What airlines fly to Washington, D.C.?

Air Canada, United Airlines and Delta are the top three most popular airlines that fly to Washington, D.C. from Ottawa according to our data. Air Canada is the first choice among our users, with 79% of people opting to fly with this airline when traveling to Washington, D.C.. Keep in mind that there are 3 different airlines that fly to Washington, D.C. on a routine basis, so you have a few additional options to choose from.

How many flights depart from Ottawa to Washington, D.C. on average per day?

The number of flights available between Ottawa and Washington, D.C. is 5 per day as of November 2026. The most frequent departure time is 9:00AM, with 60% of daily flights leaving at noon.

How many flights depart from Ottawa to Washington, D.C. on average per week?

The number of flights available between Ottawa and Washington, D.C. is 35 per week as of November 2026. The most frequent departure day is Mon, with 17% of weekly flights leaving on this day.

What is the cheapest airline that flies from Ottawa to Washington, D.C.?

Air Canada, United Airlines, and Porter Airlines are the most popular carriers operating from Ottawa to Washington, D.C.

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

Prices for flights from Ottawa Airport to Washington, D.C. are refreshed on a daily basis.

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

As of November 2026, there are 2 operators available to choose from for flights from Ottawa Airport to Washington, D.C..

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

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 Ottawa Airport to Washington, D.C..

What documentation or ID do you need to fly to Washington, D.C.?

The travel and health documents you'll need for your trip to Washington, D.C. 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 Washington, D.C.. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$203 Cheap Flights from Ottawa to Washington, D.C. in 2026/27

Discover deals from 900+ travel sites with momondo.

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

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:00 am - 3:24 pmYOW Ottawa-DCA Washington, D.C. Reagan-National

6h 24m1 stop Montreal Pierre Elliott Trudeau Intl

6:00 am - 11:37 amDCA Washington, D.C. Reagan-National-YOW Ottawa

5h 37m1 stop Montreal Pierre Elliott Trudeau Intl

$340Air Canada

Thu, Dec 17 - Thu, Dec 24

6:00 am - 7:22 amYOW Ottawa-IAD Washington, D.C. Dulles Intl

25h 22m1 stop Newark

1:19 pm - 3:07 pmIAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 48mnonstop

$341United Airlines

Wed, Dec 2 - Thu, Dec 3

6:00 am - 7:22 amYOW Ottawa-IAD Washington, D.C. Dulles Intl

25h 22m1 stop Newark

1:19 pm - 3:07 pmIAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 48mnonstop

$342United Airlines

Wed, Dec 2 - Thu, Dec 3

10:30 am - 12:19 pmYOW Ottawa-DCA Washington, D.C. Reagan-National

1h 49mnonstop

12:55 pm - 2:29 pmDCA Washington, D.C. Reagan-National-YOW Ottawa

1h 34mnonstop

$352Air Canada

Wed, Dec 2 - Thu, Dec 3

12:15 pm - 5:45 pmYOW Ottawa-IAD Washington, D.C. Dulles Intl

5h 30m1 stop Toronto Island

11:20 am - 4:38 pmIAD Washington, D.C. Dulles Intl-YOW Ottawa

5h 18m1 stop Toronto Island

$354Porter Airlines

Fri, Dec 11 - Mon, Dec 14

10:50 am - 3:24 pmYOW Ottawa-DCA Washington, D.C. Reagan-National

4h 34m1 stop Montreal Pierre Elliott Trudeau Intl

11:05 am - 3:57 pmDCA Washington, D.C. Reagan-National-YOW Ottawa

4h 52m1 stop Montreal Pierre Elliott Trudeau Intl

$355Air Canada

Thu, Nov 19 - Mon, Nov 23

12:15 pm - 5:45 pmYOW Ottawa-IAD Washington, D.C. Dulles Intl

5h 30m1 stop Toronto Island

11:20 am - 5:05 pmIAD Washington, D.C. Dulles Intl-YOW Ottawa

5h 45m1 stop Toronto Island

$356Porter Airlines

Fri, Dec 11 - Mon, Jan 11

12:15 pm - 5:44 pmYOW Ottawa-IAD Washington, D.C. Dulles Intl

5h 29m1 stop Toronto Island

11:20 am - 4:37 pmIAD Washington, D.C. Dulles Intl-YOW Ottawa

5h 17m1 stop Toronto Island

$360Porter Airlines

Mon, Nov 16 - Wed, Nov 18

10:05 am - 3:45 pmYOW Ottawa-IAD Washington, D.C. Dulles Intl

5h 40m1 stop Toronto Pearson Intl

5:20 pm - 9:52 pmIAD Washington, D.C. Dulles Intl-YOW Ottawa

4h 32m1 stop Toronto Island

$360Air Canada

Thu, Nov 19 - Mon, Nov 23

6:00 am - 7:22 amYOW Ottawa-IAD Washington, D.C. Dulles Intl

25h 22m1 stop Newark

1:19 pm - 3:07 pmIAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 48mnonstop

$364United Airlines

Wed, Dec 2 - Thu, Dec 3

Cheap last minute flights

Enter your travel dates to find the best prices.

7:05 am - 8:11 pmYOW Ottawa-IAD Washington, D.C. Dulles Intl

13h 06m1 stop Fort Lauderdale

11:20 am - 4:37 pmIAD Washington, D.C. Dulles Intl-YOW Ottawa

5h 17m1 stop Toronto Island

$418Multiple Airlines

Mon, Nov 9 - Mon, Nov 16

7:05 am - 8:11 pmYOW Ottawa-IAD Washington, D.C. Dulles Intl

13h 06m1 stop Fort Lauderdale

9:06 pm - 5:24 pmIAD Washington, D.C. Dulles Intl-YOW Ottawa

20h 18m2 stops Atlanta Hartsfield-Jackson Fort Lauderdale

$532Multiple Airlines

Mon, Nov 9 - Mon, Nov 16

7:05 am - 8:11 pmYOW Ottawa-IAD Washington, D.C. Dulles Intl

13h 06m1 stop Fort Lauderdale

6:07 pm - 5:24 pmIAD Washington, D.C. Dulles Intl-YOW Ottawa

23h 17m2 stops Atlanta Hartsfield-Jackson Fort Lauderdale

$554Multiple Airlines

Mon, Nov 9 - Wed, Nov 11

8:00 am - 10:21 amYOW Ottawa-IAD Washington, D.C. Dulles Intl

26h 21m1 stop Orlando

6:07 pm - 11:34 pmIAD Washington, D.C. Dulles Intl-YOW Ottawa

29h 27m1 stop Fort Lauderdale

$556Multiple Airlines

Wed, Nov 4 - Sat, Nov 7

9:45 am - 11:48 amYOW Ottawa-IAD Washington, D.C. Dulles Intl

2h 03mnonstop

5:20 pm - 9:52 pmIAD Washington, D.C. Dulles Intl-YOW Ottawa

4h 32m1 stop Toronto Island

$586Air Canada

Mon, Nov 9 - Mon, Nov 16

9:45 am - 11:48 amYOW Ottawa-IAD Washington, D.C. Dulles Intl

2h 03mnonstop

1:19 pm - 3:07 pmIAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 48mnonstop

$695Air Canada

Mon, Nov 9 - Mon, Nov 16

9:45 am - 11:48 amYOW Ottawa-IAD Washington, D.C. Dulles Intl

2h 03mnonstop

5:20 pm - 9:52 pmIAD Washington, D.C. Dulles Intl-YOW Ottawa

4h 32m1 stop Toronto Island

$701Air Canada

Thu, Nov 5 - Sun, Nov 22

6:00 am - 8:24 amYOW Ottawa-DCA Washington, D.C. Reagan-National

26h 24m1 stop Newark

12:55 pm - 2:29 pmDCA Washington, D.C. Reagan-National-YOW Ottawa

1h 34mnonstop

$735United Airlines

Fri, Nov 6 - Sat, Nov 7

6:00 am - 7:20 amYOW Ottawa-IAD Washington, D.C. Dulles Intl

25h 20m1 stop Newark

1:19 pm - 3:07 pmIAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 48mnonstop

$735United Airlines

Fri, Nov 6 - Sat, Nov 7

9:45 am - 11:48 amYOW Ottawa-IAD Washington, D.C. Dulles Intl

2h 03mnonstop

10:35 pm - 1:11 pmIAD Washington, D.C. Dulles Intl-YOW Ottawa

14h 36m2 stops Cleveland Hopkins Intl Newark

$757United Airlines

Mon, Nov 9 - Mon, Nov 9

Cheap direct flights

Enter your travel dates to find the best prices.

10:30 am - 12:19 pmYOW Ottawa-DCA Washington, D.C. Reagan-National

1h 49mnonstop

12:55 pm - 2:29 pmDCA Washington, D.C. Reagan-National-YOW Ottawa

1h 34mnonstop

$352Air Canada

Wed, Dec 2 - Thu, Dec 3

10:30 am - 12:19 pmYOW Ottawa-DCA Washington, D.C. Reagan-National

1h 49mnonstop

12:55 pm - 2:29 pmDCA Washington, D.C. Reagan-National-YOW Ottawa

1h 34mnonstop

$361Air Canada

Fri, Dec 11 - Tue, Jan 12

10:30 am - 12:19 pmYOW Ottawa-DCA Washington, D.C. Reagan-National

1h 49mnonstop

12:55 pm - 2:29 pmDCA Washington, D.C. Reagan-National-YOW Ottawa

1h 34mnonstop

$365Air Canada

Wed, Dec 2 - Thu, Dec 3

10:30 am - 12:19 pmYOW Ottawa-DCA Washington, D.C. Reagan-National

1h 49mnonstop

12:55 pm - 2:29 pmDCA Washington, D.C. Reagan-National-YOW Ottawa

1h 34mnonstop

$368Air Canada

Wed, Dec 2 - Thu, Dec 3

9:45 am - 11:46 amYOW Ottawa-IAD Washington, D.C. Dulles Intl

2h 01mnonstop

1:17 pm - 3:07 pmIAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 50mnonstop

$420United Airlines

Tue, Jan 12 - Fri, Jan 15

2:00 pm - 4:01 pmYOW Ottawa-IAD Washington, D.C. Dulles Intl

2h 01mnonstop

1:17 pm - 3:07 pmIAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 50mnonstop

$420United Airlines

Tue, Dec 29 - Fri, Jan 1

2:00 pm - 4:01 pmYOW Ottawa-IAD Washington, D.C. Dulles Intl

2h 01mnonstop

5:40 pm - 7:27 pmIAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 47mnonstop

$420United Airlines

Tue, Dec 29 - Sat, Jan 2

9:45 am - 11:48 amYOW Ottawa-IAD Washington, D.C. Dulles Intl

2h 03mnonstop

5:37 pm - 7:27 pmIAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 50mnonstop

$459Lufthansa

Thu, Dec 3 - Sun, Dec 6

7:25 pm - 9:00 pmYOW Ottawa-IAD Washington, D.C. Dulles Intl

1h 35mnonstop

10:10 pm - 11:42 pmIAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 32mnonstop

$464Multiple Airlines

Thu, Apr 8 - Mon, Apr 12

10:30 am - 12:19 pmYOW Ottawa-DCA Washington, D.C. Reagan-National

1h 49mnonstop

12:55 pm - 2:29 pmDCA Washington, D.C. Reagan-National-YOW Ottawa

1h 34mnonstop

$466Multiple Airlines

Thu, Dec 3 - Sun, Dec 6

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

Our best United Airlines deals on Ottawa to Washington, D.C. flight tickets

United Airlines

Dec 2

YOW6:00 amOttawa

25h 22m

1 stop

IAD7:22 amWashington, D.C. Dulles Intl

Dec 3

IAD1:19 pmWashington, D.C. Dulles Intl

1h 48m

YOW3:07 pmOttawa

$341

United Airlines

Dec 2

YOW6:00 amOttawa

25h 22m

1 stop

IAD7:22 amWashington, D.C. Dulles Intl

Dec 3

IAD1:19 pmWashington, D.C. Dulles Intl

1h 48m

YOW3:07 pmOttawa

$342

United Airlines

Dec 2

YOW6:00 amOttawa

25h 22m

1 stop

IAD7:22 amWashington, D.C. Dulles Intl

Dec 3

IAD1:19 pmWashington, D.C. Dulles Intl

1h 48m

YOW3:07 pmOttawa

$364

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

Our best Porter Airlines deals on Ottawa to Washington, D.C. flight tickets

Porter Airlines

Dec 11

YOW12:15 pmOttawa

5h 30m

1 stop

IAD5:45 pmWashington, D.C. Dulles Intl

Dec 14

IAD11:20 amWashington, D.C. Dulles Intl

5h 18m

1 stop

YOW4:38 pmOttawa

$354

Porter Airlines

Dec 11

YOW12:15 pmOttawa

5h 30m

1 stop

IAD5:45 pmWashington, D.C. Dulles Intl

Jan 11

IAD11:20 amWashington, D.C. Dulles Intl

5h 45m

1 stop

YOW5:05 pmOttawa

$356

Porter Airlines

Nov 16

YOW12:15 pmOttawa

5h 29m

1 stop

IAD5:44 pmWashington, D.C. Dulles Intl

Nov 18

IAD11:20 amWashington, D.C. Dulles Intl

5h 17m

1 stop

YOW4:37 pmOttawa

$360

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaWashington, D.C.

YOW Ottawa - DCA Washington, D.C. Reagan-National

YOWDCA

Ottawa

Thu 12/17

9:00 am-3:24 pm

1 stop6h 24m

Washington, D.C. Reagan-National

Thu 12/24

6:00 am-11:37 am

1 stop5h 37m

$340

OttawaWashington, D.C.

YOW Ottawa - IAD Washington, D.C. Dulles Intl

YOWIAD

Ottawa

Wed 12/2

6:00 am-7:22 am

1 stop25h 22m

Washington, D.C. Dulles Intl

Thu 12/3

1:19 pm-3:07 pm

Nonstop1h 48m

$341

OttawaWashington, D.C.

YOW Ottawa - IAD Washington, D.C. Dulles Intl

YOWIAD

Ottawa

Wed 12/2

6:00 am-7:22 am

1 stop25h 22m

Washington, D.C. Dulles Intl

Thu 12/3

1:19 pm-3:07 pm

Nonstop1h 48m

$342

Quickest round-trip

OttawaWashington, D.C.

YOW Ottawa - DCA Washington, D.C. Reagan-National

YOWDCA

Ottawa

Wed 12/2

10:30 am-12:19 pm

Nonstop1h 49m

Washington, D.C. Reagan-National

Thu 12/3

12:55 pm-2:29 pm

Nonstop1h 34m

$352

OttawaWashington, D.C.

YOW Ottawa - IAD Washington, D.C. Dulles Intl

YOWIAD

Ottawa

Fri 12/11

12:15 pm-5:45 pm

1 stop5h 30m

Washington, D.C. Dulles Intl

Mon 12/14

11:20 am-4:38 pm

1 stop5h 18m

$354

OttawaWashington, D.C.

YOW Ottawa - DCA Washington, D.C. Reagan-National

YOWDCA

Ottawa

Thu 11/19

10:50 am-3:24 pm

1 stop4h 34m

Washington, D.C. Reagan-National

Mon 11/23

11:05 am-3:57 pm

1 stop4h 52m

$355

OttawaWashington, D.C.

YOW Ottawa - IAD Washington, D.C. Dulles Intl

YOWIAD

Ottawa

Fri 12/11

12:15 pm-5:45 pm

1 stop5h 30m

Washington, D.C. Dulles Intl

Mon 1/11

11:20 am-5:05 pm

1 stop5h 45m

$356

OttawaWashington, D.C.

YOW Ottawa - IAD Washington, D.C. Dulles Intl

YOWIAD

Ottawa

Mon 11/16

12:15 pm-5:44 pm

1 stop5h 29m

Washington, D.C. Dulles Intl

Wed 11/18

11:20 am-4:37 pm

1 stop5h 17m

$360

OttawaWashington, D.C.

YOW Ottawa - IAD Washington, D.C. Dulles Intl

YOWIAD

Ottawa

Thu 11/19

10:05 am-3:45 pm

1 stop5h 40m

Washington, D.C. Dulles Intl

Mon 11/23

5:20 pm-9:52 pm

1 stop4h 32m

$360

OttawaWashington, D.C.

YOW Ottawa - IAD Washington, D.C. Dulles Intl

YOWIAD

Ottawa

Wed 12/2

6:00 am-7:22 am

1 stop25h 22m

Washington, D.C. Dulles Intl

Thu 12/3

1:19 pm-3:07 pm

Nonstop1h 48m

$364

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

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

Prices

Airlines

Other information

What is the typical price of a round-trip flight between Ottawa and Washington, D.C.?

Prices are currently low for flights on this route.

Typical prices usually range from $419 to $597.
The lowest price recently found on this route was $340.

What is the cheapest month to fly to Washington, D.C.?

The month of January is, on average, the cheapest month to fly to Washington, D.C. from Ottawa, with most prices found around $328. If you’re not able to fly to Washington, D.C. in January, then December is your next best option. Flight prices from Ottawa to Washington, D.C. during December average around $374.

What is the cheapest day to depart on your flight to Washington, D.C.?

On average, the least expensive day to fly to Washington, D.C. from Ottawa is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $543. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Ottawa to Washington, D.C. for around $698.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

In the morning is the cheapest time of day to fly from Ottawa to Washington, D.C. when you can find flight prices for as low as $526. Flying to Washington, D.C. in the morning is an ideal time because this is during off-peak travel hours. Try not to purchase tickets at noon because they tend to be around $762. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

Fly from Ottawa to Washington, D.C. Dulles Intl for the best Ottawa - Washington, D.C. flight prices

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

There are 3 cabin classes available to choose from on Ottawa to Washington, D.C. 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 Ottawa to Washington, D.C. flights?

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

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

As of November 2026, prices for Ottawa to Washington, D.C. flights are approximately 60% more expensive when compared to flights at the same time last year.

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

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

Estimated round-trip price

Cheap Ottawa to Washington, D.C. (YOW to WAS) flight deals and tips

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

Best Price Found	$203
Fastest flight time	1h 49m
Direct flights	Every day
Airports in Washington, D.C.	2 airports

The best one-way flight to Washington, D.C. from Ottawa in the past 72 hours is $203. The best round-trip flight deal from Ottawa to Washington, D.C. found on momondo in the last 72 hours is $340.

The fastest flight from Ottawa to Washington, D.C. takes 1h 49m

Direct flights go from Ottawa to Washington, D.C. every day.

There are 2 airports in Washington, D.C.. From Ottawa there are direct flights to Washington, D.C. Reagan-National (DCA), Washington, D.C. Dulles Intl (IAD).

Search flight deals

Frequently asked questions about flying from Ottawa to Washington, D.C.

How far is Ottawa to Washington, D.C. by plane?
The distance between Ottawa and Washington, D.C. is about 454.6 mi. In terms of flight time, this usually takes a little over 1h 49m.
When did momondo last update prices for flights from Ottawa Airport to Washington, D.C.?
Prices for flights from Ottawa Airport to Washington, D.C. are refreshed on a daily basis.
How many operators does momondo search for flights from Ottawa Airport to Washington, D.C.?
As of November 2026, there are 2 operators available to choose from for flights from Ottawa Airport to Washington, D.C..
How old do you have to be to fly from Ottawa Airport to Washington, D.C.?
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 Ottawa Airport to Washington, D.C..
What documentation or ID do you need to fly to Washington, D.C.?
The travel and health documents you'll need for your trip to Washington, D.C. 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 Washington, D.C.. 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 Ottawa to Washington, D.C.?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Ottawa to Washington, D.C. is Embraer 175 (Enhanced Winglets) (39.57% of total bookings). The next most popular plane models are Canadair (Bombardier) Regional Jet CRJ-550 (30.66%), Canadair (Bombardier) Regional Jet 900 (9.16%), and Embraer 195 E2 (4.71%).
What is the most popular airline from Ottawa to Washington, D.C.?
momondo data reveals that the most frequently booked airline on the route from Ottawa to Washington, D.C. is Air Canada, representing 74% of all bookings. The subsequent popular airline is United Airlines at 26%.

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

Compare and see reviews for airlines that fly from Ottawa to Washington, D.C. with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $235	Free Cancellation	Rating 7.3 10,460 reviews		Search United Airlines flights
Air Canada	PriceFrom $295	Free Cancellation	Rating 7.1 11,847 reviews		Search Air Canada flights

United Airlines Flights From Ottawa to Washington, D.C.
Across 14 United Airlines flights from Ottawa to Washington, D.C. this week, the average price was $400, with the best United Airlines deals starting from $235 round-trip. 10,460 users have rated United Airlines on momondo, with an average score of 7.3/10.
Air Canada Flights From Ottawa to Washington, D.C.
$295 is the best Air Canada flight deal from Ottawa to Washington, D.C. found on momondo over the last 72 hours. The average Air Canada ticket price found was closer to $410, however, with flight time and availability significantly affecting the price. Air Canada (7.1/10 from 11,847 user reviews) flies into Washington, D.C. from Ottawa 21 times in an average week so prices can vary.

Alexandria

National Harbor

Arlington

Gettysburg

Fredericksburg

Waldorf

Laurel

Gaithersburg

Linthicum Heights

Woodbridge

Rockville

Silver Spring

Towson

Fairfax

Springfield

Glen Burnie

Edgewood

Colonial Beach

Falls Church

College Park

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ottawa to Washington, D.C.. momondo saves you time and could save you money on your trip.

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

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

Once you have performed a search for Ottawa to Washington, D.C. 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 Ottawa to Washington, D.C. right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ottawa to Washington, D.C. now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington, D.C. and let you know when they change.

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Fly into one of these airports located in Washington, D.C.

Washington, D.C. Reagan-National Airport

Washington, D.C. Dulles Intl Airport

Cheap flights from Ottawa to Washington, D.C. from $203

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ottawa to Washington, D.C. 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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United Airlines flights from Ottawa to Washington, D.C.

Our best United Airlines deals on Ottawa to Washington, D.C. flight tickets

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

Our best Porter Airlines deals on Ottawa to Washington, D.C. flight tickets

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Use the filters below to find and compare flights from Ottawa to Washington, D.C. that are best for you.

See travel insights to Washington, D.C. from

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

What is the typical price of a round-trip flight between Ottawa and Washington, D.C.?

What is the cheapest month to fly to Washington, D.C.?

What is the cheapest day to depart on your flight to Washington, D.C.?

What is the cheapest time of day to depart on your flight to Washington, D.C.?

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

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

Can stopping save me money on Ottawa to Washington, D.C. flights?

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

What is the cheapest airline that flies from Ottawa to Washington, D.C.?

What airlines fly to Washington, D.C.?

How many flights depart from Ottawa to Washington, D.C. on average per day?

How many flights depart from Ottawa to Washington, D.C. on average per week?

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

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Airports in Washington, D.C.

Frequently asked questions about flying from Ottawa to Washington, D.C.

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Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.

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Cabin classes currently available on flights to Washington, D.C.

List of cabin classes available on flights landing in Washington, D.C.. Availability may vary depending on flight origin and airline.

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