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Cheap flights from Washington, D.C. Reagan-National Airport to Ontario from $107

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. Reagan-National Airport to Ontario departing on 12/2. 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. Reagan-National Airport to Ontario

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
9:40 am - 11:17 amDCA-YYZ
1h 37mnonstop
Air Canada Logo
8:15 am - 12:19 pmYYZ-DCA
4h 04m1 stop
$223Air Canada
Find Deal
Thu, Dec 4 - Sun, Dec 7
Air Canada Logo
6:00 am - 10:49 amDCA-YYZ
4h 49m1 stop
Air Canada Logo
8:15 am - 12:19 pmYYZ-DCA
4h 04m1 stop
$224Air Canada
Find Deal
Thu, Dec 4 - Sun, Dec 7
Air Canada Logo
6:59 am - 8:35 amDCA-YYZ
1h 36mnonstop
Air Canada Logo
8:15 am - 12:19 pmYYZ-DCA
4h 04m1 stop
$227Air Canada
Find Deal
Thu, Dec 4 - Sun, Dec 7
Air Canada Logo
6:00 am - 10:49 amDCA-YYZ
4h 49m1 stop
Air Canada Logo
8:15 am - 12:19 pmYYZ-DCA
4h 04m1 stop
$229Air Canada
Find Deal
Thu, Dec 4 - Sun, Dec 7
Delta Logo
5:31 pm - 11:11 pmDCA-YYZ
5h 40m1 stop
Delta Logo
2:09 pm - 6:40 pmYYZ-DCA
4h 31m1 stop
$289Delta
Find Deal
Mon, Dec 8 - Wed, Dec 10
American Airlines Logo
10:04 am - 11:54 amDCA-YYZ
1h 50mnonstop
American Airlines Logo
12:34 pm - 8:40 pmYYZ-DCA
8h 06m1 stop
$301American Airlines
Find Deal
Wed, Nov 26 - Sat, Nov 29
Delta Logo
6:02 am - 12:00 pmDCA-YUL
5h 58m1 stop
Delta Logo
4:45 pm - 11:08 pmYUL-DCA
6h 23m1 stop
$374Delta
Find Deal
Sun, Dec 7 - Fri, Dec 12
American Airlines Logo
6:46 am - 2:56 pmDCA-YOW
8h 10m2 stops
American Airlines Logo
6:45 am - 12:37 pmYOW-DCA
5h 52m1 stop
$553American Airlines
Find Deal
Thu, Dec 25 - Wed, Dec 31
Porter Airlines Logo
10:10 am - 4:51 pmDCA-YOW
6h 41m1 stop
Porter Airlines Logo
6:45 am - 12:37 pmYOW-DCA
5h 52m1 stop
$672Porter Airlines
Find Deal
Wed, Dec 24 - Tue, Dec 30
United Airlines Logo
8:40 pm - 8:46 amDCA-YXU
12h 06m1 stop
United Airlines Logo
9:25 am - 9:59 amYXU-DCA
24h 34m2 stops
$742United Airlines
Find Deal
Fri, Dec 19 - Fri, Dec 26

American Airlines flights from Washington, D.C. Reagan-National Airport to Region of Ontario

Our best American Airlines deals on Washington, D.C. Reagan-National Airport to Region of Ontario flight tickets
American Airlines
Nov 26
DCA10:04 amWashington, D.C. Reagan-National
1h 50m
YYZ11:54 amToronto Pearson Intl
Nov 29
YYZ12:34 pmToronto Pearson Intl
8h 06m
1 stop
DCA8:40 pmWashington, D.C. Reagan-National
$301
Find similar
American Airlines
Nov 18
DCA2:55 pmWashington, D.C. Reagan-National
1h 40m
YYZ4:35 pmToronto Pearson Intl
Nov 22
YYZ5:16 pmToronto Pearson Intl
1h 44m
DCA7:00 pmWashington, D.C. Reagan-National
$307
Find similar
American Airlines
Nov 11
DCA10:00 amWashington, D.C. Reagan-National
9h 04m
1 stop
YYZ7:04 pmToronto Pearson Intl
Nov 18
YYZ10:57 amToronto Pearson Intl
1h 36m
DCA12:33 pmWashington, D.C. Reagan-National
$480
Find similar

Air Canada flights from Washington, D.C. Reagan-National Airport to Region of Ontario

Our best Air Canada deals on Washington, D.C. Reagan-National Airport to Region of Ontario flight tickets
Air Canada
Dec 4
DCA9:40 amWashington, D.C. Reagan-National
1h 37m
YYZ11:17 amToronto Pearson Intl
Dec 7
YYZ8:15 amToronto Pearson Intl
4h 04m
1 stop
DCA12:19 pmWashington, D.C. Reagan-National
$223
Find similar
Air Canada
Dec 4
DCA6:00 amWashington, D.C. Reagan-National
4h 49m
1 stop
YYZ10:49 amToronto Pearson Intl
Dec 7
YYZ8:15 amToronto Pearson Intl
4h 04m
1 stop
DCA12:19 pmWashington, D.C. Reagan-National
$224
Find similar
Air Canada
Dec 4
DCA6:59 amWashington, D.C. Reagan-National
1h 36m
YYZ8:35 amToronto Pearson Intl
Dec 7
YYZ8:15 amToronto Pearson Intl
4h 04m
1 stop
DCA12:19 pmWashington, D.C. Reagan-National
$227
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National Airport 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 November 4, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Thu 12/4

9:40 am-11:17 am

Nonstop1h 37m

Toronto Pearson Intl

Sun 12/7

8:15 am-12:19 pm

1 stop4h 04m

$223

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Thu 12/4

6:00 am-10:49 am

1 stop4h 49m

Toronto Pearson Intl

Sun 12/7

8:15 am-12:19 pm

1 stop4h 04m

$224

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Thu 12/4

6:59 am-8:35 am

Nonstop1h 36m

Toronto Pearson Intl

Sun 12/7

8:15 am-12:19 pm

1 stop4h 04m

$227

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Thu 12/4

6:00 am-10:49 am

1 stop4h 49m

Toronto Pearson Intl

Sun 12/7

8:15 am-12:19 pm

1 stop4h 04m

$229

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Mon 12/8

5:31 pm-11:11 pm

1 stop5h 40m

Toronto Pearson Intl

Wed 12/10

2:09 pm-6:40 pm

1 stop4h 31m

$289

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Wed 11/26

10:04 am-11:54 am

Nonstop1h 50m

Toronto Pearson Intl

Sat 11/29

12:34 pm-8:40 pm

1 stop8h 06m

$301

Washington, D.C.Montreal

DCA - YUL

DCAYUL

Washington, D.C. Reagan-National

Sun 12/7

6:02 am-12:00 pm

1 stop5h 58m

Montreal Pierre Elliott Trudeau Intl

Fri 12/12

4:45 pm-11:08 pm

1 stop6h 23m

$374

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 12/25

6:46 am-2:56 pm

2 stops8h 10m

Ottawa

Wed 12/31

6:45 am-12:37 pm

1 stop5h 52m

$553

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Wed 12/24

10:10 am-4:51 pm

1 stop6h 41m

Ottawa

Tue 12/30

6:45 am-12:37 pm

1 stop5h 52m

$672

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Fri 12/19

8:40 pm-8:46 am

1 stop12h 06m

London

Fri 12/26

9:25 am-9:59 am

2 stops24h 34m

$742

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. Reagan-National Airport 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 April is, on average, the cheapest month to fly to Region of Ontario from Washington, D.C. Reagan-National Airport, with most prices found around $255. If you aren’t able to travel during the month of April, then book flights to Region of Ontario from Washington, D.C. Reagan-National Airport during March instead. Flights to Region of Ontario in March, while not as cheap as those in April, still average around $256.

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

According to our data, Thursday is the cheapest day to fly to Region of Ontario from Washington, D.C. Reagan-National Airport. The lowest ticket price found for a Thursday departure recently was $506. 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. Reagan-National Airport to Region of Ontario on a Monday will generally be more expensive and average around $744. 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 at noon. momondo users have found flights departing from Washington, D.C. Reagan-National Airport to Region of Ontario at noon for as low as $377. 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 morning are often more expensive with an average ticket price of $601.

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

Fly from Washington, D.C. Reagan-National to Toronto Pearson Intl for the best Washington, D.C. Reagan-National - 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. Reagan-National Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Region of Ontario for around $355 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. Reagan-National Airport for as low as $205 on momondo.

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

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

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

Cheap Washington, D.C. Reagan-National Airport to Region of Ontario flight deals and tips

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

Best Price Found

$202

Fastest flight time

1h 32m

Direct flights

Every day

Airports in Region of Ontario

2 airports
The best one-way flight to Region of Ontario from Washington, D.C. Reagan-National Airport in the past 72 hours is $202. The best round-trip flight deal from Washington, D.C. Reagan-National Airport to Region of Ontario found on momondo in the last 72 hours is $298.
The fastest flight from Washington, D.C. Reagan-National Airport to Region of Ontario takes 1h 32m
Direct flights go from Washington, D.C. Reagan-National Airport to Region of Ontario every day.
There are 2 airports near Region of Ontario: Ottawa (YOW), Toronto Pearson Intl (YYZ)
Search flight deals

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

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

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

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

    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 Washington, D.C. Reagan-National Airport to Ontario.

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

    The travel and health documents you'll need for your trip to Ontario 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 Ontario. 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 Washington, D.C. Reagan-National Airport to Region of Ontario?

Best airlines flying from Washington, D.C. Reagan-National Airport to Region of Ontario

Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to Region of Ontario with momondo
Airline
Rating
Free Cancellation
Price
Porter AirlinesPriceFrom $103Free CancellationRating
8.0
387 reviews
Search Porter Airlines flights
United AirlinesPriceFrom $132Free CancellationRating
7.4
8,999 reviews
Search United Airlines flights
Air CanadaPriceFrom $193Free CancellationRating
7.1
10,402 reviews
Search Air Canada flights
American AirlinesPriceFrom $253Free CancellationRating
7.2
11,040 reviews
Search American Airlines flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Ontario for you.

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

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

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?

Of course. momondo tracks the price of Washington, D.C. to Ontario 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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