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Cheap flights from Washington, D.C. Reagan-National Airport to Ottawa from $180

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 Ottawa 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. Reagan-National Airport to Ottawa

Cheap round-trip flights

Multiple Airlines Logo
6:59 am - 7:12 pmDCA-YOW
12h 13m1 stop
Multiple Airlines Logo
5:40 am - 7:45 pmYOW-DCA
14h 05m1 stop
$337Multiple Airlines
Find Deal
Thu, Oct 30 - Thu, Nov 6
Multiple Airlines Logo
6:00 am - 7:12 pmDCA-YOW
13h 12m2 stops
Multiple Airlines Logo
5:40 am - 6:05 pmYOW-DCA
12h 25m1 stop
$343Multiple Airlines
Find Deal
Thu, Oct 30 - Thu, Nov 6
Air Canada Logo
12:55 pm - 2:30 pmDCA-YOW
1h 35mnonstop
Air Canada Logo
10:30 am - 12:19 pmYOW-DCA
1h 49mnonstop
$362Air Canada
Find Deal
Thu, Oct 30 - Thu, Nov 6
Air Canada Logo
6:00 am - 9:42 amDCA-YOW
3h 42m1 stop
Air Canada Logo
10:30 am - 12:19 pmYOW-DCA
1h 49mnonstop
$378Air Canada
Find Deal
Wed, Oct 29 - Wed, Nov 5
Air Canada Logo
6:00 am - 9:42 amDCA-YOW
3h 42m1 stop
Air Canada Logo
10:50 am - 3:31 pmYOW-DCA
4h 41m1 stop
$379Air Canada
Find Deal
Wed, Oct 29 - Wed, Nov 5
Multiple Airlines Logo
11:05 am - 12:42 amDCA-YOW
13h 37m2 stops
Multiple Airlines Logo
10:50 am - 3:31 pmYOW-DCA
4h 41m1 stop
$399Multiple Airlines
Find Deal
Wed, Oct 29 - Wed, Nov 5
Air Canada Logo
12:55 pm - 2:26 pmDCA-YOW
1h 31mnonstop
Air Canada Logo
10:25 am - 12:08 pmYOW-DCA
1h 43mnonstop
$424Air Canada
Find Deal
Tue, Oct 14 - Thu, Oct 16
United Airlines Logo
10:33 am - 4:43 pmDCA-YOW
6h 10m1 stop
United Airlines Logo
6:05 am - 12:19 pmYOW-DCA
6h 14m1 stop
$449United Airlines
Find Deal
Tue, Oct 7 - Fri, Oct 10
United Airlines Logo
12:55 pm - 2:26 pmDCA-YOW
1h 31mnonstop
United Airlines Logo
5:25 pm - 10:43 pmYOW-DCA
5h 18m1 stop
$464United Airlines
Find Deal
Mon, Oct 20 - Mon, Oct 20
United Airlines Logo
12:00 pm - 5:06 pmDCA-YOW
5h 06m1 stop
United Airlines Logo
10:25 am - 12:08 pmYOW-DCA
1h 43mnonstop
$487United Airlines
Find Deal
Wed, Oct 22 - Sat, Oct 25

Air Canada flights from Washington, D.C. Reagan-National Airport to Ottawa

Our best Air Canada deals on Washington, D.C. Reagan-National Airport to Ottawa flight tickets
Air Canada
Oct 30
DCA12:55 pmWashington, D.C. Reagan-National
1h 35m
YOW2:30 pmOttawa
Nov 6
YOW10:30 amOttawa
1h 49m
DCA12:19 pmWashington, D.C. Reagan-National
$362
Find similar
Air Canada
Oct 29
DCA6:00 amWashington, D.C. Reagan-National
3h 42m
1 stop
YOW9:42 amOttawa
Nov 5
YOW10:30 amOttawa
1h 49m
DCA12:19 pmWashington, D.C. Reagan-National
$378
Find similar
Air Canada
Oct 29
DCA6:00 amWashington, D.C. Reagan-National
3h 42m
1 stop
YOW9:42 amOttawa
Nov 5
YOW10:50 amOttawa
4h 41m
1 stop
DCA3:31 pmWashington, D.C. Reagan-National
$379
Find similar

United Airlines flights from Washington, D.C. Reagan-National Airport to Ottawa

Our best United Airlines deals on Washington, D.C. Reagan-National Airport to Ottawa flight tickets
United Airlines
Oct 7
DCA10:33 amWashington, D.C. Reagan-National
6h 10m
1 stop
YOW4:43 pmOttawa
Oct 10
YOW6:05 amOttawa
6h 14m
1 stop
DCA12:19 pmWashington, D.C. Reagan-National
$449
Find similar
United Airlines
Oct 20
DCA12:55 pmWashington, D.C. Reagan-National
1h 31m
YOW2:26 pmOttawa
Oct 20
YOW5:25 pmOttawa
5h 18m
1 stop
DCA10:43 pmWashington, D.C. Reagan-National
$464
Find similar
United Airlines
Oct 22
DCA12:00 pmWashington, D.C. Reagan-National
5h 06m
1 stop
YOW5:06 pmOttawa
Oct 25
YOW10:25 amOttawa
1h 43m
DCA12:08 pmWashington, D.C. Reagan-National
$487
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National Airport to Ottawa 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 16, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 10/30

6:59 am-7:12 pm

1 stop12h 13m

Ottawa

Thu 11/6

5:40 am-7:45 pm

1 stop14h 05m

$337

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 10/30

6:00 am-7:12 pm

2 stops13h 12m

Ottawa

Thu 11/6

5:40 am-6:05 pm

1 stop12h 25m

$343

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 10/30

12:55 pm-2:30 pm

Nonstop1h 35m

Ottawa

Thu 11/6

10:30 am-12:19 pm

Nonstop1h 49m

$362

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Wed 10/29

6:00 am-9:42 am

1 stop3h 42m

Ottawa

Wed 11/5

10:30 am-12:19 pm

Nonstop1h 49m

$378

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Wed 10/29

6:00 am-9:42 am

1 stop3h 42m

Ottawa

Wed 11/5

10:50 am-3:31 pm

1 stop4h 41m

$379

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Wed 10/29

11:05 am-12:42 am

2 stops13h 37m

Ottawa

Wed 11/5

10:50 am-3:31 pm

1 stop4h 41m

$399

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Tue 10/14

12:55 pm-2:26 pm

Nonstop1h 31m

Ottawa

Thu 10/16

10:25 am-12:08 pm

Nonstop1h 43m

$424

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Tue 10/7

10:33 am-4:43 pm

1 stop6h 10m

Ottawa

Fri 10/10

6:05 am-12:19 pm

1 stop6h 14m

$449

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Mon 10/20

12:55 pm-2:26 pm

Nonstop1h 31m

Ottawa

Mon 10/20

5:25 pm-10:43 pm

1 stop5h 18m

$464

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Wed 10/22

12:00 pm-5:06 pm

1 stop5h 06m

Ottawa

Sat 10/25

10:25 am-12:08 pm

Nonstop1h 43m

$487

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 Ottawa from

How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport to Ottawa

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 Ottawa?

In general, March is the cheapest month to fly from Washington, D.C. Reagan-National Airport to Ottawa. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $174. The month of November is another great option to travel to Ottawa, with average flight prices from Washington, D.C. Reagan-National Airport averaging around $251.

What is the cheapest day to depart on your flight to Ottawa?

The cheapest day to depart from Washington, D.C. Reagan-National Airport to Ottawa is on a Saturday. Travelers who choose to depart for Ottawa on a Saturday will often find tickets for as low as $418. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Ottawa on Sunday is $505.

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

In the morning is the cheapest time of day to fly from Washington, D.C. Reagan-National Airport to Ottawa when you can find flight prices for as low as $438. Flying to Ottawa in the morning is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $678 on average. Flights to Ottawa from Washington, D.C. Reagan-National Airport in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

Fly from Washington, D.C. Reagan-National to Ottawa for the best Washington, D.C. Reagan-National - Ottawa flight prices

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

There are 4 cabin classes available to choose from on Washington, D.C. Reagan-National to Ottawa flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Washington, D.C. Reagan-National Airport to Ottawa flight prices changed over time?

As of September 2025, prices for Washington, D.C. Reagan-National Airport to Ottawa flights are approximately 41% cheaper when compared to flights at the same time last year.

When to book flights from Washington, D.C. Reagan-National Airport to Ottawa

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Reagan-National Airport to Ottawa according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Reagan-National Airport to Ottawa (DCA to YOW) flight deals and tips

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

Best Price Found

$198

Fastest flight time

1h 31m

Direct flights

Every day

Airports in Ottawa

1 airport
The best one-way flight to Ottawa from Washington, D.C. Reagan-National Airport in the past 72 hours is $198. The best round-trip flight deal from Washington, D.C. Reagan-National Airport to Ottawa found on momondo in the last 72 hours is $357.
The fastest flight from Washington, D.C. Reagan-National Airport to Ottawa takes 1h 31m
Direct flights go from Washington, D.C. Reagan-National Airport to Ottawa every day.
There is 1 airport near Ottawa: Ottawa (YOW)
Search flight deals

  • How far is Washington, D.C. Reagan-National to Ottawa by plane?

    There are 458.3 mi between Washington, D.C. Reagan-National and Ottawa. Flights usually cover this in 1h 31m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Washington, D.C. Reagan-National Airport to Ottawa Airport were last updated today.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport to Ottawa Airport.

  • What documentation or ID do you need to fly to Ottawa Airport?

    The travel and health documents required for your trip to Ottawa Airport 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 Ottawa Airport. 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 Washington, D.C. Reagan-National Airport to Ottawa?

  • What is the most popular airline from Washington, D.C. Reagan-National Airport to Ottawa?

Best airlines flying from Washington, D.C. Reagan-National Airport to Ottawa

Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to Ottawa with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $181Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
United AirlinesPriceFrom $218Free CancellationRating
7.4
8,924 reviews
Search United Airlines flights

  • United Airlines Flights From Washington, D.C. Reagan-National Airport to Ottawa

    United Airlines operates around 7 flights from Washington, D.C. Reagan-National Airport to Ottawa every week. The average price of these flights found in the last 72 hours has been $523, but momondo users have found United Airlines deals from Washington, D.C. Reagan-National Airport to Ottawa from as low as $218 round-trip. United Airlines has been scored 7.4/10 in 8,924 reviews.

  • Air Canada Flights From Washington, D.C. Reagan-National Airport to Ottawa

    Air Canada (7.1/10 from 10,000 reviews) operates around 7 flights from Washington, D.C. Reagan-National Airport to Ottawa in any given week. The average Air Canada airfare for this route is around $426, with deals from around $181 rare but found on momondo. Referenced prices are for round-trip Washington, D.C. Reagan-National Airport to Ottawa flight searches in the last 72 hours.

Traveling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Smiths Falls
Calabogie
Brockville
Pembroke
Petawawa
Perth
Prescott
Winchester
Wakefield

Why use momondo?

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

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 Ottawa for you.

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

Flights from Washington, D.C. to Ottawa 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 Washington, D.C. to Ottawa?

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 Ottawa from Washington, D.C..

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

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