Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Washington, D.C. to Ottawa from $110

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 Ottawa departing on 12/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Washington, D.C. to Ottawa

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:30 am - 5:25 pmBWI-YOW
10h 55m1 stop
Multiple Airlines Logo
7:00 am - 9:22 amYOW-BWI
26h 22m3 stops
$234Multiple Airlines
Find Deal
Wed, Dec 10 - Sun, Dec 14
Multiple Airlines Logo
8:30 pm - 12:25 amBWI-YOW
27h 55m2 stops
Multiple Airlines Logo
7:00 am - 9:22 amYOW-BWI
26h 22m3 stops
$263Multiple Airlines
Find Deal
Wed, Dec 10 - Sun, Dec 14
Multiple Airlines Logo
10:00 pm - 11:58 pmBWI-YOW
25h 58m1 stop
Multiple Airlines Logo
7:00 am - 10:57 pmYOW-BWI
15h 57m1 stop
$269Multiple Airlines
Find Deal
Mon, Jan 5 - Sun, Jan 11
Multiple Airlines Logo
9:20 pm - 6:26 pmBWI-YOW
21h 06m2 stops
Multiple Airlines Logo
9:30 am - 8:25 pmYOW-BWI
10h 55m1 stop
$275Multiple Airlines
Find Deal
Tue, Jan 6 - Fri, Jan 9
Porter Airlines Logo
6:30 pm - 10:29 pmIAD-YOW
3h 59m1 stop
Porter Airlines Logo
1:20 pm - 5:14 pmYOW-IAD
3h 54m1 stop
$325Porter Airlines
Find Deal
Thu, Dec 4 - Mon, Dec 8
Porter Airlines Logo
11:40 am - 3:04 pmIAD-YOW
3h 24m1 stop
Porter Airlines Logo
1:20 pm - 5:14 pmYOW-IAD
3h 54m1 stop
$326Porter Airlines
Find Deal
Fri, Nov 28 - Mon, Dec 1
Air Canada Logo
12:55 pm - 2:30 pmDCA-YOW
1h 35mnonstop
Air Canada Logo
10:30 am - 12:19 pmYOW-DCA
1h 49mnonstop
$376Air Canada
Find Deal
Thu, Dec 4 - Mon, Dec 8
Air Canada Logo
6:00 am - 9:40 amDCA-YOW
3h 40m1 stop
Air Canada Logo
10:30 am - 12:19 pmYOW-DCA
1h 49mnonstop
$378Air Canada
Find Deal
Thu, Dec 4 - Mon, Dec 8
American Airlines Logo
10:04 am - 4:49 pmDCA-YOW
6h 45m1 stop
American Airlines Logo
6:45 am - 12:33 pmYOW-DCA
5h 48m1 stop
$537American Airlines
Find Deal
Fri, Nov 28 - Sat, Nov 29
American Airlines Logo
10:04 am - 4:51 pmDCA-YOW
6h 47m1 stop
American Airlines Logo
6:45 am - 12:40 pmYOW-DCA
5h 55m1 stop
$543American Airlines
Find Deal
Thu, Dec 4 - Thu, Dec 11

Porter Airlines flights from Washington, D.C. to Ottawa

Our best Porter Airlines deals on Washington, D.C. to Ottawa flight tickets
Porter Airlines
Dec 4
IAD6:30 pmWashington, D.C. Dulles Intl
3h 59m
1 stop
YOW10:29 pmOttawa
Dec 8
YOW1:20 pmOttawa
3h 54m
1 stop
IAD5:14 pmWashington, D.C. Dulles Intl
$325
Find similar
Porter Airlines
Nov 28
IAD11:40 amWashington, D.C. Dulles Intl
3h 24m
1 stop
YOW3:04 pmOttawa
Dec 1
YOW1:20 pmOttawa
3h 54m
1 stop
IAD5:14 pmWashington, D.C. Dulles Intl
$326
Find similar
Porter Airlines
Dec 3
IAD11:40 amWashington, D.C. Dulles Intl
5h 49m
1 stop
YOW5:29 pmOttawa
Dec 10
YOW6:50 amOttawa
3h 34m
1 stop
IAD10:24 amWashington, D.C. Dulles Intl
$327
Find similar

Air Canada flights from Washington, D.C. to Ottawa

Our best Air Canada deals on Washington, D.C. to Ottawa flight tickets
Air Canada
Dec 4
DCA12:55 pmWashington, D.C. Reagan-National
1h 35m
YOW2:30 pmOttawa
Dec 8
YOW10:30 amOttawa
1h 49m
DCA12:19 pmWashington, D.C. Reagan-National
$376
Find similar
Air Canada
Dec 4
DCA6:00 amWashington, D.C. Reagan-National
3h 40m
1 stop
YOW9:40 amOttawa
Dec 8
YOW10:30 amOttawa
1h 49m
DCA12:19 pmWashington, D.C. Reagan-National
$378
Find similar
Air Canada
Dec 4
DCA6:00 amWashington, D.C. Reagan-National
3h 42m
1 stop
YOW9:42 amOttawa
Dec 8
YOW10:30 amOttawa
1h 49m
DCA12:19 pmWashington, D.C. Reagan-National
$380
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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 November 6, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Wed 12/10

6:30 am-5:25 pm

1 stop10h 55m

Ottawa

Sun 12/14

7:00 am-9:22 am

3 stops26h 22m

$234

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Wed 12/10

8:30 pm-12:25 am

2 stops27h 55m

Ottawa

Sun 12/14

7:00 am-9:22 am

3 stops26h 22m

$263

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Mon 1/5

10:00 pm-11:58 pm

1 stop25h 58m

Ottawa

Sun 1/11

7:00 am-10:57 pm

1 stop15h 57m

$269

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Tue 1/6

9:20 pm-6:26 pm

2 stops21h 06m

Ottawa

Fri 1/9

9:30 am-8:25 pm

1 stop10h 55m

$275

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Thu 12/4

6:30 pm-10:29 pm

1 stop3h 59m

Ottawa

Mon 12/8

1:20 pm-5:14 pm

1 stop3h 54m

$325

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Fri 11/28

11:40 am-3:04 pm

1 stop3h 24m

Ottawa

Mon 12/1

1:20 pm-5:14 pm

1 stop3h 54m

$326

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 12/4

12:55 pm-2:30 pm

Nonstop1h 35m

Ottawa

Mon 12/8

10:30 am-12:19 pm

Nonstop1h 49m

$376

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 12/4

6:00 am-9:40 am

1 stop3h 40m

Ottawa

Mon 12/8

10:30 am-12:19 pm

Nonstop1h 49m

$378

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Fri 11/28

10:04 am-4:49 pm

1 stop6h 45m

Ottawa

Sat 11/29

6:45 am-12:33 pm

1 stop5h 48m

$537

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 12/4

10:04 am-4:51 pm

1 stop6h 47m

Ottawa

Thu 12/11

6:45 am-12:40 pm

1 stop5h 55m

$543

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Ottawa from

How to get the cheapest flight ticket from Washington, D.C. 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 typical price of a round-trip flight between Washington, D.C. and Ottawa?

What is the cheapest month to fly to Ottawa?

In general, January is the cheapest month to fly from Washington, D.C. to Ottawa. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $257. The month of April is another great option to travel to Ottawa, with average flight prices from Washington, D.C. averaging around $344.

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

The cheapest day to depart from Washington, D.C. to Ottawa is on a Monday. Travelers who choose to depart for Ottawa on a Monday will often find tickets for as low as $427. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to Ottawa on Thursday is $508.

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. to Ottawa when you can find flight prices for as low as $448. 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. 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. to Ottawa flight route?

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

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

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

You could potentially save up to 32% on your flight if you consider stops on a Washington, D.C. to Ottawa flight.

How have Washington, D.C. to Ottawa flight prices changed over time?

As of November 2025, prices for Washington, D.C. to Ottawa flights are approximately 2% more expensive when compared to flights at the same time last year.

When to book flights from Washington, D.C. to Ottawa

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. 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. to Ottawa (WAS to YOW) flight deals and tips

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

Best Price Found

$256

Fastest flight time

1h 32m

Direct flights

Every day

Airports in Ottawa

1 airport
The best one-way flight to Ottawa from Washington, D.C. in the past 72 hours is $256. The best round-trip flight deal from Washington, D.C. to Ottawa found on momondo in the last 72 hours is $298.
The fastest flight from Washington, D.C. to Ottawa takes 1h 32m
Direct flights go from Washington, D.C. to Ottawa every day.
There is 1 airport near Ottawa: Ottawa (YOW)
Search flight deals

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

    The straight-line distance from Washington, D.C. to Ottawa is 454.6 mi. 1h 35m is a normal flight duration for this route.

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

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

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

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

    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. to Ottawa Airport.

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

    The required travel and health documents for your Ottawa Airport 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 Ottawa Airport. 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 Ottawa?

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

Best airlines flying from Washington, D.C. to Ottawa

Compare and see reviews for airlines that fly from Washington, D.C. to Ottawa with momondo
Airline
Rating
Free Cancellation
Price
Porter AirlinesPriceFrom $185Free CancellationRating
8.0
387 reviews
Search Porter Airlines flights
Air CanadaPriceFrom $206Free CancellationRating
7.1
10,410 reviews
Search Air Canada flights
United AirlinesPriceFrom $218Free CancellationRating
7.4
9,003 reviews
Search United Airlines flights

  • United Airlines Flights From Washington, D.C. to Ottawa

    The lowest priced United Airlines flight from Washington, D.C. to Ottawa from the last 72 hours was $218. Generally, United Airlines has 27 flights on this route every week with an average price of $536. United Airlines is rated 7.4/10 by our users.

  • Air Canada Flights From Washington, D.C. to Ottawa

    Across 10,410 Air Canada reviews on momondo, the average score is 7.1/10. Air Canada flies from Washington, D.C. to Ottawa about 27 times each week, with ticket deals ranging from $206 to $464. Price data is based on momondo 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
Calabogie
Brockville
Petawawa
Pembroke
Smiths Falls
Perth
Prescott
Winchester
Wakefield

Why use momondo?

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

It is quick and easy to find Washington, D.C. to Ottawa flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ottawa that suits you.

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

All flight searches from Washington, D.C. to Ottawa 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 Ottawa?

Once you have performed a search for Washington, D.C. to Ottawa flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to Ottawa 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.

An easier way to manage your Ottawa 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 12/6
Sat 12/13
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Canada