Cheap flights from Ontario to Washington, D.C. from $136

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 6/24. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Porter Airlines Logo
1:50 pm - 3:21 pm
YTZ
-
IAD
1h 31mnonstop
Porter Airlines Logo
11:30 am - 1:00 pm
IAD
-
YTZ
1h 30mnonstop
$199Porter Airlines
Fri, May 29 - Tue, Jun 16
Air Canada Logo
7:00 am - 12:01 pm
YYZ
-
DCA
5h 01m
1 stop
Air Canada Logo
6:00 am - 10:38 am
DCA
-
YYZ
4h 38m
1 stop
$200Air Canada
Thu, May 21 - Sun, May 24
Porter Airlines Logo
9:15 am - 10:46 am
YTZ
-
IAD
1h 31mnonstop
Porter Airlines Logo
11:30 am - 1:00 pm
IAD
-
YTZ
1h 30mnonstop
$200Porter Airlines
Sat, May 30 - Tue, Jun 9
Air Canada Logo
7:40 am - 12:01 pm
YTZ
-
DCA
4h 21m
1 stop
Air Canada Logo
6:00 am - 11:47 am
DCA
-
YTZ
5h 47m
1 stop
$200Air Canada
Wed, May 27 - Thu, May 28
Air Canada Logo
8:10 am - 12:01 pm
YYZ
-
DCA
3h 51m
1 stop
Air Canada Logo
6:59 am - 8:31 am
DCA
-
YYZ
1h 32mnonstop
$201Air Canada
Fri, Jun 5 - Mon, Jun 8
Air Transat Logo
9:15 am - 10:46 am
YTZ
-
IAD
1h 31mnonstop
Air Transat Logo
11:30 am - 1:00 pm
IAD
-
YTZ
1h 30mnonstop
$207Air Transat
Tue, Jun 16 - Tue, Jun 23
United Airlines Logo
9:35 am - 11:11 am
YYZ
-
IAD
1h 36mnonstop
United Airlines Logo
10:14 pm - 11:54 pm
IAD
-
YYZ
1h 40mnonstop
$209United Airlines
Fri, May 29 - Sat, Jun 20
United Airlines Logo
12:45 pm - 2:21 pm
YYZ
-
IAD
1h 36mnonstop
United Airlines Logo
6:33 am - 11:43 am
IAD
-
YYZ
5h 10m
1 stop
$218United Airlines
Wed, May 27 - Tue, Jun 2
Lufthansa Logo
2:35 pm - 4:18 pm
YYZ
-
IAD
1h 43mnonstop
Lufthansa Logo
6:10 am - 11:49 am
IAD
-
YYZ
5h 39m
1 stop
$226Lufthansa
Sat, May 23 - Mon, May 25
Lufthansa Logo
7:43 pm - 9:26 pm
YYZ
-
IAD
1h 43mnonstop
Lufthansa Logo
6:10 am - 11:49 am
IAD
-
YYZ
5h 39m
1 stop
$227Lufthansa
Fri, May 22 - Mon, May 25

Lufthansa flights from Region of Ontario to Washington, D.C.

Our best Lufthansa deals on Region of Ontario to Washington, D.C. flight tickets
Lufthansa
May 23
YYZ2:35 pmToronto Pearson Intl
1h 43m
IAD4:18 pmWashington, D.C. Dulles Intl
May 25
IAD6:10 amWashington, D.C. Dulles Intl
5h 39m
1 stop
YYZ11:49 amToronto Pearson Intl
$226
Lufthansa
May 22
YYZ7:43 pmToronto Pearson Intl
1h 43m
IAD9:26 pmWashington, D.C. Dulles Intl
May 25
IAD6:10 amWashington, D.C. Dulles Intl
5h 39m
1 stop
YYZ11:49 amToronto Pearson Intl
$227
Lufthansa
May 22
YYZ7:00 pmToronto Pearson Intl
4h 19m
1 stop
IAD11:19 pmWashington, D.C. Dulles Intl
May 25
IAD6:33 amWashington, D.C. Dulles Intl
5h 10m
1 stop
YYZ11:43 amToronto Pearson Intl
$241

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

Our best Air Canada deals on Region of Ontario to Washington, D.C. flight tickets
Air Canada
May 21
YYZ7:00 amToronto Pearson Intl
5h 01m
1 stop
DCA12:01 pmWashington, D.C. Reagan-National
May 24
DCA6:00 amWashington, D.C. Reagan-National
4h 38m
1 stop
YYZ10:38 amToronto Pearson Intl
$200
Air Canada
Jun 5
YYZ8:10 amToronto Pearson Intl
3h 51m
1 stop
DCA12:01 pmWashington, D.C. Reagan-National
Jun 8
DCA6:59 amWashington, D.C. Reagan-National
1h 32m
YYZ8:31 amToronto Pearson Intl
$201
Air Canada
May 21
YYZ8:55 pmToronto Pearson Intl
1h 33m
DCA10:28 pmWashington, D.C. Reagan-National
May 24
DCA6:00 amWashington, D.C. Reagan-National
5h 38m
1 stop
YYZ11:38 amToronto Pearson Intl
$202

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 832,500 searches. Data last updated May 10, 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

Fri 5/29

1:50 pm-3:21 pm

Nonstop1h 31m

Washington, D.C. Dulles Intl

Tue 6/16

11:30 am-1:00 pm

Nonstop1h 30m

$199

TorontoWashington, D.C.

YYZ - DCA

YYZDCA

Toronto Pearson Intl

Thu 5/21

7:00 am-12:01 pm

1 stop5h 01m

Washington, D.C. Reagan-National

Sun 5/24

6:00 am-10:38 am

1 stop4h 38m

$200

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Sat 5/30

9:15 am-10:46 am

Nonstop1h 31m

Washington, D.C. Dulles Intl

Tue 6/9

11:30 am-1:00 pm

Nonstop1h 30m

$200

TorontoWashington, D.C.

YTZ - DCA

YTZDCA

Toronto Island

Wed 5/27

7:40 am-12:01 pm

1 stop4h 21m

Washington, D.C. Reagan-National

Thu 5/28

6:00 am-11:47 am

1 stop5h 47m

$200

TorontoWashington, D.C.

YYZ - DCA

YYZDCA

Toronto Pearson Intl

Fri 6/5

8:10 am-12:01 pm

1 stop3h 51m

Washington, D.C. Reagan-National

Mon 6/8

6:59 am-8:31 am

Nonstop1h 32m

$201

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Tue 6/16

9:15 am-10:46 am

Nonstop1h 31m

Washington, D.C. Dulles Intl

Tue 6/23

11:30 am-1:00 pm

Nonstop1h 30m

$207

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Fri 5/29

9:35 am-11:11 am

Nonstop1h 36m

Washington, D.C. Dulles Intl

Sat 6/20

10:14 pm-11:54 pm

Nonstop1h 40m

$209

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Wed 5/27

12:45 pm-2:21 pm

Nonstop1h 36m

Washington, D.C. Dulles Intl

Tue 6/2

6:33 am-11:43 am

1 stop5h 10m

$218

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Sat 5/23

2:35 pm-4:18 pm

Nonstop1h 43m

Washington, D.C. Dulles Intl

Mon 5/25

6:10 am-11:49 am

1 stop5h 39m

$226

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Fri 5/22

7:43 pm-9:26 pm

Nonstop1h 43m

Washington, D.C. Dulles Intl

Mon 5/25

6:10 am-11:49 am

1 stop5h 39m

$227

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest 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.

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.?

The month of January is, on average, the cheapest month to fly to Washington, D.C. from Region of Ontario, with most prices found around $78. If you’re not able to fly to Washington, D.C. in January, then June is your next best option. Flight prices from Region of Ontario to Washington, D.C. during June average around $274.

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

On average, the least expensive day to fly to Washington, D.C. from Region of Ontario is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $304. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Region of Ontario to Washington, D.C. for around $482.

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

In the morning 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 $325. Flying to Washington, D.C. in the morning is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the evening because they tend to be around $439. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 from Ontario 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 $306 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 $213 on momondo.

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

You could potentially save up to 7% 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

$138

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 $138. The best round-trip flight deal from Region of Ontario to Washington, D.C. found on momondo in the last 72 hours is $190.
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).

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

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

    Prices for flights from Ontario to Washington, D.C. were last updated today.

  • 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 required for your trip to Washington, D.C. 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 Washington, D.C.. 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 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
United AirlinesPriceFrom $133Free CancellationRating
7.4
9,694 reviews
Search United Airlines flights
Air CanadaPriceFrom $181Free CancellationRating
7.1
11,012 reviews
Search Air Canada flights
Porter AirlinesPriceFrom $189Free CancellationRating
8.0
437 reviews
Search Porter Airlines flights
American AirlinesPriceFrom $218Free CancellationRating
7.1
11,667 reviews
Search American Airlines flights
WestJetPriceFrom $303Free CancellationRating
7.2
3,332 reviews
Search WestJet flights
DeltaPriceFrom $368Free CancellationRating
7.9
8,455 reviews
Search Delta flights

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Waldorf
Woodbridge
Laurel
Gaithersburg
Colonial Beach
Towson
Fredericksburg
Silver Spring
Rockville
Manassas
Linthicum Heights
Tysons
Bethesda
Springfield
Fairfax
College Park

Why use momondo?

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

Finding the right flight to Washington, D.C. from Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to Washington, D.C. from Ontario with this policy.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington, D.C. from Ontario.

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

If you are simply researching potential flights to Washington, D.C., momondo offers a useful price alert feature which will track prices for flights to Washington, D.C. from Ontario and alert you when they change.

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
Tue 6/9
Tue 6/16

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 22.4 mi from Washington, D.C.