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

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

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

As of July 2026, there are 75 flights per week flying from Washington, D.C. to Ottawa. The most common day of the week flights depart is Mon, with 15% of flights taking off on this day.

How long does it take to fly to Ottawa?

Average flight duration from Washington, D.C. to Ottawa depends on which airport you fly into and out of. Flying from Washington, D.C. to Montreal Pierre Elliott Trudeau Intl Airport is 1h 39m on average, while flying from Baltimore to Montreal Pierre Elliott Trudeau Intl Airport is 5h 32m on average. Montreal Pierre Elliott Trudeau Intl Airport is the most popular airport in Ottawa.

What airlines fly to Ottawa?

Air Canada, United Airlines and Porter Airlines are the top three most popular airlines that fly to Ottawa from Washington, D.C. according to our data. Air Canada is the first choice among our users, with 61% of people opting to fly with this airline when traveling to Ottawa. Keep in mind that there are 4 different airlines that fly to Ottawa on a routine basis, so you have a few additional options to choose from.

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

As of July 2026, there are 10 flights per day flying from Washington, D.C. to Ottawa. The most common time of day flights depart is 12:00PM, with 62% of flights taking off in the afternoon.

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?

As of July 2026, there are 3 operators available to choose from 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.

$144 Cheap Flights from Washington, D.C. to Ottawa in 2026

Discover deals from 900+ travel sites with momondo.

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

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:50 pm - 8:02 pm

IAD

YOW

4h 12m

1 stop

10:40 am - 3:10 pm

YOW

IAD

4h 30m

1 stop

$314Porter Airlines

Thu, Sep 10 - Sun, Sep 13

3:50 pm - 8:04 pm

IAD

YOW

4h 14m

1 stop

10:40 am - 3:10 pm

YOW

IAD

4h 30m

1 stop

$317Porter Airlines

Thu, Aug 20 - Sun, Aug 23

3:50 pm - 9:44 pm

IAD

YOW

5h 54m

1 stop

10:40 am - 3:10 pm

YOW

IAD

4h 30m

1 stop

$318Porter Airlines

Fri, Aug 7 - Fri, Aug 14

11:25 am - 5:52 pm

IAD

YOW

6h 27m

1 stop

10:40 am - 3:10 pm

YOW

IAD

4h 30m

1 stop

$319Porter Airlines

Thu, Sep 10 - Sun, Sep 13

3:50 pm - 9:44 pm

IAD

YOW

5h 54m

1 stop

10:40 am - 3:10 pm

YOW

IAD

4h 30m

1 stop

$321Porter Airlines

Thu, Aug 20 - Sun, Aug 23

12:40 pm - 2:11 pm

DCA

YOW

1h 31mnonstop

10:25 am - 12:00 pm

YOW

DCA

1h 35mnonstop

$363Air Canada

Thu, Aug 13 - Sun, Aug 16

6:00 am - 9:39 am

DCA

YOW

3h 39m

1 stop

10:25 am - 12:00 pm

YOW

DCA

1h 35mnonstop

$371Air Canada

Thu, Aug 13 - Sun, Aug 16

9:28 pm - 2:33 pm

BWI

YOW

17h 05m

1 stop

2:10 pm - 7:26 am

YOW

BWI

17h 16m

2 stops

$371Multiple Airlines

Thu, Aug 6 - Wed, Aug 12

12:40 pm - 2:11 pm

DCA

YOW

1h 31mnonstop

10:25 am - 12:00 pm

YOW

DCA

1h 35mnonstop

$372Air Canada

Fri, Aug 7 - Fri, Aug 14

12:40 pm - 2:11 pm

DCA

YOW

1h 31mnonstop

10:25 am - 12:00 pm

YOW

DCA

1h 35mnonstop

$373Air Canada

Thu, Aug 13 - Mon, Aug 17

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

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

Porter Airlines

Sep 10

IAD3:50 pmWashington, D.C. Dulles Intl

4h 12m

1 stop

YOW8:02 pmOttawa

Sep 13

YOW10:40 amOttawa

4h 30m

1 stop

IAD3:10 pmWashington, D.C. Dulles Intl

$314

Porter Airlines

Aug 20

IAD3:50 pmWashington, D.C. Dulles Intl

4h 14m

1 stop

YOW8:04 pmOttawa

Aug 23

YOW10:40 amOttawa

4h 30m

1 stop

IAD3:10 pmWashington, D.C. Dulles Intl

$317

Porter Airlines

Aug 7

IAD3:50 pmWashington, D.C. Dulles Intl

5h 54m

1 stop

YOW9:44 pmOttawa

Aug 14

YOW10:40 amOttawa

4h 30m

1 stop

IAD3:10 pmWashington, D.C. Dulles Intl

$318

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

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

Air Canada

Aug 13

DCA12:40 pmWashington, D.C. Reagan-National

1h 31m

YOW2:11 pmOttawa

Aug 16

YOW10:25 amOttawa

1h 35m

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

$363

Air Canada

Aug 13

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

3h 39m

1 stop

YOW9:39 amOttawa

Aug 16

YOW10:25 amOttawa

1h 35m

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

$371

Air Canada

Aug 7

DCA12:40 pmWashington, D.C. Reagan-National

1h 31m

YOW2:11 pmOttawa

Aug 14

YOW10:25 amOttawa

1h 35m

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

$372

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Thu 9/10

3:50 pm-8:02 pm

1 stop4h 12m

Ottawa

Sun 9/13

10:40 am-3:10 pm

1 stop4h 30m

$314

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Thu 8/20

3:50 pm-8:04 pm

1 stop4h 14m

Ottawa

Sun 8/23

10:40 am-3:10 pm

1 stop4h 30m

$317

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Fri 8/7

3:50 pm-9:44 pm

1 stop5h 54m

Ottawa

Fri 8/14

10:40 am-3:10 pm

1 stop4h 30m

$318

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Thu 9/10

11:25 am-5:52 pm

1 stop6h 27m

Ottawa

Sun 9/13

10:40 am-3:10 pm

1 stop4h 30m

$319

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Thu 8/20

3:50 pm-9:44 pm

1 stop5h 54m

Ottawa

Sun 8/23

10:40 am-3:10 pm

1 stop4h 30m

$321

Quickest round-trip

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 8/13

12:40 pm-2:11 pm

Nonstop1h 31m

Ottawa

Sun 8/16

10:25 am-12:00 pm

Nonstop1h 35m

$363

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 8/13

6:00 am-9:39 am

1 stop3h 39m

Ottawa

Sun 8/16

10:25 am-12:00 pm

Nonstop1h 35m

$371

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Thu 8/6

9:28 pm-2:33 pm

1 stop17h 05m

Ottawa

Wed 8/12

2:10 pm-7:26 am

2 stops17h 16m

$371

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Fri 8/7

12:40 pm-2:11 pm

Nonstop1h 31m

Ottawa

Fri 8/14

10:25 am-12:00 pm

Nonstop1h 35m

$372

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 8/13

12:40 pm-2:11 pm

Nonstop1h 31m

Ottawa

Mon 8/17

10:25 am-12:00 pm

Nonstop1h 35m

$373

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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

Prices

Airlines

Other information

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, August 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 $428. The month of October is another great option to travel to Ottawa, with average flight prices from Washington, D.C. averaging around $430.

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 Wednesday. Travelers who choose to depart for Ottawa on a Wednesday will often find tickets for as low as $475. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Ottawa on Monday is $567.

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 $484. 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 $1,105 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 4% 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 July 2026, prices for Washington, D.C. to Ottawa flights are approximately 25% 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	$233
Fastest flight time	1h 30m
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 $233. The best round-trip flight deal from Washington, D.C. to Ottawa found on momondo in the last 72 hours is $424.

The fastest flight from Washington, D.C. to Ottawa takes 1h 30m

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

There is 1 airport in Ottawa. From Washington, D.C. there are direct flights to Ottawa (YOW).

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

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 30m 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?
As of July 2026, there are 3 operators available to choose from 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?
momondo data reveals that the most frequently booked plane model on the route from Washington, D.C. to Ottawa is Embraer 175 (Enhanced Winglets), representing 25.73% of all bookings. The subsequent popular models are Canadair (Bombardier) Regional Jet CRJ-550 at 23.20%, Canadair (Bombardier) Regional Jet 900 at 10.29%, and Boeing 737-800 at 8.06%.
What is the most popular airline from Washington, D.C. to Ottawa?
Based on momondo bookings for flights between Washington, D.C. and Ottawa, the leading airline is Air Canada, making up 54% of the total bookings. Other popular airlines include United Airlines with 30% and Porter Airlines with 16%.

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 Airlines	PriceFrom $169	Free Cancellation	Rating 8.0 445 reviews	Search Porter Airlines flights
Air Canada	PriceFrom $203	Free Cancellation	Rating 7.1 11,352 reviews	Search Air Canada flights
United Airlines	PriceFrom $218	Free Cancellation	Rating 7.4 10,005 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 34 flights on this route every week with an average price of $541. United Airlines is rated 7.4/10 by our users.
Air Canada Flights From Washington, D.C. to Ottawa
Across 11,352 Air Canada reviews on momondo, the average score is 7.1/10. Air Canada flies from Washington, D.C. to Ottawa about 34 times each week, with ticket deals ranging from $203 to $509. Price data is based on momondo searches in the last 72 hours.

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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.

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Cheap flights from Washington, D.C. to Ottawa from $150

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 8/17. 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 Washington, D.C. to Ottawa

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

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

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

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

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?

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

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

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

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

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

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

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

What airlines fly to Ottawa?

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

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

How long does it take to fly to Ottawa?

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

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

Best Price Found

Fastest flight time

Direct flights

Airports in Ottawa

Frequently asked questions about flying 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

Traveling to a place near Ottawa?

Why use momondo?

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.

Get notified when prices go down

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

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