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

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

What airlines fly to Washington, D.C.?

Air Canada, United Airlines and Porter Airlines 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 72% of people opting to fly with this airline when traveling to Washington, D.C.. Keep in mind that there are 4 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 9 per day as of August 2026. The most frequent departure time is 10:00AM, with 61% 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 63 per week as of August 2026. The most frequent departure day is Mon, with 16% of weekly flights leaving on this day.

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 August 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.

$169 Cheap Flights from Ottawa to Washington, D.C. in 2026

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.

10:25 am - 12:00 pmYOW Ottawa-DCA Washington, D.C. Reagan-National

1h 35mnonstop

6:00 am - 11:30 amDCA Washington, D.C. Reagan-National-YOW Ottawa

5h 30m1 stop Montreal Pierre Elliott Trudeau Intl

$314Air Canada

Fri, Oct 16 - Mon, Oct 19

10:25 am - 12:00 pmYOW Ottawa-DCA Washington, D.C. Reagan-National

1h 35mnonstop

6:00 am - 9:39 amDCA Washington, D.C. Reagan-National-YOW Ottawa

3h 39m1 stop Montreal Pierre Elliott Trudeau Intl

$314Air Canada

Thu, Aug 27 - Sun, Aug 30

10:25 am - 12:00 pmYOW Ottawa-DCA Washington, D.C. Reagan-National

1h 35mnonstop

6:00 am - 11:30 amDCA Washington, D.C. Reagan-National-YOW Ottawa

5h 30m1 stop Montreal Pierre Elliott Trudeau Intl

$314Air Canada

Sat, Oct 17 - Sun, Oct 18

10:40 am - 12:14 pmYOW Ottawa-DCA Washington, D.C. Reagan-National

1h 34mnonstop

6:00 am - 11:30 amDCA Washington, D.C. Reagan-National-YOW Ottawa

5h 30m1 stop Montreal Pierre Elliott Trudeau Intl

$315Air Canada

Tue, Sep 15 - Tue, Sep 22

10:40 am - 3:10 pmYOW Ottawa-IAD Washington, D.C. Dulles Intl

4h 30m1 stop Toronto Island

11:25 am - 5:52 pmIAD Washington, D.C. Dulles Intl-YOW Ottawa

6h 27m1 stop Toronto Island

$324Porter Airlines

Fri, Sep 11 - Sun, Sep 13

7:30 am - 11:20 amYOW Ottawa-IAD Washington, D.C. Dulles Intl

3h 50m1 stop Toronto Island

12:05 pm - 7:32 pmIAD Washington, D.C. Dulles Intl-YOW Ottawa

7h 27m1 stop Toronto Island

$326Porter Airlines

Fri, Sep 4 - Sat, Sep 5

10:40 am - 3:10 pmYOW Ottawa-IAD Washington, D.C. Dulles Intl

4h 30m1 stop Toronto Island

3:50 pm - 8:02 pmIAD Washington, D.C. Dulles Intl-YOW Ottawa

4h 12m1 stop Toronto Island

$331Porter Airlines

Thu, Sep 17 - Sun, Sep 20

6:00 am - 7:43 amYOW Ottawa-IAD Washington, D.C. Dulles Intl

1h 43mnonstop

10:10 pm - 11:54 pmIAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 44mnonstop

$348United Airlines

Fri, Sep 25 - Sun, Sep 27

7:30 pm - 9:14 pmYOW Ottawa-IAD Washington, D.C. Dulles Intl

1h 44mnonstop

12:35 pm - 2:17 pmIAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 42mnonstop

$348United Airlines

Fri, Aug 28 - Sun, Aug 30

7:30 pm - 9:14 pmYOW Ottawa-IAD Washington, D.C. Dulles Intl

1h 44mnonstop

8:15 am - 9:56 amIAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 41mnonstop

$348United Airlines

Sat, Oct 17 - Sun, Oct 18

Cheap last minute flights

Enter your travel dates to find the best prices.

8:40 am - 8:56 pmYOW Ottawa-IAD Washington, D.C. Dulles Intl

12h 16m2 stops Toronto Pearson Intl Charlotte Douglas

6:10 am - 2:55 pmIAD Washington, D.C. Dulles Intl-YOW Ottawa

8h 45m2 stops Charlotte Douglas Toronto Pearson Intl

$562American Airlines

Tue, Aug 11 - Tue, Aug 18

6:00 am - 7:44 amYOW Ottawa-IAD Washington, D.C. Dulles Intl

1h 44mnonstop

8:20 am - 1:59 pmIAD Washington, D.C. Dulles Intl-YOW Ottawa

5h 39m1 stop Chicago O'Hare Intl

$564Air Canada

Sun, Aug 9 - Sun, Oct 4

6:00 am - 7:44 amYOW Ottawa-IAD Washington, D.C. Dulles Intl

1h 44mnonstop

8:15 am - 9:56 amIAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 41mnonstop

$564Air Canada

Sun, Aug 9 - Sun, Oct 4

5:10 am - 8:52 amYOW Ottawa-DCA Washington, D.C. Reagan-National

3h 42m1 stop Toronto Pearson Intl

6:00 am - 10:33 amDCA Washington, D.C. Reagan-National-YOW Ottawa

4h 33m1 stop Montreal Pierre Elliott Trudeau Intl

$575Air Canada

Sat, Aug 8 - Sun, Oct 4

10:40 am - 3:10 pmYOW Ottawa-IAD Washington, D.C. Dulles Intl

4h 30m1 stop Toronto Island

3:50 pm - 9:42 pmIAD Washington, D.C. Dulles Intl-YOW Ottawa

5h 52m1 stop Toronto Island

$576Porter Airlines

Sat, Aug 8 - Sun, Oct 4

7:00 am - 6:14 pmYOW Ottawa-DCA Washington, D.C. Reagan-National

11h 14m2 stops Toronto Pearson Intl Charlotte Douglas

10:15 am - 12:25 amDCA Washington, D.C. Reagan-National-YOW Ottawa

14h 10m1 stop Toronto Pearson Intl

$591American Airlines

Sat, Aug 8 - Sun, Oct 4

8:40 am - 8:56 pmYOW Ottawa-IAD Washington, D.C. Dulles Intl

12h 16m2 stops Toronto Pearson Intl Charlotte Douglas

6:10 am - 9:00 pmIAD Washington, D.C. Dulles Intl-YOW Ottawa

14h 50m2 stops Charlotte Douglas Toronto Pearson Intl

$598American Airlines

Tue, Aug 11 - Wed, Aug 19

10:25 am - 12:00 pmYOW Ottawa-DCA Washington, D.C. Reagan-National

1h 35mnonstop

8:30 am - 1:59 pmDCA Washington, D.C. Reagan-National-YOW Ottawa

5h 29m1 stop Chicago O'Hare Intl

$617United Airlines

Sun, Aug 9 - Sun, Oct 4

10:25 am - 12:00 pmYOW Ottawa-DCA Washington, D.C. Reagan-National

1h 35mnonstop

12:40 pm - 2:10 pmDCA Washington, D.C. Reagan-National-YOW Ottawa

1h 30mnonstop

$617United Airlines

Sun, Aug 9 - Sun, Oct 4

10:25 am - 12:00 pmYOW Ottawa-DCA Washington, D.C. Reagan-National

1h 35mnonstop

12:40 pm - 2:10 pmDCA Washington, D.C. Reagan-National-YOW Ottawa

1h 30mnonstop

$617United Airlines

Mon, Aug 10 - Sun, Oct 4

Cheap direct flights

Enter your travel dates to find the best prices.

10:25 am - 12:00 pmYOW Ottawa-DCA Washington, D.C. Reagan-National

1h 35mnonstop

12:40 pm - 2:11 pmDCA Washington, D.C. Reagan-National-YOW Ottawa

1h 31mnonstop

$318Air Canada

Sat, Aug 22 - Mon, Aug 24

10:40 am - 12:14 pmYOW Ottawa-DCA Washington, D.C. Reagan-National

1h 34mnonstop

12:55 pm - 2:26 pmDCA Washington, D.C. Reagan-National-YOW Ottawa

1h 31mnonstop

$318Air Canada

Sat, Sep 5 - Mon, Sep 7

10:40 am - 12:14 pmYOW Ottawa-DCA Washington, D.C. Reagan-National

1h 34mnonstop

12:55 pm - 2:26 pmDCA Washington, D.C. Reagan-National-YOW Ottawa

1h 31mnonstop

$318Air Canada

Fri, Sep 4 - Sat, Sep 5

10:25 am - 12:00 pmYOW Ottawa-DCA Washington, D.C. Reagan-National

1h 35mnonstop

12:55 pm - 2:26 pmDCA Washington, D.C. Reagan-National-YOW Ottawa

1h 31mnonstop

$338Air Canada

Wed, Sep 2 - Mon, Sep 7

6:00 am - 7:43 amYOW Ottawa-IAD Washington, D.C. Dulles Intl

1h 43mnonstop

10:10 pm - 11:54 pmIAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 44mnonstop

$348United Airlines

Fri, Sep 25 - Sun, Sep 27

7:30 pm - 9:14 pmYOW Ottawa-IAD Washington, D.C. Dulles Intl

1h 44mnonstop

12:35 pm - 2:17 pmIAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 42mnonstop

$348United Airlines

Fri, Aug 28 - Sun, Aug 30

7:30 pm - 9:14 pmYOW Ottawa-IAD Washington, D.C. Dulles Intl

1h 44mnonstop

8:15 am - 9:56 amIAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 41mnonstop

$348United Airlines

Sat, Oct 17 - Sun, Oct 18

6:00 am - 7:43 amYOW Ottawa-IAD Washington, D.C. Dulles Intl

1h 43mnonstop

8:15 am - 9:56 amIAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 41mnonstop

$367Lufthansa

Thu, Aug 27 - Sun, Aug 30

2:52 pm - 4:35 pmYOW Ottawa-IAD Washington, D.C. Dulles Intl

1h 43mnonstop

10:10 pm - 11:54 pmIAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 44mnonstop

$393Multiple Airlines

Fri, Sep 4 - Sat, Sep 5

2:52 pm - 4:35 pmYOW Ottawa-IAD Washington, D.C. Dulles Intl

1h 43mnonstop

8:15 am - 9:56 amIAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 41mnonstop

$409Multiple Airlines

Tue, Sep 1 - Tue, Sep 8

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

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

Porter Airlines

Sep 11

YOW10:40 amOttawa

4h 30m

1 stop

IAD3:10 pmWashington, D.C. Dulles Intl

Sep 13

IAD11:25 amWashington, D.C. Dulles Intl

6h 27m

1 stop

YOW5:52 pmOttawa

$324

Porter Airlines

Sep 4

YOW7:30 amOttawa

3h 50m

1 stop

IAD11:20 amWashington, D.C. Dulles Intl

Sep 5

IAD12:05 pmWashington, D.C. Dulles Intl

7h 27m

1 stop

YOW7:32 pmOttawa

$326

Porter Airlines

Sep 17

YOW10:40 amOttawa

4h 30m

1 stop

IAD3:10 pmWashington, D.C. Dulles Intl

Sep 21

IAD3:50 pmWashington, D.C. Dulles Intl

4h 12m

1 stop

YOW8:02 pmOttawa

$331

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

Our best Air Canada deals on Ottawa to Washington, D.C. flight tickets

Air Canada

Aug 27

YOW10:25 amOttawa

1h 35m

DCA12:00 pmWashington, D.C. Reagan-National

Aug 30

DCA6:00 amWashington, D.C. Reagan-National

3h 39m

1 stop

YOW9:39 amOttawa

$314

Air Canada

Sep 15

YOW12:15 pmOttawa

4h 23m

1 stop

IAD4:38 pmWashington, D.C. Dulles Intl

Sep 22

IAD3:45 pmWashington, D.C. Dulles Intl

4h 59m

1 stop

YOW8:44 pmOttawa

$315

Air Canada

Sep 16

YOW6:00 amOttawa

4h 20m

1 stop

DCA10:20 amWashington, D.C. Reagan-National

Sep 23

DCA6:00 amWashington, D.C. Reagan-National

4h 18m

1 stop

YOW10:18 amOttawa

$317

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaWashington, D.C.

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

YOWDCA

Ottawa

Fri 10/16

10:25 am-12:00 pm

Nonstop1h 35m

Washington, D.C. Reagan-National

Mon 10/19

6:00 am-11:30 am

1 stop5h 30m

$314

OttawaWashington, D.C.

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

YOWDCA

Ottawa

Thu 8/27

10:25 am-12:00 pm

Nonstop1h 35m

Washington, D.C. Reagan-National

Sun 8/30

6:00 am-9:39 am

1 stop3h 39m

$314

OttawaWashington, D.C.

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

YOWDCA

Ottawa

Sat 10/17

10:25 am-12:00 pm

Nonstop1h 35m

Washington, D.C. Reagan-National

Sun 10/18

6:00 am-11:30 am

1 stop5h 30m

$314

OttawaWashington, D.C.

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

YOWDCA

Ottawa

Tue 9/15

10:40 am-12:14 pm

Nonstop1h 34m

Washington, D.C. Reagan-National

Tue 9/22

6:00 am-11:30 am

1 stop5h 30m

$315

OttawaWashington, D.C.

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

YOWIAD

Ottawa

Fri 9/11

10:40 am-3:10 pm

1 stop4h 30m

Washington, D.C. Dulles Intl

Sun 9/13

11:25 am-5:52 pm

1 stop6h 27m

$324

OttawaWashington, D.C.

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

YOWIAD

Ottawa

Fri 9/4

7:30 am-11:20 am

1 stop3h 50m

Washington, D.C. Dulles Intl

Sat 9/5

12:05 pm-7:32 pm

1 stop7h 27m

$326

OttawaWashington, D.C.

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

YOWIAD

Ottawa

Thu 9/17

10:40 am-3:10 pm

1 stop4h 30m

Washington, D.C. Dulles Intl

Sun 9/20

3:50 pm-8:02 pm

1 stop4h 12m

$331

OttawaWashington, D.C.

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

YOWIAD

Ottawa

Fri 9/25

6:00 am-7:43 am

Nonstop1h 43m

Washington, D.C. Dulles Intl

Sun 9/27

10:10 pm-11:54 pm

Nonstop1h 44m

$348

OttawaWashington, D.C.

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

YOWIAD

Ottawa

Fri 8/28

7:30 pm-9:14 pm

Nonstop1h 44m

Washington, D.C. Dulles Intl

Sun 8/30

12:35 pm-2:17 pm

Nonstop1h 42m

$348

Quickest round-trip

OttawaWashington, D.C.

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

YOWIAD

Ottawa

Sat 10/17

7:30 pm-9:14 pm

Nonstop1h 44m

Washington, D.C. Dulles Intl

Sun 10/18

8:15 am-9:56 am

Nonstop1h 41m

$348

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 $338 to $449.
The lowest price recently found on this route was $314.

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 $332. 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 $354.

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 Wednesday. momondo users have found tickets for Wednesday departures for as low as $524. 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 $709.

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 $484. 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 $732. 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 4 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 August 2026, prices for Ottawa to Washington, D.C. flights are approximately 6% 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	$199
Fastest flight time	1h 35m
Direct flights	Tue, Wed, Thu, Fri, Sat and Sun
Airports in Washington, D.C.	2 airports

The best one-way flight to Washington, D.C. from Ottawa in the past 72 hours is $199. The best round-trip flight deal from Ottawa to Washington, D.C. found on momondo in the last 72 hours is $346.

The fastest flight from Ottawa to Washington, D.C. takes 1h 35m

Direct flights go from Ottawa to Washington, D.C. on Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday. The only airline offering direct flights is United Airlines.

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 35m.
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 August 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) (33.33% of total bookings). The next most popular plane models are Canadair (Bombardier) Regional Jet CRJ-550 (33.21%), Canadair (Bombardier) Regional Jet 900 (14.70%), and Embraer 195 E2 (5.20%).
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 77% of all bookings. The subsequent popular airline is United Airlines at 23%.

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
Air Canada	PriceFrom $284	Free Cancellation	Rating 7.1 11,431 reviews		Search Air Canada flights
United Airlines	PriceFrom $344	Free Cancellation	Rating 7.4 10,073 reviews		Search United Airlines flights

United Airlines Flights From Ottawa to Washington, D.C.
Across 31 United Airlines flights from Ottawa to Washington, D.C. this week, the average price was $471, with the best United Airlines deals starting from $344 round-trip. 10,073 users have rated United Airlines on momondo, with an average score of 7.4/10.
Air Canada Flights From Ottawa to Washington, D.C.
$284 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 $401, however, with flight time and availability significantly affecting the price. Air Canada (7.1/10 from 11,431 user reviews) flies into Washington, D.C. from Ottawa 32 times in an average week so prices can vary.

Alexandria

National Harbor

Arlington

Gettysburg

Waldorf

Laurel

Woodbridge

Fredericksburg

Gaithersburg

Linthicum Heights

Rockville

Silver Spring

Towson

Colonial Beach

Springfield

Fairfax

Tysons

Edgewood

Bethesda

Glen Burnie

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 $169

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 9/2. 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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Porter Airlines flights from Ottawa to Washington, D.C.

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

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

Our best Air Canada 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.

Best airlines 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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