Cheap flights from Ontario to Washington, D.C. from C$ 175

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 10/5. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

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

Trusted and free

Trusted and free

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

Price Alerts

Price Alerts

Not ready to book? to track prices.

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
9:25 a.m. - 10:54 a.m.
YTZ
-
IAD
1h 29mdirect
Porter Airlines Logo
11:40 a.m. - 1:10 p.m.
IAD
-
YTZ
1h 30mdirect
C$ 278Porter Airlines
Mon, 20 Apr - Thu, 30 Apr
Porter Airlines Logo
9:25 a.m. - 10:54 a.m.
YTZ
-
IAD
1h 29mdirect
Porter Airlines Logo
11:30 a.m. - 1:00 p.m.
IAD
-
YTZ
1h 30mdirect
C$ 279Porter Airlines
Wed, 29 Apr - Fri, 29 May
Air Canada Logo
7:55 a.m. - 12:01 p.m.
YTZ
-
DCA
4h 06m
1 stop
Air Canada Logo
12:55 p.m. - 6:22 p.m.
DCA
-
YTZ
5h 27m
1 stop
C$ 283Air Canada
Thu, 16 Apr - Sun, 19 Apr
Air Canada Logo
7:55 a.m. - 12:01 p.m.
YTZ
-
DCA
4h 06m
1 stop
Air Canada Logo
12:55 p.m. - 6:22 p.m.
DCA
-
YTZ
5h 27m
1 stop
C$ 290Air Canada
Thu, 16 Apr - Sun, 19 Apr
American Airlines Logo
11:10 a.m. - 12:54 p.m.
YYZ
-
DCA
1h 44mdirect
American Airlines Logo
6:00 a.m. - 2:43 p.m.
DCA
-
YYZ
8h 43m
1 stop
C$ 298American Airlines
Tue, 7 Apr - Wed, 8 Apr
American Airlines Logo
7:15 a.m. - 4:23 p.m.
YYZ
-
DCA
9h 08m
1 stop
American Airlines Logo
10:11 a.m. - 11:54 a.m.
DCA
-
YYZ
1h 43mdirect
C$ 307American Airlines
Tue, 7 Apr - Wed, 8 Apr
United Airlines Logo
12:45 p.m. - 2:24 p.m.
YYZ
-
IAD
1h 39mdirect
United Airlines Logo
8:20 a.m. - 10:04 a.m.
IAD
-
YYZ
1h 44mdirect
C$ 319United Airlines
Tue, 14 Apr - Tue, 21 Apr
United Airlines Logo
7:43 p.m. - 9:25 p.m.
YYZ
-
IAD
1h 42mdirect
United Airlines Logo
5:42 p.m. - 10:23 p.m.
IAD
-
YYZ
4h 41m
1 stop
C$ 333United Airlines
Mon, 13 Apr - Mon, 4 May
Multiple Airlines Logo
7:15 a.m. - 1:37 p.m.
YYZ
-
BWI
30h 22m
1 stop
Multiple Airlines Logo
5:49 p.m. - 12:14 a.m.
BWI
-
YYZ
30h 25m
2 stops
C$ 358Multiple Airlines
Tue, 7 Apr - Tue, 14 Apr
Multiple Airlines Logo
7:15 a.m. - 1:37 p.m.
YYZ
-
BWI
30h 22m
1 stop
Multiple Airlines Logo
8:39 p.m. - 12:14 a.m.
BWI
-
YYZ
27h 35m
1 stop
C$ 377Multiple Airlines
Tue, 7 Apr - Tue, 14 Apr

Porter Airlines flights from Region of Ontario to Washington, D.C.

Our best Porter Airlines deals on Region of Ontario to Washington, D.C. flight tickets
Porter Airlines
20 Apr
YTZ9:25 a.m.Toronto Island
1h 29m
IAD10:54 a.m.Washington, D.C. Dulles Intl
30 Apr
IAD11:40 a.m.Washington, D.C. Dulles Intl
1h 30m
YTZ1:10 p.m.Toronto Island
C$ 278
Porter Airlines
29 Apr
YTZ9:25 a.m.Toronto Island
1h 29m
IAD10:54 a.m.Washington, D.C. Dulles Intl
29 May
IAD11:30 a.m.Washington, D.C. Dulles Intl
1h 30m
YTZ1:00 p.m.Toronto Island
C$ 279
Porter Airlines
11 Apr
YTZ11:30 a.m.Toronto Island
1h 29m
IAD12:59 p.m.Washington, D.C. Dulles Intl
13 Apr
IAD11:40 a.m.Washington, D.C. Dulles Intl
1h 30m
YTZ1:10 p.m.Toronto Island
C$ 281

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

Our best United Airlines deals on Region of Ontario to Washington, D.C. flight tickets
United Airlines
14 Apr
YYZ12:45 p.m.Toronto Pearson Intl
1h 39m
IAD2:24 p.m.Washington, D.C. Dulles Intl
21 Apr
IAD8:20 a.m.Washington, D.C. Dulles Intl
1h 44m
YYZ10:04 a.m.Toronto Pearson Intl
C$ 319
United Airlines
13 Apr
YYZ7:43 p.m.Toronto Pearson Intl
1h 42m
IAD9:25 p.m.Washington, D.C. Dulles Intl
4 May
IAD5:42 p.m.Washington, D.C. Dulles Intl
4h 41m
1 stop
YYZ10:23 p.m.Toronto Pearson Intl
C$ 333
United Airlines
11 Jun
YYZ7:00 a.m.Toronto Pearson Intl
4h 52m
1 stop
IAD11:52 a.m.Washington, D.C. Dulles Intl
16 Jun
IAD10:14 p.m.Washington, D.C. Dulles Intl
1h 40m
YYZ11:54 p.m.Toronto Pearson Intl
C$ 340

momondo Fare Finder

 
Customize your flight search to find flights from Region of Ontario to Washington, D.C. 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 25 March 2026.
Use the filters below to find and compare flights from Ontario to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Mon 20/4

9:25 a.m.-10:54 a.m.

Nonstop1h 29m

Washington, D.C. Dulles Intl

Thu 30/4

11:40 a.m.-1:10 p.m.

Nonstop1h 30m

C$ 278

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Wed 29/4

9:25 a.m.-10:54 a.m.

Nonstop1h 29m

Washington, D.C. Dulles Intl

Fri 29/5

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

Nonstop1h 30m

C$ 279

TorontoWashington, D.C.

YTZ - DCA

YTZDCA

Toronto Island

Thu 16/4

7:55 a.m.-12:01 p.m.

1 stop4h 06m

Washington, D.C. Reagan-National

Sun 19/4

12:55 p.m.-6:22 p.m.

1 stop5h 27m

C$ 283

TorontoWashington, D.C.

YTZ - DCA

YTZDCA

Toronto Island

Thu 16/4

7:55 a.m.-12:01 p.m.

1 stop4h 06m

Washington, D.C. Reagan-National

Sun 19/4

12:55 p.m.-6:22 p.m.

1 stop5h 27m

C$ 290

TorontoWashington, D.C.

YYZ - DCA

YYZDCA

Toronto Pearson Intl

Tue 7/4

11:10 a.m.-12:54 p.m.

Nonstop1h 44m

Washington, D.C. Reagan-National

Wed 8/4

6:00 a.m.-2:43 p.m.

1 stop8h 43m

C$ 298

TorontoWashington, D.C.

YYZ - DCA

YYZDCA

Toronto Pearson Intl

Tue 7/4

7:15 a.m.-4:23 p.m.

1 stop9h 08m

Washington, D.C. Reagan-National

Wed 8/4

10:11 a.m.-11:54 a.m.

Nonstop1h 43m

C$ 307

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Tue 14/4

12:45 p.m.-2:24 p.m.

Nonstop1h 39m

Washington, D.C. Dulles Intl

Tue 21/4

8:20 a.m.-10:04 a.m.

Nonstop1h 44m

C$ 319

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Mon 13/4

7:43 p.m.-9:25 p.m.

Nonstop1h 42m

Washington, D.C. Dulles Intl

Mon 4/5

5:42 p.m.-10:23 p.m.

1 stop4h 41m

C$ 333

TorontoBaltimore

YYZ - BWI

YYZBWI

Toronto Pearson Intl

Tue 7/4

7:15 a.m.-1:37 p.m.

1 stop30h 22m

Baltimore/Washington

Tue 14/4

5:49 p.m.-12:14 a.m.

2 stops30h 25m

C$ 358

TorontoBaltimore

YYZ - BWI

YYZBWI

Toronto Pearson Intl

Tue 7/4

7:15 a.m.-1:37 p.m.

1 stop30h 22m

Baltimore/Washington

Tue 14/4

8:39 p.m.-12:14 a.m.

1 stop27h 35m

C$ 377

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Washington, D.C. from

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

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.?

If you aren’t able to travel during the month of October, then book flights to Washington, D.C. from Region of Ontario during August instead. Flights to Washington, D.C. in August, while not as cheap as those in October, still average around C$ 298.

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

The cheapest day to depart from Region of Ontario to Washington, D.C. is on a Friday. Travellers who choose to depart for Washington, D.C. on a Friday will often find tickets for as low as C$ 517. The most expensive day to fly to Washington, D.C. is Sunday, with ticket prices averaging around C$ 893.

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

In the afternoon is the cheapest time of day to fly from Region of Ontario to Washington, D.C. when you can find flight prices for as low as C$ 501. Flying to Washington, D.C. in the afternoon is an ideal time because this is during off-peak travel hours. In the evening is when there is more demand to fly to Washington, D.C., so prices are often more expensive at around C$ 849 per ticket.

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

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

How far in advance should I book a flight to Washington, D.C.?

You are more likely to see cheaper flights to Washington, D.C. from Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around C$ 403 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from Region of Ontario for as low as C$ 293 on momondo.

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

There are 4 cabin classes available to choose from on Ontario to Washington, D.C. 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 Region of Ontario to Washington, D.C. flights?

You could potentially save up to 15% on your flight if you consider stops on a Region of Ontario to Washington, D.C. flight.

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

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

Best price found

C$ 202

Fastest flight time

1h 25m

Direct flights

Every day

Airports in Washington, D.C.

2 airports
The best one-way flight to Washington, D.C. from Region of Ontario in the past 72 hours is C$ 202. The best round-trip flight deal from Region of Ontario to Washington, D.C. found on momondo in the last 72 hours is C$ 301.
The fastest flight from Region of Ontario to Washington, D.C. takes 1h 25m
Direct flights go from Region of Ontario to Washington, D.C. every day.
There are 2 airports in Washington, D.C.. From Region of Ontario there are direct flights to Washington, D.C. Dulles Intl (IAD).
  • When did momondo last update prices for flights from Ontario to Washington, D.C.?

    Prices for flights from Ontario to Washington, D.C. are refreshed on a daily basis.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario to Washington, D.C..

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

    The travel and health documents you'll need for your trip to Washington, D.C. 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.. 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.?

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

Compare and see reviews for airlines that fly from Region of Ontario to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
Porter AirlinesPriceFrom C$ 184Free CancellationRating
8.0
428 reviews
Search Porter Airlines flights
Air CanadaPriceFrom C$ 195Free CancellationRating
7.1
10,840 reviews
Search Air Canada flights
American AirlinesPriceFrom C$ 198Free CancellationRating
7.1
11,494 reviews
Search American Airlines flights
Air TransatPriceFrom C$ 209Free CancellationRating
7.7
523 reviews
Search Air Transat flights
United AirlinesPriceFrom C$ 235Free CancellationRating
7.4
9,477 reviews
Search United Airlines flights
DeltaPriceFrom C$ 317Free CancellationRating
7.9
8,326 reviews
Search Delta flights
WestJetPriceFrom C$ 393Free CancellationRating
7.2
3,302 reviews
Search WestJet 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
Gaithersburg
Fairfax
Linthicum Heights
Bethesda
National Harbor
Reston
Laurel
Herndon
Arlington
Fredericksburg
Manassas
Woodbridge
Silver Spring
Rockville
McLean
Tysons

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Washington, D.C.. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for Ontario to Washington, D.C. flights to just show those with flexible booking policies.

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

Once you have performed a search for Ontario to Washington, D.C. flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to Washington, D.C. from Ontario 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 Washington, D.C. 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.
1 adult
Fri 24/4
Fri 1/5

Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 36.1 km from Washington, D.C.