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

Porter Airlines, Air Canada, and Lufthansa 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 73% 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 week?

The number of flights available between Ottawa and Washington, D.C. is 56 per week as of September 2025. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.

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 8 per day as of September 2025. The most frequent departure time is 9:00AM, with 50% of daily flights leaving at noon.

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 September 2025, there are 3 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.

$161 Cheap Flights from Ottawa to Washington, D.C. in 2025

Q: 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 $537. The lowest price recently found on this route was $255.

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

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

4:25 pm - 9:23 amYOW-BWI

16h 58m1 stop

11:19 am - 4:57 pmBWI-YOW

29h 38m1 stop

$255

Find Deal

Wed, Oct 1 - Tue, Oct 7

4:25 pm - 3:29 pmYOW-BWI

23h 04m1 stop

11:19 am - 4:57 pmBWI-YOW

29h 38m1 stop

$257

Find Deal

Tue, Sep 30 - Tue, Oct 7

7:00 am - 8:32 pmYOW-BWI

13h 32m2 stops

11:19 am - 4:57 pmBWI-YOW

29h 38m1 stop

$261

Find Deal

Thu, Oct 2 - Tue, Oct 7

4:25 pm - 9:23 amYOW-BWI

16h 58m1 stop

8:16 pm - 5:20 pmBWI-YOW

21h 04m1 stop

$267

Find Deal

Wed, Oct 1 - Sat, Oct 4

9:35 am - 3:06 pmYOW-IAD

5h 31m1 stop

11:35 am - 4:34 pmIAD-YOW

4h 59m1 stop

$293Porter Airlines

Find Deal

Wed, Oct 8 - Sun, Oct 12

6:00 am - 10:20 amYOW-DCA

4h 20m1 stop

6:00 am - 10:25 amDCA-YOW

4h 25m1 stop

$295Air Canada

Find Deal

Wed, Oct 1 - Mon, Oct 6

11:05 am - 3:51 pmYOW-DCA

4h 46m1 stop

6:00 am - 10:25 amDCA-YOW

4h 25m1 stop

$296Air Canada

Find Deal

Thu, Oct 2 - Mon, Oct 6

7:00 am - 10:16 amYOW-IAD

3h 16m1 stop

11:35 am - 4:34 pmIAD-YOW

4h 59m1 stop

$300Porter Airlines

Find Deal

Thu, Oct 2 - Thu, Oct 9

6:33 am - 12:21 amYOW-IAD

17h 48m1 stop

8:16 am - 9:58 amIAD-YOW

1h 42mnonstop

$342United Airlines

Find Deal

Fri, Oct 3 - Sat, Oct 4

7:29 pm - 9:12 pmYOW-IAD

1h 43mnonstop

6:15 am - 11:45 amIAD-YOW

5h 30m1 stop

$355United Airlines

Find Deal

Sat, Oct 11 - Thu, Oct 16

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

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

United Airlines

Oct 3

YOW6:33 amOttawa

17h 48m

1 stop

IAD12:21 amWashington, D.C. Dulles Intl

Oct 4

IAD8:16 amWashington, D.C. Dulles Intl

1h 42m

YOW9:58 amOttawa

$342

Find similar

United Airlines

Oct 11

YOW7:29 pmOttawa

1h 43m

IAD9:12 pmWashington, D.C. Dulles Intl

Oct 16

IAD6:15 amWashington, D.C. Dulles Intl

5h 30m

1 stop

YOW11:45 amOttawa

$355

Find similar

United Airlines

Oct 21

YOW7:29 pmOttawa

1h 43m

IAD9:12 pmWashington, D.C. Dulles Intl

Oct 23

IAD6:15 amWashington, D.C. Dulles Intl

5h 30m

1 stop

YOW11:45 amOttawa

$357

Find similar

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

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

Porter Airlines

Oct 8

YOW9:35 amOttawa

5h 31m

1 stop

IAD3:06 pmWashington, D.C. Dulles Intl

Oct 12

IAD11:35 amWashington, D.C. Dulles Intl

4h 59m

1 stop

YOW4:34 pmOttawa

$293

Find similar

Porter Airlines

Oct 2

YOW7:00 amOttawa

3h 16m

1 stop

IAD10:16 amWashington, D.C. Dulles Intl

Oct 9

IAD11:35 amWashington, D.C. Dulles Intl

4h 59m

1 stop

YOW4:34 pmOttawa

$300

Find similar

Porter Airlines

Nov 8

YOW8:40 amOttawa

3h 49m

1 stop

IAD12:29 pmWashington, D.C. Dulles Intl

Nov 14

IAD6:30 pmWashington, D.C. Dulles Intl

3h 59m

1 stop

YOW10:29 pmOttawa

$312

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Wed 10/1

4:25 pm-9:23 am

1 stop16h 58m

Baltimore/Washington

Tue 10/7

11:19 am-4:57 pm

1 stop29h 38m

$255

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Tue 9/30

4:25 pm-3:29 pm

1 stop23h 04m

Baltimore/Washington

Tue 10/7

11:19 am-4:57 pm

1 stop29h 38m

$257

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Thu 10/2

7:00 am-8:32 pm

2 stops13h 32m

Baltimore/Washington

Tue 10/7

11:19 am-4:57 pm

1 stop29h 38m

$261

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Wed 10/1

4:25 pm-9:23 am

1 stop16h 58m

Baltimore/Washington

Sat 10/4

8:16 pm-5:20 pm

1 stop21h 04m

$267

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Wed 10/8

9:35 am-3:06 pm

1 stop5h 31m

Washington, D.C. Dulles Intl

Sun 10/12

11:35 am-4:34 pm

1 stop4h 59m

$293

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Wed 10/1

6:00 am-10:20 am

1 stop4h 20m

Washington, D.C. Reagan-National

Mon 10/6

6:00 am-10:25 am

1 stop4h 25m

$295

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Thu 10/2

11:05 am-3:51 pm

1 stop4h 46m

Washington, D.C. Reagan-National

Mon 10/6

6:00 am-10:25 am

1 stop4h 25m

$296

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Thu 10/2

7:00 am-10:16 am

1 stop3h 16m

Washington, D.C. Dulles Intl

Thu 10/9

11:35 am-4:34 pm

1 stop4h 59m

$300

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Fri 10/3

6:33 am-12:21 am

1 stop17h 48m

Washington, D.C. Dulles Intl

Sat 10/4

8:16 am-9:58 am

Nonstop1h 42m

$342

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Sat 10/11

7:29 pm-9:12 pm

Nonstop1h 43m

Washington, D.C. Dulles Intl

Thu 10/16

6:15 am-11:45 am

1 stop5h 30m

$355

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.?

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

The month of March is, on average, the cheapest month to fly to Washington, D.C. from Ottawa, with most prices found around $293. If you’re not able to fly to Washington, D.C. in March, then April is your next best option. Flight prices from Ottawa to Washington, D.C. during April average around $301.

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 Friday. momondo users have found tickets for Friday departures for as low as $550. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Tuesday, 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 afternoon is the cheapest time of day to fly from Ottawa to Washington, D.C. when you can find flight prices for as low as $328. Flying to Washington, D.C. in the afternoon 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 $674. 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. Reagan-National for the best Ottawa - Washington, D.C. flight prices

How far in advance should I book a flight to Washington, D.C.?

You are more likely to see cheaper flights to Washington, D.C. from Ottawa when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $375 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from Ottawa for as low as $250 on momondo.

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?

You could potentially save up to 7% on your flight if you consider stops on a Ottawa to Washington, D.C. flight.

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

As of September 2025, prices for Ottawa to Washington, D.C. flights are approximately 53% 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	$195
Fastest flight time	1h 35m
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 $195. The best round-trip flight deal from Ottawa to Washington, D.C. found on momondo in the last 72 hours is $218.

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

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

There are 2 airports near Washington, D.C.: Washington, D.C. Reagan-National (DCA), Washington, D.C. Dulles Intl (IAD)

Search flight deals

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 43m.
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 September 2025, there are 3 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 Canadair (Bombardier) Regional Jet CRJ-550 (50.08% of total bookings). The next most popular plane models are Canadair (Bombardier) Regional Jet 900 (20.40%), Boeing 787-9 Dreamliner (4.81%), and Embraer 195 E2 (3.48%).
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 63% of all bookings. The subsequent popular airlines are United Airlines at 25% and Porter Airlines at 12%.

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
Porter Airlines	PriceFrom $197	Free Cancellation	Rating 7.9 363 reviews	Search Porter Airlines flights
United Airlines	PriceFrom $281	Free Cancellation	Rating 7.4 8,937 reviews	Search United Airlines flights
Air Canada	PriceFrom $284	Free Cancellation	Rating 7.1 10,000 reviews	Search Air Canada flights

United Airlines Flights From Ottawa to Washington, D.C.
Across 28 United Airlines flights from Ottawa to Washington, D.C. this week, the average price was $443, with the best United Airlines deals starting from $281 round-trip. 8,937 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 $453, however, with flight time and availability significantly affecting the price. Air Canada (7.1/10 from 10,000 user reviews) flies into Washington, D.C. from Ottawa 28 times in an average week so prices can vary.

Alexandria

Gettysburg

National Harbor

Arlington

Woodbridge

Waldorf

Tysons

Laurel

Colonial Beach

Silver Spring

Fredericksburg

Towson

Rockville

Manassas

Reston

Fairfax

Gaithersburg

Glen Burnie

Springfield

Linthicum Heights

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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Sat 10/18

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Find better results for your trip to the United States

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

Washington, D.C. Reagan-National Airport

Washington, D.C. Dulles Intl Airport

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Cheap flights from Ottawa to Washington, D.C. from $161

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 10/23. 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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Big names and deals

Filter for what you want

Filter for what you want

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

Cheap round-trip flights

Cheap one-way flights

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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.

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 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?

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

How far in advance should I book a flight to Washington, D.C.?

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?

You could potentially save up to 7% on your flight if you consider stops on a Ottawa to Washington, D.C. flight.

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

As of September 2025, prices for Ottawa to Washington, D.C. flights are approximately 53% more expensive when compared to flights at the same time last year.

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

Porter Airlines, Air Canada, and Lufthansa are the most popular carriers operating 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?

The number of flights available between Ottawa and Washington, D.C. is 8 per day as of September 2025. The most frequent departure time is 9:00AM, with 50% 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 56 per week as of September 2025. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.

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

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

Fastest flight time

Direct flights

Airports in Washington, D.C.

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

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

How many operators does momondo search 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.?

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

What is the most popular plane model from Ottawa to Washington, D.C.?

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

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

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

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

Traveling to a place near Washington, D.C.?

Why use momondo?

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

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

How can momondo help me find flights from Ottawa to Washington, D.C.?

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

An easier way to manage your Washington, D.C. 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

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.