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Cheap flights from Washington, D.C. Reagan-National Airport to Ottawa from $151

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 9/23. 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

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
sáb., sep. 27 - vie., oct. 3
Air Canada Logo
12:55 pm - 2:26 pmDCA-YOW
1h 31mnonstop
Air Canada Logo
6:00 am - 10:20 amYOW-DCA
4h 20m1 stop
$429Air Canada
Find Deal
sáb., sep. 27 - vie., oct. 3
Air Canada Logo
9:40 am - 1:51 pmDCA-YOW
4h 11m1 stop
Air Canada Logo
6:00 am - 10:20 amYOW-DCA
4h 20m1 stop
$434Air Canada
Find Deal
sáb., sep. 27 - vie., oct. 3
Air Canada Logo
6:59 am - 1:04 pmDCA-YOW
6h 05m1 stop
Air Canada Logo
10:25 am - 12:08 pmYOW-DCA
1h 43mnonstop
$435Air Canada
Find Deal
vie., sep. 19 - lun., sep. 22
Air Canada Logo
8:40 pm - 1:34 amDCA-YOW
4h 54m1 stop
Air Canada Logo
11:05 am - 3:51 pmYOW-DCA
4h 46m1 stop
$440Air Canada
Find Deal
vie., sep. 26 - lun., oct. 6
Air Canada Logo
9:40 am - 1:51 pmDCA-YOW
4h 11m1 stop
Air Canada Logo
11:55 am - 6:04 pmYOW-DCA
6h 09m1 stop
$441Air Canada
Find Deal
mar., oct. 7 - vie., oct. 10
United Airlines Logo
7:00 am - 11:45 amDCA-YOW
4h 45m1 stop
United Airlines Logo
5:25 pm - 10:43 pmYOW-DCA
5h 18m1 stop
$459United Airlines
Find Deal
sáb., sep. 20 - sáb., sep. 27
United Airlines Logo
12:55 pm - 2:26 pmDCA-YOW
1h 31mnonstop
United Airlines Logo
10:25 am - 12:08 pmYOW-DCA
1h 43mnonstop
$488United Airlines
Find Deal
sáb., sep. 20 - sáb., sep. 27
United Airlines Logo
7:25 am - 9:35 pmDCA-YOW
14h 10m1 stop
United Airlines Logo
10:25 am - 12:08 pmYOW-DCA
1h 43mnonstop
$498United Airlines
Find Deal
sáb., sep. 20 - sáb., sep. 27
Logo
7:00 am - 10:05 pmDCA-YOW
15h 05m1 stop
Logo
5:15 am - 9:37 pmYOW-DCA
16h 22m2 stops
$610
Find Deal
dom., sep. 28 - dom., oct. 5

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
Sep 27
DCA12:55 pmWashington, D.C. Reagan-National
1h 31m
YOW2:26 pmOttawa
Oct 3
YOW10:25 amOttawa
1h 43m
DCA12:08 pmWashington, D.C. Reagan-National
$424
Find similar
Air Canada
Sep 27
DCA12:55 pmWashington, D.C. Reagan-National
1h 31m
YOW2:26 pmOttawa
Oct 3
YOW6:00 amOttawa
4h 20m
1 stop
DCA10:20 amWashington, D.C. Reagan-National
$429
Find similar
Air Canada
Sep 27
DCA9:40 amWashington, D.C. Reagan-National
4h 11m
1 stop
YOW1:51 pmOttawa
Oct 3
YOW6:00 amOttawa
4h 20m
1 stop
DCA10:20 amWashington, D.C. Reagan-National
$434
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
Sep 20
DCA7:00 amWashington, D.C. Reagan-National
4h 45m
1 stop
YOW11:45 amOttawa
Sep 27
YOW5:25 pmOttawa
5h 18m
1 stop
DCA10:43 pmWashington, D.C. Reagan-National
$459
Find similar
United Airlines
Sep 20
DCA12:55 pmWashington, D.C. Reagan-National
1h 31m
YOW2:26 pmOttawa
Sep 27
YOW10:25 amOttawa
1h 43m
DCA12:08 pmWashington, D.C. Reagan-National
$488
Find similar
United Airlines
Sep 20
DCA7:25 amWashington, D.C. Reagan-National
14h 10m
1 stop
YOW9:35 pmOttawa
Sep 27
YOW10:25 amOttawa
1h 43m
DCA12:08 pmWashington, D.C. Reagan-National
$498
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 agosto 25, 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

sáb. 9/27

12:55 pm-2:26 pm

Nonstop1h 31m

Ottawa

vie. 10/3

10:25 am-12:08 pm

Nonstop1h 43m

$424

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

sáb. 9/27

12:55 pm-2:26 pm

Nonstop1h 31m

Ottawa

vie. 10/3

6:00 am-10:20 am

1 stop4h 20m

$429

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

sáb. 9/27

9:40 am-1:51 pm

1 stop4h 11m

Ottawa

vie. 10/3

6:00 am-10:20 am

1 stop4h 20m

$434

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

vie. 9/19

6:59 am-1:04 pm

1 stop6h 05m

Ottawa

lun. 9/22

10:25 am-12:08 pm

Nonstop1h 43m

$435

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

vie. 9/26

8:40 pm-1:34 am

1 stop4h 54m

Ottawa

lun. 10/6

11:05 am-3:51 pm

1 stop4h 46m

$440

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

mar. 10/7

9:40 am-1:51 pm

1 stop4h 11m

Ottawa

vie. 10/10

11:55 am-6:04 pm

1 stop6h 09m

$441

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

sáb. 9/20

7:00 am-11:45 am

1 stop4h 45m

Ottawa

sáb. 9/27

5:25 pm-10:43 pm

1 stop5h 18m

$459

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

sáb. 9/20

12:55 pm-2:26 pm

Nonstop1h 31m

Ottawa

sáb. 9/27

10:25 am-12:08 pm

Nonstop1h 43m

$488

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

sáb. 9/20

7:25 am-9:35 pm

1 stop14h 10m

Ottawa

sáb. 9/27

10:25 am-12:08 pm

Nonstop1h 43m

$498

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

dom. 9/28

7:00 am-10:05 pm

1 stop15h 05m

Ottawa

dom. 10/5

5:15 am-9:37 pm

2 stops16h 22m

$610

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 September is another great option to travel to Ottawa, with average flight prices from Washington, D.C. Reagan-National Airport averaging around $218.

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 $422. 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 $506.

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 $439. 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 afternoon when prices are $658 on average. Flights to Ottawa from Washington, D.C. Reagan-National Airport in the afternoon 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 August 2025, prices for Washington, D.C. Reagan-National Airport to Ottawa flights are approximately 7% 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

Mon, Tue, Wed, Fri, Sat and Sun

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 $388.
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 on Monday, Tuesday, Wednesday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
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 $174Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
United AirlinesPriceFrom $209Free CancellationRating
7.4
8,940 reviews
Search United Airlines flights

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

    United Airlines operates around 5 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 $209 round-trip. United Airlines has been scored 7.4/10 in 8,940 reviews.

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

    Air Canada (7.1/10 from 10,000 reviews) operates around 5 flights from Washington, D.C. Reagan-National Airport to Ottawa in any given week. The average Air Canada airfare for this route is around $424, with deals from around $174 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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