Cheap flights from Ontario to Washington, D.C. from C$ 185

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Washington, D.C. departing on 4/6. 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

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
Porter Airlines Logo
1:50 p.m. - 3:21 p.m.
YTZ
-
IAD
1h 31mdirect
Porter Airlines Logo
4:05 p.m. - 5:35 p.m.
IAD
-
YTZ
1h 30mdirect
C$ 271Porter Airlines
Wed, 20 May - Sun, 24 May
Porter Airlines Logo
9:15 a.m. - 10:46 a.m.
YTZ
-
IAD
1h 31mdirect
Porter Airlines Logo
11:30 a.m. - 1:00 p.m.
IAD
-
YTZ
1h 30mdirect
C$ 273Porter Airlines
Sat, 30 May - Tue, 9 Jun
Air Canada Logo
2:55 p.m. - 4:12 p.m.
YTZ
-
IAD
1h 17mdirect
Air Canada Logo
5:15 p.m. - 6:42 p.m.
IAD
-
YTZ
1h 27mdirect
C$ 275Air Canada
Thu, 4 Jun - Sun, 7 Jun
Air Canada Logo
8:30 a.m. - 3:03 p.m.
YTZ
-
IAD
6h 33m
1 stop
Air Canada Logo
5:15 p.m. - 6:42 p.m.
IAD
-
YTZ
1h 27mdirect
C$ 277Air Canada
Thu, 4 Jun - Sun, 7 Jun
Air Canada Logo
10:45 a.m. - 3:03 p.m.
YTZ
-
IAD
4h 18m
1 stop
Air Canada Logo
5:15 p.m. - 6:42 p.m.
IAD
-
YTZ
1h 27mdirect
C$ 278Air Canada
Thu, 4 Jun - Sun, 7 Jun
Porter Airlines Logo
9:15 a.m. - 10:46 a.m.
YTZ
-
IAD
1h 31mdirect
Porter Airlines Logo
4:05 p.m. - 5:35 p.m.
IAD
-
YTZ
1h 30mdirect
C$ 280Porter Airlines
Sat, 23 May - Sun, 24 May
United Airlines Logo
12:45 p.m. - 2:21 p.m.
YYZ
-
IAD
1h 36mdirect
United Airlines Logo
8:25 a.m. - 10:04 a.m.
IAD
-
YYZ
1h 39mdirect
C$ 285United Airlines
Fri, 22 May - Sun, 31 May
United Airlines Logo
7:43 p.m. - 9:26 p.m.
YYZ
-
IAD
1h 43mdirect
United Airlines Logo
8:29 a.m. - 7:00 p.m.
IAD
-
YYZ
10h 31m
1 stop
C$ 299United Airlines
Wed, 27 May - Tue, 2 Jun
Lufthansa Logo
7:43 p.m. - 9:26 p.m.
YYZ
-
IAD
1h 43mdirect
Lufthansa Logo
6:10 a.m. - 11:49 a.m.
IAD
-
YYZ
5h 39m
1 stop
C$ 310Lufthansa
Fri, 22 May - Mon, 25 May
Delta Logo
6:14 p.m. - 11:14 p.m.
YYZ
-
IAD
5h 00m
1 stop
Delta Logo
6:05 a.m. - 11:19 a.m.
IAD
-
YYZ
5h 14m
1 stop
C$ 316Delta
Thu, 11 Jun - Sun, 14 Jun

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

Our best Delta deals on Region of Ontario to Washington, D.C. Dulles Intl Airport flight tickets
Delta
11 Jun
YYZ6:14 p.m.Toronto Pearson Intl
5h 00m
1 stop
IAD11:14 p.m.Washington, D.C. Dulles Intl
14 Jun
IAD6:05 a.m.Washington, D.C. Dulles Intl
5h 14m
1 stop
YYZ11:19 a.m.Toronto Pearson Intl
C$ 316
Delta
21 May
YYZ2:20 p.m.Toronto Pearson Intl
8h 36m
1 stop
IAD10:56 p.m.Washington, D.C. Dulles Intl
24 May
IAD6:00 a.m.Washington, D.C. Dulles Intl
7h 30m
1 stop
YYZ1:30 p.m.Toronto Pearson Intl
C$ 330
Delta
3 Jun
YYZ6:12 p.m.Toronto Pearson Intl
4h 44m
1 stop
IAD10:56 p.m.Washington, D.C. Dulles Intl
10 Jun
IAD6:05 a.m.Washington, D.C. Dulles Intl
7h 29m
1 stop
YYZ1:34 p.m.Toronto Pearson Intl
C$ 331

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

Our best Air Canada deals on Region of Ontario to Washington, D.C. Dulles Intl Airport flight tickets
Air Canada
4 Jun
YTZ2:55 p.m.Toronto Island
1h 17m
IAD4:12 p.m.Washington, D.C. Dulles Intl
7 Jun
IAD5:15 p.m.Washington, D.C. Dulles Intl
1h 27m
YTZ6:42 p.m.Toronto Island
C$ 275
Air Canada
4 Jun
YTZ8:30 a.m.Toronto Island
6h 33m
1 stop
IAD3:03 p.m.Washington, D.C. Dulles Intl
7 Jun
IAD5:15 p.m.Washington, D.C. Dulles Intl
1h 27m
YTZ6:42 p.m.Toronto Island
C$ 277
Air Canada
3 Jun
YTZ8:30 a.m.Toronto Island
6h 33m
1 stop
IAD3:03 p.m.Washington, D.C. Dulles Intl
10 Jun
IAD5:15 p.m.Washington, D.C. Dulles Intl
1h 27m
YTZ6:42 p.m.Toronto Island
C$ 284

momondo Fare Finder

 
Customize your flight search to find flights from Region of Ontario to Washington, D.C. Dulles Intl Airport 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 8 May 2026.
Use the filters below to find and compare flights from Ontario to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Wed 20/5

1:50 p.m.-3:21 p.m.

Nonstop1h 31m

Washington, D.C. Dulles Intl

Sun 24/5

4:05 p.m.-5:35 p.m.

Nonstop1h 30m

C$ 271

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Sat 30/5

9:15 a.m.-10:46 a.m.

Nonstop1h 31m

Washington, D.C. Dulles Intl

Tue 9/6

11:30 a.m.-1:00 p.m.

Nonstop1h 30m

C$ 273
Quickest round-trip

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Thu 4/6

2:55 p.m.-4:12 p.m.

Nonstop1h 17m

Washington, D.C. Dulles Intl

Sun 7/6

5:15 p.m.-6:42 p.m.

Nonstop1h 27m

C$ 275

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Thu 4/6

8:30 a.m.-3:03 p.m.

1 stop6h 33m

Washington, D.C. Dulles Intl

Sun 7/6

5:15 p.m.-6:42 p.m.

Nonstop1h 27m

C$ 277

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Thu 4/6

10:45 a.m.-3:03 p.m.

1 stop4h 18m

Washington, D.C. Dulles Intl

Sun 7/6

5:15 p.m.-6:42 p.m.

Nonstop1h 27m

C$ 278

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Sat 23/5

9:15 a.m.-10:46 a.m.

Nonstop1h 31m

Washington, D.C. Dulles Intl

Sun 24/5

4:05 p.m.-5:35 p.m.

Nonstop1h 30m

C$ 280

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Fri 22/5

12:45 p.m.-2:21 p.m.

Nonstop1h 36m

Washington, D.C. Dulles Intl

Sun 31/5

8:25 a.m.-10:04 a.m.

Nonstop1h 39m

C$ 285

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Wed 27/5

7:43 p.m.-9:26 p.m.

Nonstop1h 43m

Washington, D.C. Dulles Intl

Tue 2/6

8:29 a.m.-7:00 p.m.

1 stop10h 31m

C$ 299

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Fri 22/5

7:43 p.m.-9:26 p.m.

Nonstop1h 43m

Washington, D.C. Dulles Intl

Mon 25/5

6:10 a.m.-11:49 a.m.

1 stop5h 39m

C$ 310

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Thu 11/6

6:14 p.m.-11:14 p.m.

1 stop5h 00m

Washington, D.C. Dulles Intl

Sun 14/6

6:05 a.m.-11:19 a.m.

1 stop5h 14m

C$ 316

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Washington, D.C. from

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

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 Washington, D.C. Dulles Intl Airport?

The cheapest month to fly to Washington, D.C. Dulles Intl Airport from Region of Ontario is in July. Flight prices, which tend to average around C$ 127, are often lower during this time because this is during the off-season. If you don’t want to visit Washington, D.C. Dulles Intl Airport in July, then you should wait until May to fly from Region of Ontario, when ticket prices are also cheap, with an average price of C$ 138.

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

According to our data, Friday is the cheapest day to fly to Washington, D.C. Dulles Intl Airport from Region of Ontario. The lowest ticket price found for a Friday departure recently was C$ 528. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Washington, D.C. Dulles Intl Airport on Sunday is C$ 969.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our most recent data shows that the best time of day to fly to Washington, D.C. Dulles Intl Airport is in the afternoon. Flights from Region of Ontario to Washington, D.C. Dulles Intl Airport during this time can be as low as C$ 511. In the evening is when there is more demand to fly to Washington, D.C. Dulles Intl Airport, so prices are often more expensive at around C$ 850 per ticket.

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

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

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

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around C$ 408 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Region of Ontario for as low as C$ 290 on momondo.

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

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

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

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

Best price found

C$ 215

Fastest flight time

1h 25m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from Region of Ontario in the past 72 hours is C$ 215. The best round-trip flight deal from Region of Ontario to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is C$ 294.
The fastest flight from Region of Ontario to Washington, D.C. Dulles Intl Airport takes 1h 25m
Direct flights go from Region of Ontario to Washington, D.C. Dulles Intl Airport every day.

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

  • When did momondo last update prices for flights from Ontario to Washington, D.C. Dulles Intl Airport?

    Prices for flights from Ontario to Washington, D.C. Dulles Intl Airport are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Region of Ontario to Washington, D.C. Dulles Intl Airport?

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

Compare and see reviews for airlines that fly from Region of Ontario to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Porter AirlinesPriceFrom C$ 221Free CancellationRating
8.0
437 reviews
Search Porter Airlines flights
Air CanadaPriceFrom C$ 292Free CancellationRating
7.1
11,006 reviews
Search Air Canada flights
Air TransatPriceFrom C$ 293Free CancellationRating
7.8
548 reviews
Search Air Transat flights
United AirlinesPriceFrom C$ 324Free CancellationRating
7.4
9,695 reviews
Search United Airlines flights

Travelling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Gettysburg
Chantilly
Fairfax
Gaithersburg
Linthicum Heights
Bethesda
National Harbor
Reston
Laurel
Winchester
Herndon
Arlington
Fredericksburg
Ashburn
Leesburg
Manassas
Woodbridge
Silver Spring
Falls Church

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from Ontario.

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

Flights from Ontario to Washington, D.C. with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once all potential Ontario to Washington, D.C. flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Ontario to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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1 adult
Sun 7/6
Sun 14/6

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