Latest deals
Insights
FAQs
Reviews
Price Alerts

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 5/1. 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

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.
Search flight deals

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
8:50 a.m. - 10:19 a.m.
YTZ
-
IAD
1h 29mdirect
Porter Airlines Logo
11:35 a.m. - 1:09 p.m.
IAD
-
YTZ
1h 34mdirect
C$ 275Porter Airlines
lun., 12 ene. - lun., 19 ene.
Porter Airlines Logo
8:50 a.m. - 10:19 a.m.
YTZ
-
IAD
1h 29mdirect
Porter Airlines Logo
11:35 a.m. - 1:09 p.m.
IAD
-
YTZ
1h 34mdirect
C$ 277Porter Airlines
jue., 15 ene. - lun., 19 ene.
Porter Airlines Logo
8:55 a.m. - 10:24 a.m.
YTZ
-
IAD
1h 29mdirect
Porter Airlines Logo
11:40 a.m. - 1:10 p.m.
IAD
-
YTZ
1h 30mdirect
C$ 282Porter Airlines
jue., 26 mar. - lun., 30 mar.
Air Canada Logo
6:55 p.m. - 8:26 p.m.
YYZ
-
IAD
1h 31mdirect
Air Canada Logo
9:00 a.m. - 10:29 a.m.
IAD
-
YYZ
1h 29mdirect
C$ 284Air Canada
mar., 20 ene. - mié., 11 feb.
United Airlines Logo
7:40 p.m. - 9:21 p.m.
YYZ
-
IAD
1h 41mdirect
United Airlines Logo
8:15 a.m. - 7:45 p.m.
IAD
-
YYZ
11h 30m1 stop
C$ 288United Airlines
jue., 26 feb. - vie., 27 feb.
Air Canada Logo
4:10 p.m. - 9:25 p.m.
YYZ
-
IAD
5h 15m1 stop
Air Canada Logo
4:30 p.m. - 5:58 p.m.
IAD
-
YYZ
1h 28mdirect
C$ 291Air Canada
mar., 20 ene. - mié., 11 feb.
Air Transat Logo
8:50 a.m. - 10:19 a.m.
YTZ
-
IAD
1h 29mdirect
Air Transat Logo
11:35 a.m. - 1:09 p.m.
IAD
-
YTZ
1h 34mdirect
C$ 297Air Transat
lun., 5 ene. - lun., 12 ene.
Multiple Airlines Logo
8:50 a.m. - 10:19 a.m.
YTZ
-
IAD
1h 29mdirect
Multiple Airlines Logo
9:45 a.m. - 2:25 p.m.
IAD
-
YTZ
4h 40m1 stop
C$ 300Multiple Airlines
mié., 28 ene. - mié., 4 feb.
Multiple Airlines Logo
6:45 a.m. - 10:19 a.m.
YUL
-
IAD
3h 34m1 stop
Multiple Airlines Logo
8:53 p.m. - 12:43 a.m.
IAD
-
YUL
27h 50m2 stops
C$ 379Multiple Airlines
lun., 5 ene. - lun., 19 ene.
United Airlines Logo
9:50 a.m. - 5:35 p.m.
YXU
-
IAD
7h 45m2 stops
United Airlines Logo
8:29 a.m. - 5:05 p.m.
IAD
-
YXU
8h 36m2 stops
C$ 777United Airlines
mar., 13 ene. - vie., 16 ene.

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

Our best WestJet deals on Region of Ontario to Washington, D.C. Dulles Intl Airport flight tickets
WestJet
3 Mar
YUL12:30 p.m.Montreal Pierre Elliott Trudeau Intl
6h 06m
1 stop
IAD6:36 p.m.Washington, D.C. Dulles Intl
10 Mar
IAD6:00 a.m.Washington, D.C. Dulles Intl
5h 32m
1 stop
YUL11:32 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 449
Find similar
WestJet
13 Feb
YUL2:40 p.m.Montreal Pierre Elliott Trudeau Intl
9h 15m
1 stop
IAD11:55 p.m.Washington, D.C. Dulles Intl
22 Feb
IAD7:00 a.m.Washington, D.C. Dulles Intl
6h 40m
1 stop
YUL1:40 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 450
Find similar

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
20 Jan
YYZ6:55 p.m.Toronto Pearson Intl
1h 31m
IAD8:26 p.m.Washington, D.C. Dulles Intl
11 Feb
IAD9:00 a.m.Washington, D.C. Dulles Intl
1h 29m
YYZ10:29 a.m.Toronto Pearson Intl
C$ 284
Find similar
Air Canada
20 Jan
YYZ4:10 p.m.Toronto Pearson Intl
5h 15m
1 stop
IAD9:25 p.m.Washington, D.C. Dulles Intl
11 Feb
IAD4:30 p.m.Washington, D.C. Dulles Intl
1h 28m
YYZ5:58 p.m.Toronto Pearson Intl
C$ 291
Find similar
Air Canada
8 Jan
YYZ6:55 p.m.Toronto Pearson Intl
1h 31m
IAD8:26 p.m.Washington, D.C. Dulles Intl
12 Jan
IAD9:00 a.m.Washington, D.C. Dulles Intl
1h 29m
YYZ10:29 a.m.Toronto Pearson Intl
C$ 293
Find similar

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 15 diciembre 2025.
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

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

lun. 12/1

8:50 a.m.-10:19 a.m.

Nonstop1h 29m

Washington, D.C. Dulles Intl

lun. 19/1

11:35 a.m.-1:09 p.m.

Nonstop1h 34m

C$ 275

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

jue. 15/1

8:50 a.m.-10:19 a.m.

Nonstop1h 29m

Washington, D.C. Dulles Intl

lun. 19/1

11:35 a.m.-1:09 p.m.

Nonstop1h 34m

C$ 277

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

jue. 26/3

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

Nonstop1h 29m

Washington, D.C. Dulles Intl

lun. 30/3

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

Nonstop1h 30m

C$ 282

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

mar. 20/1

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

Nonstop1h 31m

Washington, D.C. Dulles Intl

mié. 11/2

9:00 a.m.-10:29 a.m.

Nonstop1h 29m

C$ 284

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

jue. 26/2

7:40 p.m.-9:21 p.m.

Nonstop1h 41m

Washington, D.C. Dulles Intl

vie. 27/2

8:15 a.m.-7:45 p.m.

1 stop11h 30m

C$ 288

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

mar. 20/1

4:10 p.m.-9:25 p.m.

1 stop5h 15m

Washington, D.C. Dulles Intl

mié. 11/2

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

Nonstop1h 28m

C$ 291

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

lun. 5/1

8:50 a.m.-10:19 a.m.

Nonstop1h 29m

Washington, D.C. Dulles Intl

lun. 12/1

11:35 a.m.-1:09 p.m.

Nonstop1h 34m

C$ 297

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

mié. 28/1

8:50 a.m.-10:19 a.m.

Nonstop1h 29m

Washington, D.C. Dulles Intl

mié. 4/2

9:45 a.m.-2:25 p.m.

1 stop4h 40m

C$ 300

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

lun. 5/1

6:45 a.m.-10:19 a.m.

1 stop3h 34m

Washington, D.C. Dulles Intl

lun. 19/1

8:53 p.m.-12:43 a.m.

2 stops27h 50m

C$ 379

LondonWashington, D.C.

YXU - IAD

YXUIAD

London

mar. 13/1

9:50 a.m.-5:35 p.m.

2 stops7h 45m

Washington, D.C. Dulles Intl

vie. 16/1

8:29 a.m.-5:05 p.m.

2 stops8h 36m

C$ 777

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. 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$ 268, 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 June to fly from Region of Ontario, when ticket prices are also cheap, with an average price of C$ 286.

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$ 517. 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 Monday as prices are generally higher than usual. According to our data, the average ticket price to Washington, D.C. Dulles Intl Airport on Monday is C$ 861.

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$ 444. 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$ 803 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 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$ 398 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$ 330 on momondo.

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

There are 4 cabin classes available to choose from on Ontario to Washington, D.C. Dulles Intl 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. 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$ 163

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$ 163. 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$ 267.
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.
Search flight deals

  • 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
Air TransatPriceFrom C$ 209Free CancellationRating
7.8
482 reviews
Search Air Transat flights
Porter AirlinesPriceFrom C$ 211Free CancellationRating
8.0
399 reviews
Search Porter Airlines flights
United AirlinesPriceFrom C$ 260Free CancellationRating
7.4
9,092 reviews
Search United Airlines flights
Air CanadaPriceFrom C$ 270Free CancellationRating
7.1
10,525 reviews
Search Air Canada flights
WestJetPriceFrom C$ 411Free CancellationRating
7.2
3,202 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
Gettysburg
Alexandria
Fairfax
Linthicum Heights
Silver Spring
Bethesda
Gaithersburg
Reston
Herndon
Laurel
Chantilly
Arlington
Capitol Heights
Winchester
Leesburg
Manassas
Fredericksburg
Ashburn
Woodbridge
Rockville

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.

An easier way to manage your Washington, D.C. Dulles Intl Airport 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
mié. 14/1
mié. 21/1
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Washington, D.C.