:11 p.m.

Nonstop1h 31m

C$ 348

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Mon 17/8

7:00 p.m.-5:20 a.m.

1 stop10h 20m

London

Thu 20/8

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

1 stop21h 30m

C$ 874

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Mon 10/8

7:00 p.m.-5:20 a.m.

1 stop10h 20m

London

Mon 17/8

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

1 stop12h 00m

C$ 972

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, September 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$ 77. If you are unable to visit Region of Ontario during the month of September, then departing from Washington, D.C. Dulles Intl Airport during the month May is also very affordable. Most momondo users find prices during this month for around C$ 123.

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 Sunday. Travellers who choose to depart for Region of Ontario on a Sunday will often find tickets for as low as C$ 368. The most expensive day to fly to Region of Ontario is Wednesday, with ticket prices averaging around C$ 486.

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$ 550 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$ 526 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$ 409 on momondo.

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

There are 3 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$ 161

Fastest flight time

1h 25m

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$ 161. 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$ 339.
The fastest flight from Washington, D.C. Dulles Intl Airport to Region of Ontario takes 1h 25m
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?

  • 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$ 181Free CancellationRating
7.1
11,298 reviews
Search Air Canada flights
Porter AirlinesPriceFrom C$ 290Free CancellationRating
7.9
442 reviews
Search Porter Airlines flights
United AirlinesPriceFrom C$ 372Free CancellationRating
7.4
9,930 reviews
Search United 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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Find better results for your trip to Ontario

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