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.

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

Porter Airlines and Air Canada are the most popular carriers operating from Ottawa 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 10 per day as of April 2026. The most frequent departure time is 10:00AM, with 54% 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 72 per week as of April 2026. The most frequent departure day is Wed, with 15% 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 April 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.

$171 Cheap Flights from Ottawa to Washington, D.C. in 2026

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11:00 am - 3:21 pm

YOW

IAD

4h 21m

1 stop

4:05 pm - 8:04 pm

IAD

YOW

3h 59m

1 stop

$309Porter Airlines

vie., may. 29 - vie., jun. 5

11:00 am - 3:21 pm

YOW

IAD

4h 21m

1 stop

4:05 pm - 8:04 pm

IAD

YOW

3h 59m

1 stop

$310Porter Airlines

vie., may. 8 - lun., may. 11

11:00 am - 3:21 pm

YOW

IAD

4h 21m

1 stop

4:05 pm - 8:04 pm

IAD

YOW

3h 59m

1 stop

$311Porter Airlines

vie., may. 8 - lun., may. 11

11:00 am - 3:21 pm

YOW

IAD

4h 21m

1 stop

11:30 am - 5:54 pm

IAD

YOW

6h 24m

1 stop

$312Porter Airlines

vie., may. 8 - mar., may. 12

11:00 am - 3:21 pm

YOW

IAD

4h 21m

1 stop

4:05 pm - 9:44 pm

IAD

YOW

5h 39m

1 stop

$313Porter Airlines

lun., jun. 1 - mié., jun. 3

7:00 am - 11:29 pm

YOW

BWI

16h 29m

1 stop

6:30 am - 3:15 pm

BWI

YOW

8h 45m

1 stop

$332Multiple Airlines

sáb., may. 30 - sáb., jun. 6

10:25 am - 12:00 pm

YOW

DCA

1h 35mnonstop

12:40 pm - 2:11 pm

DCA

YOW

1h 31mnonstop

$346Air Canada

vie., jul. 24 - mié., jul. 29

10:25 am - 12:01 pm

YOW

DCA

1h 36mnonstop

12:45 pm - 2:17 pm

DCA

YOW

1h 32mnonstop

$354Air Canada

vie., may. 29 - vie., jun. 5

10:25 am - 12:01 pm

YOW

DCA

1h 36mnonstop

12:45 pm - 2:17 pm

DCA

YOW

1h 32mnonstop

$359Air Canada

vie., may. 8 - lun., may. 11

6:00 am - 10:19 am

YOW

DCA

4h 19m

1 stop

6:00 am - 11:31 am

DCA

YOW

5h 31m

1 stop

$360Air Canada

lun., jun. 1 - lun., jun. 8

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

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

Porter Airlines

May 29

YOW11:00 amOttawa

4h 21m

1 stop

IAD3:21 pmWashington, D.C. Dulles Intl

Jun 5

IAD4:05 pmWashington, D.C. Dulles Intl

3h 59m

1 stop

YOW8:04 pmOttawa

$309

Porter Airlines

May 8

YOW11:00 amOttawa

4h 21m

1 stop

IAD3:21 pmWashington, D.C. Dulles Intl

May 11

IAD4:05 pmWashington, D.C. Dulles Intl

3h 59m

1 stop

YOW8:04 pmOttawa

$310

Porter Airlines

May 8

YOW11:00 amOttawa

4h 21m

1 stop

IAD3:21 pmWashington, D.C. Dulles Intl

May 11

IAD4:05 pmWashington, D.C. Dulles Intl

3h 59m

1 stop

YOW8:04 pmOttawa

$311

WestJet flights from Ottawa to Washington, D.C.

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

WestJet

May 2

YOW6:55 amOttawa

28h 30m

2 stops

DCA11:25 amWashington, D.C. Reagan-National

May 14

DCA9:39 amWashington, D.C. Reagan-National

7h 56m

2 stops

YOW5:35 pmOttawa

$769

WestJet

May 1

YOW6:55 amOttawa

9h 36m

2 stops

IAD4:31 pmWashington, D.C. Dulles Intl

May 14

IAD6:00 amWashington, D.C. Dulles Intl

11h 35m

2 stops

YOW5:35 pmOttawa

$788

WestJet

May 2

YOW12:25 pmOttawa

11h 01m

2 stops

BWI11:26 pmBaltimore/Washington

May 14

BWI6:10 amBaltimore/Washington

11h 25m

2 stops

YOW5:35 pmOttawa

$799

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

vie. 5/29

11:00 am-3:21 pm

1 stop4h 21m

Washington, D.C. Dulles Intl

vie. 6/5

4:05 pm-8:04 pm

1 stop3h 59m

$309

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

vie. 5/8

11:00 am-3:21 pm

1 stop4h 21m

Washington, D.C. Dulles Intl

lun. 5/11

4:05 pm-8:04 pm

1 stop3h 59m

$310

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

vie. 5/8

11:00 am-3:21 pm

1 stop4h 21m

Washington, D.C. Dulles Intl

lun. 5/11

4:05 pm-8:04 pm

1 stop3h 59m

$311

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

vie. 5/8

11:00 am-3:21 pm

1 stop4h 21m

Washington, D.C. Dulles Intl

mar. 5/12

11:30 am-5:54 pm

1 stop6h 24m

$312

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

lun. 6/1

11:00 am-3:21 pm

1 stop4h 21m

Washington, D.C. Dulles Intl

mié. 6/3

4:05 pm-9:44 pm

1 stop5h 39m

$313

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

sáb. 5/30

7:00 am-11:29 pm

1 stop16h 29m

Baltimore/Washington

sáb. 6/6

6:30 am-3:15 pm

1 stop8h 45m

$332

Quickest round-trip

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

vie. 7/24

10:25 am-12:00 pm

Nonstop1h 35m

Washington, D.C. Reagan-National

mié. 7/29

12:40 pm-2:11 pm

Nonstop1h 31m

$346

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

vie. 5/29

10:25 am-12:01 pm

Nonstop1h 36m

Washington, D.C. Reagan-National

vie. 6/5

12:45 pm-2:17 pm

Nonstop1h 32m

$354

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

vie. 5/8

10:25 am-12:01 pm

Nonstop1h 36m

Washington, D.C. Reagan-National

lun. 5/11

12:45 pm-2:17 pm

Nonstop1h 32m

$359

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

lun. 6/1

6:00 am-10:19 am

1 stop4h 19m

Washington, D.C. Reagan-National

lun. 6/8

6:00 am-11:31 am

1 stop5h 31m

$360

Flights are sorted by cheapest round-trip flights first.

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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 August is, on average, the cheapest month to fly to Washington, D.C. from Ottawa, with most prices found around $304. If you’re not able to fly to Washington, D.C. in August, then December is your next best option. Flight prices from Ottawa to Washington, D.C. during December average around $333.

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 $509. 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 $665.

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 $700. 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?

You could potentially save up to 17% 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 April 2026, prices for Ottawa to Washington, D.C. flights are approximately 16% 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	$216
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 $216. The best round-trip flight deal from Ottawa to Washington, D.C. found on momondo in the last 72 hours is $410.

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 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 April 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 Canadair (Bombardier) Regional Jet CRJ-550 (26.23% of total bookings). The next most popular plane models are Embraer 175 (Enhanced Winglets) (25.97%), Embraer 195 E2 (17.96%), and Canadair (Bombardier) Regional Jet 900 (9.04%).
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 70% of all bookings. The subsequent popular airline is United Airlines at 30%.

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 $296	Free Cancellation	Rating 7.1 10,935 reviews		Search Air Canada flights
United Airlines	PriceFrom $338	Free Cancellation	Rating 7.4 9,605 reviews		Search United Airlines flights

United Airlines Flights From Ottawa to Washington, D.C.
Across 39 United Airlines flights from Ottawa to Washington, D.C. this week, the average price was $443, with the best United Airlines deals starting from $338 round-trip. 9,605 users have rated United Airlines on momondo, with an average score of 7.4/10.
Air Canada Flights From Ottawa to Washington, D.C.
$296 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 $398, however, with flight time and availability significantly affecting the price. Air Canada (7.1/10 from 10,935 user reviews) flies into Washington, D.C. from Ottawa 34 times in an average week so prices can vary.

Alexandria

National Harbor

Gettysburg

Arlington

Waldorf

Woodbridge

Laurel

Colonial Beach

Gaithersburg

Towson

Fredericksburg

Silver Spring

Rockville

Manassas

Tysons

Linthicum Heights

Bethesda

Fairfax

Springfield

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.

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Cheap flights from Ottawa to Washington, D.C. from $176

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 5/18. 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

WestJet flights from Ottawa to Washington, D.C.

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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.

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.

Frequently asked questions about flying 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.?

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

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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.

Fly your favorite airline to Washington, D.C.

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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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