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

Porter Airlines, Air Canada, 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 48% 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 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.

$145 Cheap Flights from Washington, D.C. Dulles Intl Airport to Ottawa in 2026

Q: 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 $578 to $463. The lowest price recently found on this route was $327.

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

As of April 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.

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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.

11:30 am - 5:54 pm

IAD

YOW

6h 24m

1 stop

11:00 am - 3:21 pm

YOW

IAD

4h 21m

1 stop

$327Porter Airlines

Tue, May 26 - Thu, May 28

5:26 pm - 12:15 pm

IAD

YOW

18h 49m

2 stops

4:20 pm - 5:52 pm

YOW

IAD

25h 32m

1 stop

$336Multiple Airlines

Tue, May 5 - Mon, May 18

4:05 pm - 8:04 pm

IAD

YOW

3h 59m

1 stop

11:00 am - 3:21 pm

YOW

IAD

4h 21m

1 stop

$339Porter Airlines

Wed, May 6 - Fri, May 8

11:40 am - 5:04 pm

IAD

YOW

5h 24m

1 stop

11:00 am - 3:21 pm

YOW

IAD

4h 21m

1 stop

$342Porter Airlines

Thu, Apr 30 - Sun, May 3

4:05 pm - 8:04 pm

IAD

YOW

3h 59m

1 stop

11:00 am - 3:21 pm

YOW

IAD

4h 21m

1 stop

$343Porter Airlines

Fri, May 1 - Sun, May 3

4:05 pm - 8:04 pm

IAD

YOW

3h 59m

1 stop

11:00 am - 3:21 pm

YOW

IAD

4h 21m

1 stop

$344Porter Airlines

Fri, May 1 - Sun, May 3

11:30 am - 5:54 pm

IAD

YOW

6h 24m

1 stop

11:00 am - 3:21 pm

YOW

IAD

4h 21m

1 stop

$345Porter Airlines

Tue, May 5 - Mon, May 18

4:05 pm - 8:04 pm

IAD

YOW

3h 59m

1 stop

11:00 am - 3:21 pm

YOW

IAD

4h 21m

1 stop

$346Porter Airlines

Sun, Jun 7 - Sun, Jun 14

4:05 pm - 8:04 pm

IAD

YOW

3h 59m

1 stop

11:00 am - 3:21 pm

YOW

IAD

4h 21m

1 stop

$347Porter Airlines

Wed, May 13 - Fri, May 15

4:05 pm - 8:04 pm

IAD

YOW

3h 59m

1 stop

11:00 am - 3:21 pm

YOW

IAD

4h 21m

1 stop

$348Porter Airlines

Fri, May 1 - Fri, May 8

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

Apr 20

IAD9:00 amWashington, D.C. Dulles Intl

8h 06m

1 stop

YOW5:06 pmOttawa

Apr 24

YOW7:15 amOttawa

8h 24m

1 stop

IAD3:39 pmWashington, D.C. Dulles Intl

$416

Air Canada

Apr 22

IAD8:15 amWashington, D.C. Dulles Intl

1h 48m

YOW10:03 amOttawa

Apr 27

YOW10:00 amOttawa

1h 50m

IAD11:50 amWashington, D.C. Dulles Intl

$518

Air Canada

Apr 21

IAD8:15 amWashington, D.C. Dulles Intl

1h 48m

YOW10:03 amOttawa

Apr 25

YOW7:30 pmOttawa

1h 48m

IAD9:18 pmWashington, D.C. Dulles Intl

$524

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

May 26

IAD11:30 amWashington, D.C. Dulles Intl

6h 24m

1 stop

YOW5:54 pmOttawa

May 28

YOW11:00 amOttawa

4h 21m

1 stop

IAD3:21 pmWashington, D.C. Dulles Intl

$327

Porter Airlines

May 6

IAD4:05 pmWashington, D.C. Dulles Intl

3h 59m

1 stop

YOW8:04 pmOttawa

May 8

YOW11:00 amOttawa

4h 21m

1 stop

IAD3:21 pmWashington, D.C. Dulles Intl

$339

Porter Airlines

Apr 30

IAD11:40 amWashington, D.C. Dulles Intl

5h 24m

1 stop

YOW5:04 pmOttawa

May 3

YOW11:00 amOttawa

4h 21m

1 stop

IAD3:21 pmWashington, D.C. Dulles Intl

$342

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

Tue 5/26

11:30 am-5:54 pm

1 stop6h 24m

Ottawa

Thu 5/28

11:00 am-3:21 pm

1 stop4h 21m

$327

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Tue 5/5

5:26 pm-12:15 pm

2 stops18h 49m

Ottawa

Mon 5/18

4:20 pm-5:52 pm

1 stop25h 32m

$336

Quickest round-trip

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Wed 5/6

4:05 pm-8:04 pm

1 stop3h 59m

Ottawa

Fri 5/8

11:00 am-3:21 pm

1 stop4h 21m

$339

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Thu 4/30

11:40 am-5:04 pm

1 stop5h 24m

Ottawa

Sun 5/3

11:00 am-3:21 pm

1 stop4h 21m

$342

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Fri 5/1

4:05 pm-8:04 pm

1 stop3h 59m

Ottawa

Sun 5/3

11:00 am-3:21 pm

1 stop4h 21m

$343

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Fri 5/1

4:05 pm-8:04 pm

1 stop3h 59m

Ottawa

Sun 5/3

11:00 am-3:21 pm

1 stop4h 21m

$344

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Tue 5/5

11:30 am-5:54 pm

1 stop6h 24m

Ottawa

Mon 5/18

11:00 am-3:21 pm

1 stop4h 21m

$345

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Sun 6/7

4:05 pm-8:04 pm

1 stop3h 59m

Ottawa

Sun 6/14

11:00 am-3:21 pm

1 stop4h 21m

$346

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Wed 5/13

4:05 pm-8:04 pm

1 stop3h 59m

Ottawa

Fri 5/15

11:00 am-3:21 pm

1 stop4h 21m

$347

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Fri 5/1

4:05 pm-8:04 pm

1 stop3h 59m

Ottawa

Fri 5/8

11:00 am-3:21 pm

1 stop4h 21m

$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 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?

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 Friday. Travelers who choose to depart for Ottawa on a Friday will often find tickets for as low as $462. 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 $540.

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 $472. 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 $867 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 to Ottawa flights?

There are 3 cabin classes available to choose from on Washington, D.C. Dulles Intl 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 32% 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 April 2026, prices for Washington, D.C. Dulles Intl Airport to Ottawa flights are approximately 57% 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	$203
Fastest flight time	1h 32m
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 $203. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Ottawa found on momondo in the last 72 hours is $471.

The fastest flight from Washington, D.C. Dulles Intl Airport to Ottawa takes 1h 32m

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 32m.
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 April 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 Canadair (Bombardier) Regional Jet CRJ-550, making up 34.39% of the total bookings. Other popular models include Embraer 175 (Enhanced Winglets) with 24.43%, Canadair (Bombardier) Regional Jet 900 with 7.69%, and Boeing 777 with 3.62%.
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 Air Canada, representing 38% of all bookings. The subsequent popular airlines are United Airlines at 37% and Porter Airlines at 26%.

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 8.0 432 reviews	Search Porter Airlines flights
Air Canada	PriceFrom $200	Free Cancellation	Rating 7.1 10,913 reviews	Search Air Canada flights
United Airlines	PriceFrom $204	Free Cancellation	Rating 7.4 9,559 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 $477, with the best United Airlines deals starting from $204 round-trip. 9,559 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 10,913 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 27 times each week, with ticket deals ranging from $200 to $501. Price data is based on momondo searches in the last 72 hours.

Gatineau

Pembroke

Calabogie

Petawawa

Smiths Falls

Brockville

Perth

Prescott

Winchester

Wakefield

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

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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 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

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

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

United Airlines Flights From Washington, D.C. Dulles Intl Airport to Ottawa

Air Canada Flights From Washington, D.C. Dulles Intl Airport to Ottawa

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