Cheap flights from Washington, D.C. to Ontario from $69

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. to Ontario departing on 10/31. 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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Find the cheapest flights from Washington, D.C. to Ontario

Cheap round-trip flights

Multiple Airlines Logo
9:41 pm - 2:20 pmBWI-YYZ
16h 39m1 stop
Multiple Airlines Logo
12:50 pm - 8:32 pmYYZ-BWI
7h 42m1 stop
$191Multiple Airlines
Find Deal
Fri, Oct 31 - Fri, Nov 7
Multiple Airlines Logo
9:41 pm - 2:20 pmBWI-YYZ
16h 39m1 stop
Multiple Airlines Logo
12:50 pm - 8:32 pmYYZ-BWI
7h 42m1 stop
$200Multiple Airlines
Find Deal
Fri, Oct 31 - Fri, Nov 7
Multiple Airlines Logo
8:21 pm - 2:05 pmBWI-YYZ
17h 44m1 stop
Multiple Airlines Logo
6:30 am - 11:01 amYYZ-BWI
28h 31m1 stop
$211Multiple Airlines
Find Deal
Mon, Oct 6 - Tue, Oct 14
Porter Airlines Logo
1:45 pm - 3:15 pmIAD-YTZ
1h 30mnonstop
Porter Airlines Logo
8:55 am - 10:24 amYTZ-IAD
1h 29mnonstop
$212Porter Airlines
Find Deal
Sat, Nov 8 - Fri, Nov 14
Air Canada Logo
6:00 am - 10:39 amDCA-YYZ
4h 39m1 stop
Air Canada Logo
7:25 am - 8:59 amYYZ-DCA
1h 34mnonstop
$213Air Canada
Find Deal
Thu, Oct 16 - Sun, Oct 19
Air Canada Logo
4:30 pm - 5:58 pmIAD-YYZ
1h 28mnonstop
Air Canada Logo
2:20 pm - 3:51 pmYYZ-IAD
1h 31mnonstop
$213Air Canada
Find Deal
Thu, Oct 30 - Thu, Nov 6
Porter Airlines Logo
4:20 pm - 5:53 pmIAD-YTZ
1h 33mnonstop
Porter Airlines Logo
1:35 pm - 3:06 pmYTZ-IAD
1h 31mnonstop
$213Porter Airlines
Find Deal
Thu, Oct 16 - Thu, Oct 23
United Airlines Logo
5:15 pm - 6:57 pmIAD-YYZ
1h 42mnonstop
United Airlines Logo
7:40 pm - 9:20 pmYYZ-IAD
1h 40mnonstop
$255United Airlines
Find Deal
Sun, Nov 2 - Tue, Nov 11
United Airlines Logo
10:11 pm - 11:46 pmIAD-YYZ
1h 35mnonstop
United Airlines Logo
10:00 am - 11:45 amYYZ-IAD
1h 45mnonstop
$262United Airlines
Find Deal
Fri, Nov 7 - Wed, Nov 12
American Airlines Logo
1:30 pm - 5:15 pmDCA-YYZ
3h 45m1 stop
American Airlines Logo
5:17 pm - 6:59 pmYYZ-DCA
1h 42mnonstop
$295American Airlines
Find Deal
Fri, Oct 3 - Sat, Oct 4

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

Our best American Airlines deals on Washington, D.C. to Region of Ontario flight tickets
American Airlines
Oct 3
DCA1:30 pmWashington, D.C. Reagan-National
3h 45m
1 stop
YYZ5:15 pmToronto Pearson Intl
Oct 4
YYZ5:17 pmToronto Pearson Intl
1h 42m
DCA6:59 pmWashington, D.C. Reagan-National
American Airlines
Sep 26
DCA7:29 amWashington, D.C. Reagan-National
7h 15m
1 stop
YYZ2:44 pmToronto Pearson Intl
Oct 2
YYZ5:17 pmToronto Pearson Intl
1h 42m
DCA6:59 pmWashington, D.C. Reagan-National
American Airlines
Sep 27
DCA1:39 pmWashington, D.C. Reagan-National
7h 51m
1 stop
YYZ9:30 pmToronto Pearson Intl
Oct 1
YYZ5:17 pmToronto Pearson Intl
1h 42m
DCA6:59 pmWashington, D.C. Reagan-National

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

Our best United Airlines deals on Washington, D.C. to Region of Ontario flight tickets
United Airlines
Nov 2
IAD5:15 pmWashington, D.C. Dulles Intl
1h 42m
YYZ6:57 pmToronto Pearson Intl
Nov 11
YYZ7:40 pmToronto Pearson Intl
1h 40m
IAD9:20 pmWashington, D.C. Dulles Intl
United Airlines
Nov 7
IAD10:11 pmWashington, D.C. Dulles Intl
1h 35m
YYZ11:46 pmToronto Pearson Intl
Nov 12
YYZ10:00 amToronto Pearson Intl
1h 45m
IAD11:45 amWashington, D.C. Dulles Intl
United Airlines
Oct 22
IAD10:10 pmWashington, D.C. Dulles Intl
13h 39m
1 stop
YYZ11:49 amToronto Pearson Intl
Oct 23
YYZ3:00 pmToronto Pearson Intl
6h 11m
1 stop
IAD9:11 pmWashington, D.C. Dulles Intl

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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 832,500 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreToronto

BWI - YYZ

BWIYYZ

Baltimore/Washington

Fri 10/31

9:41 pm-2:20 pm

1 stop16h 39m

Toronto Pearson Intl

Fri 11/7

12:50 pm-8:32 pm

1 stop7h 42m

$191

BaltimoreToronto

BWI - YYZ

BWIYYZ

Baltimore/Washington

Fri 10/31

9:41 pm-2:20 pm

1 stop16h 39m

Toronto Pearson Intl

Fri 11/7

12:50 pm-8:32 pm

1 stop7h 42m

$200

BaltimoreToronto

BWI - YYZ

BWIYYZ

Baltimore/Washington

Mon 10/6

8:21 pm-2:05 pm

1 stop17h 44m

Toronto Pearson Intl

Tue 10/14

6:30 am-11:01 am

1 stop28h 31m

$211

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Sat 11/8

1:45 pm-3:15 pm

Nonstop1h 30m

Toronto Island

Fri 11/14

8:55 am-10:24 am

Nonstop1h 29m

$212

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Thu 10/16

6:00 am-10:39 am

1 stop4h 39m

Toronto Pearson Intl

Sun 10/19

7:25 am-8:59 am

Nonstop1h 34m

$213

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Thu 10/30

4:30 pm-5:58 pm

Nonstop1h 28m

Toronto Pearson Intl

Thu 11/6

2:20 pm-3:51 pm

Nonstop1h 31m

$213

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 10/16

4:20 pm-5:53 pm

Nonstop1h 33m

Toronto Island

Thu 10/23

1:35 pm-3:06 pm

Nonstop1h 31m

$213

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Sun 11/2

5:15 pm-6:57 pm

Nonstop1h 42m

Toronto Pearson Intl

Tue 11/11

7:40 pm-9:20 pm

Nonstop1h 40m

$255

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Fri 11/7

10:11 pm-11:46 pm

Nonstop1h 35m

Toronto Pearson Intl

Wed 11/12

10:00 am-11:45 am

Nonstop1h 45m

$262

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Fri 10/3

1:30 pm-5:15 pm

1 stop3h 45m

Toronto Pearson Intl

Sat 10/4

5:17 pm-6:59 pm

Nonstop1h 42m

$295

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 Ontario from

How to get the cheapest flight ticket from Washington, D.C. 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?

The month of June is, on average, the cheapest month to fly to Region of Ontario from Washington, D.C., with most prices found around $219. If you aren’t able to travel during the month of June, then book flights to Region of Ontario from Washington, D.C. during April instead. Flights to Region of Ontario in April, while not as cheap as those in June, still average around $264.

What is the cheapest day to depart on your flight to Region of Ontario?

According to our data, Friday is the cheapest day to fly to Region of Ontario from Washington, D.C.. The lowest ticket price found for a Friday departure recently was $350. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Washington, D.C. to Region of Ontario on a Sunday will generally be more expensive and average around $564. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Region of Ontario?

According to our data, the cheapest time of day to fly to Region of Ontario is in the afternoon. momondo users have found flights departing from Washington, D.C. to Region of Ontario in the afternoon for as low as $315. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the evening are often more expensive with an average ticket price of $725.

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

Fly from Washington, D.C. Reagan-National to Toronto Pearson Intl for the best Washington, D.C. - Ontario flight prices

How far in advance should I book a flight to Region of Ontario?

You are more likely to see cheaper flights to Region of Ontario from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Region of Ontario for around $331 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. for as low as $250 on momondo.

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

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

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

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

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

Best Price Found

$106

Fastest flight time

1h 28m

Direct flights

Every day

Airports in Region of Ontario

3 airports
The best one-way flight to Region of Ontario from Washington, D.C. in the past 72 hours is $106. The best round-trip flight deal from Washington, D.C. to Region of Ontario found on momondo in the last 72 hours is $220.
The fastest flight from Washington, D.C. to Region of Ontario takes 1h 28m
Direct flights go from Washington, D.C. to Region of Ontario every day.
There are 3 airports near Region of Ontario: Ottawa (YOW), Toronto Pearson Intl (YYZ), Toronto Island (YTZ)
  • When did momondo last update prices for flights from Washington, D.C. to Ontario?

    Prices for flights from Washington, D.C. to Ontario refresh daily.

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

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

    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 Washington, D.C. to Ontario.

  • What documentation or ID do you need to fly to Ontario?

    The required travel and health documents for your Ontario trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

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

Compare and see reviews for airlines that fly from Washington, D.C. to Region of Ontario with momondo
Airline
Rating
Free Cancellation
Price
Porter AirlinesPriceFrom $54Free CancellationRating
7.9
365 reviews
Search Porter Airlines flights
United AirlinesPriceFrom $127Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
Air CanadaPriceFrom $137Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
Air TransatPriceFrom $176Free CancellationRating
7.7
439 reviews
Search Air Transat flights
DeltaPriceFrom $242Free CancellationRating
7.9
7,961 reviews
Search Delta flights
American AirlinesPriceFrom $244Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
WestJetPriceFrom $278Free CancellationRating
7.2
3,095 reviews
Search WestJet flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to Ontario. Millions of users trust and use momondo every year so you are in good hands.

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?

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 Ontario from Washington, D.C..

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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1 adult
Fri 10/17
Fri 10/24

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