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

Porter Airlines and United Airlines are the most popular carriers operating from Washington, D.C. Dulles Intl to 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. Dulles Intl Airport according to our data. Air Canada is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Ottawa. Keep in mind that there are 3 different airlines that fly to Ottawa on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Washington, D.C. Dulles Intl Airport to Ottawa Airport were last updated today.

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

There are 3 operators available for flights from Washington, D.C. Dulles Intl Airport to Ottawa Airport as of July 2026.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Ottawa Airport.

What documentation or ID do you need to fly to Ottawa Airport?

The travel and health documents required for your trip to Ottawa Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ottawa Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Q: How many flights depart from Washington, D.C. Dulles Intl Airport to Ottawa on average per day?

As of July 2026, 8 flights take off from Washington, D.C. Dulles Intl Airport and land in Ottawa each day. The most common flight departure time for this route is 5:00PM, with 55% of daily flights taking off in the afternoon.

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington, D.C. Dulles Intl Airport 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

$315Porter Airlines

Sun, Sep 13 - Sun, Sep 20

3:50 pm - 8:02 pm

IAD

YOW

4h 12m

1 stop

10:40 am - 3:10 pm

YOW

IAD

4h 30m

1 stop

$316Porter Airlines

Fri, Sep 11 - Fri, Sep 18

3:50 pm - 9:44 pm

IAD

YOW

5h 54m

1 stop

10:40 am - 3:10 pm

YOW

IAD

4h 30m

1 stop

$316Porter Airlines

Thu, Aug 27 - Mon, Aug 31

6:13 pm - 3:15 pm

IAD

YOW

21h 02m

1 stop

6:25 pm - 10:45 am

YOW

IAD

16h 20m

1 stop

$335Multiple Airlines

Sun, Sep 13 - Sat, Sep 26

6:09 pm - 3:15 pm

IAD

YOW

21h 06m

1 stop

10:40 am - 3:10 pm

YOW

IAD

4h 30m

1 stop

$356Multiple Airlines

Sun, Sep 6 - Thu, Sep 10

5:20 pm - 9:52 pm

IAD

YOW

4h 32m

1 stop

12:15 pm - 4:38 pm

YOW

IAD

4h 23m

1 stop

$364Air Canada

Tue, Sep 8 - Sat, Sep 12

6:13 pm - 3:15 pm

IAD

YOW

21h 02m

1 stop

7:00 am - 8:09 pm

YOW

IAD

13h 09m

1 stop

$365Multiple Airlines

Sun, Sep 13 - Sat, Sep 26

5:20 pm - 9:52 pm

IAD

YOW

4h 32m

1 stop

6:00 am - 7:43 am

YOW

IAD

1h 43mnonstop

$399Air Canada

Tue, Sep 8 - Sat, Sep 12

12:35 pm - 2:17 pm

IAD

YOW

1h 42mnonstop

7:34 pm - 9:18 pm

YOW

IAD

1h 44mnonstop

$438United Airlines

Thu, Sep 10 - Sat, Sep 12

8:15 am - 9:56 am

IAD

YOW

1h 41mnonstop

10:00 am - 11:44 am

YOW

IAD

1h 44mnonstop

$438United Airlines

Wed, Aug 19 - Fri, Aug 21

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Porter Airlines flights from Washington, D.C. Dulles Intl Airport to Ottawa

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

Porter Airlines

Sep 13

IAD3:50 pmWashington, D.C. Dulles Intl

4h 12m

1 stop

YOW8:02 pmOttawa

Sep 20

YOW10:40 amOttawa

4h 30m

1 stop

IAD3:10 pmWashington, D.C. Dulles Intl

$315

Porter Airlines

Aug 27

IAD3:50 pmWashington, D.C. Dulles Intl

5h 54m

1 stop

YOW9:44 pmOttawa

Aug 31

YOW10:40 amOttawa

4h 30m

1 stop

IAD3:10 pmWashington, D.C. Dulles Intl

$316

Porter Airlines

Aug 20

IAD3:50 pmWashington, D.C. Dulles Intl

5h 54m

1 stop

YOW9:44 pmOttawa

Aug 25

YOW10:40 amOttawa

4h 30m

1 stop

IAD3:10 pmWashington, D.C. Dulles Intl

$320

Air Canada flights from Washington, D.C. Dulles Intl Airport to Ottawa

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

Air Canada

Sep 8

IAD5:20 pmWashington, D.C. Dulles Intl

4h 32m

1 stop

YOW9:52 pmOttawa

Sep 12

YOW6:00 amOttawa

1h 43m

IAD7:43 amWashington, D.C. Dulles Intl

$399

Air Canada

Sep 10

IAD8:15 amWashington, D.C. Dulles Intl

1h 41m

YOW9:56 amOttawa

Sep 13

YOW12:15 pmOttawa

4h 23m

1 stop

IAD4:38 pmWashington, D.C. Dulles Intl

$400

Air Canada

Aug 21

IAD5:20 pmWashington, D.C. Dulles Intl

4h 32m

1 stop

YOW9:52 pmOttawa

Aug 23

YOW12:15 pmOttawa

4h 26m

1 stop

IAD4:41 pmWashington, D.C. Dulles Intl

$408

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Sun 9/13

3:50 pm-8:02 pm

1 stop4h 12m

Ottawa

Sun 9/20

10:40 am-3:10 pm

1 stop4h 30m

$315

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Fri 9/11

3:50 pm-8:02 pm

1 stop4h 12m

Ottawa

Fri 9/18

10:40 am-3:10 pm

1 stop4h 30m

$316

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Thu 8/27

3:50 pm-9:44 pm

1 stop5h 54m

Ottawa

Mon 8/31

10:40 am-3:10 pm

1 stop4h 30m

$316

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Sun 9/13

6:13 pm-3:15 pm

1 stop21h 02m

Ottawa

Sat 9/26

6:25 pm-10:45 am

1 stop16h 20m

$335

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Sun 9/6

6:09 pm-3:15 pm

1 stop21h 06m

Ottawa

Thu 9/10

10:40 am-3:10 pm

1 stop4h 30m

$356

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Tue 9/8

5:20 pm-9:52 pm

1 stop4h 32m

Ottawa

Sat 9/12

12:15 pm-4:38 pm

1 stop4h 23m

$364

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Sun 9/13

6:13 pm-3:15 pm

1 stop21h 02m

Ottawa

Sat 9/26

7:00 am-8:09 pm

1 stop13h 09m

$365

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Tue 9/8

5:20 pm-9:52 pm

1 stop4h 32m

Ottawa

Sat 9/12

6:00 am-7:43 am

Nonstop1h 43m

$399

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Thu 9/10

12:35 pm-2:17 pm

Nonstop1h 42m

Ottawa

Sat 9/12

7:34 pm-9:18 pm

Nonstop1h 44m

$438

Quickest round-trip

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Wed 8/19

8:15 am-9:56 am

Nonstop1h 41m

Ottawa

Fri 8/21

10:00 am-11:44 am

Nonstop1h 44m

$438

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 Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport and Ottawa?

Prices are currently low for flights on this route.

Typical prices usually range from $446 to $524.
The lowest price recently found on this route was $315.

What is the cheapest month to fly to Ottawa?

In general, December is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Ottawa. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $358. The month of January is another great option to travel to Ottawa, with average flight prices from Washington, D.C. Dulles Intl Airport averaging around $360.

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

The cheapest day to depart from Washington, D.C. Dulles Intl Airport to Ottawa is on a Wednesday. Travelers who choose to depart for Ottawa on a Wednesday will often find tickets for as low as $477. 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 $568.

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. Dulles Intl Airport to Ottawa when you can find flight prices for as low as $486. 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 $1,104 on average. Flights to Ottawa from Washington, D.C. Dulles Intl Airport 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. Dulles Intl to Ottawa flight route?

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

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

There are 4 cabin classes available to choose from on Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport to Ottawa flights?

You could potentially save up to 34% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Ottawa flight.

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

As of July 2026, prices for Washington, D.C. Dulles Intl Airport to Ottawa flights are approximately 49% more expensive when compared to flights at the same time last year.

When to book flights from Washington, D.C. Dulles Intl Airport to Ottawa

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport to Ottawa (IAD to YOW) flight deals and tips

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

Best Price Found	$288
Fastest flight time	1h 41m
Direct flights	Every day
Airports in Ottawa	1 airport

The best one-way flight to Ottawa from Washington, D.C. Dulles Intl Airport in the past 72 hours is $288. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Ottawa found on momondo in the last 72 hours is $490.

The fastest flight from Washington, D.C. Dulles Intl Airport to Ottawa takes 1h 41m

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

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

Search flight deals

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

How far is Washington, D.C. Dulles Intl to Ottawa by plane?
There are 455.4 mi between Washington, D.C. Dulles Intl and Ottawa. By plane, this route typically takes 1h 41m.
When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Ottawa Airport?
Prices for flights from Washington, D.C. Dulles Intl Airport to Ottawa Airport were last updated today.
How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Ottawa Airport?
There are 3 operators available for flights from Washington, D.C. Dulles Intl Airport to Ottawa Airport as of July 2026.
How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Ottawa Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Ottawa Airport.
What documentation or ID do you need to fly to Ottawa Airport?
The travel and health documents required for your trip to Ottawa Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ottawa Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Washington, D.C. Dulles Intl Airport to Ottawa?
Based on momondo bookings for flights between Washington, D.C. Dulles Intl Airport and Ottawa, the leading plane model is Embraer 175 (Enhanced Winglets), making up 34.90% of the total bookings. Other popular models include Canadair (Bombardier) Regional Jet CRJ-550 with 30.20%, Canadair (Bombardier) Regional Jet 900 with 6.44%, and Embraer 175 with 3.22%.
What is the most popular airline from Washington, D.C. Dulles Intl Airport to Ottawa?
momondo data reveals that the most frequently booked airline on the route from Washington, D.C. Dulles Intl Airport to Ottawa is United Airlines, representing 46% of all bookings. The subsequent popular airlines are Air Canada at 29% and Porter Airlines at 25%.

Best airlines flying from Washington, D.C. Dulles Intl Airport to Ottawa

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

Airline	Rating	Free Cancellation	Price
Porter Airlines	PriceFrom $169	Free Cancellation	Rating 8.0 449 reviews	Search Porter Airlines flights
Air Canada	PriceFrom $206	Free Cancellation	Rating 7.1 11,406 reviews	Search Air Canada flights
United Airlines	PriceFrom $230	Free Cancellation	Rating 7.4 10,046 reviews	Search United Airlines flights

United Airlines Flights From Washington, D.C. Dulles Intl Airport to Ottawa
Across 27 United Airlines flights from Washington, D.C. Dulles Intl Airport to Ottawa this week, the average price was $514, with the best United Airlines deals starting from $230 round-trip. 10,046 users have rated United Airlines on momondo, with an average score of 7.4/10.
Air Canada Flights From Washington, D.C. Dulles Intl Airport to Ottawa
Across 11,406 Air Canada reviews on momondo, the average score is 7.1/10. Air Canada flies from Washington, D.C. Dulles Intl Airport to Ottawa about 28 times each week, with ticket deals ranging from $206 to $523. Price data is based on momondo searches in the last 72 hours.

Gatineau

Pembroke

Brockville

Petawawa

Perth

Calabogie

Smiths Falls

Prescott

Wakefield

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Ottawa for 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 all potential Washington, D.C. to Ottawa flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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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Porter Airlines flights from Washington, D.C. Dulles Intl Airport to Ottawa

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

Air Canada flights from Washington, D.C. Dulles Intl Airport to Ottawa

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

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

See travel insights to Ottawa from

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

What is the typical price of a round-trip flight between Washington, D.C. Dulles Intl Airport 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. Dulles Intl to Ottawa flight route?

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

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

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

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

What airlines fly to Ottawa?

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

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

When to book flights from Washington, D.C. Dulles Intl Airport to Ottawa

Cheap Washington, D.C. Dulles Intl Airport to Ottawa (IAD 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. Dulles Intl Airport to Ottawa

Best airlines flying from Washington, D.C. Dulles Intl Airport to Ottawa

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport 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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