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Cheap flights from Washington, D.C. Dulles Intl Airport to Ottawa from $143

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. Dulles Intl Airport to Ottawa departing on 2/17. 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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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Ottawa

Cheap round-trip flights

These are some of the best round-trip flight deals from Washington, D.C. Dulles Intl Airport to Ottawa that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Washington, D.C. Dulles Intl Airport to Ottawa.

Cheap last minute flights

Planning a quick getaway from Washington, D.C. Dulles Intl Airport to Ottawa? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Ottawa, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Washington, D.C. Dulles Intl Airport to Ottawa

Find recent round-trip train or bus tickets from Washington, D.C. Dulles Intl Airport to Ottawa.

All round-trip flight deals to Ottawa

The cheapest plane tickets to Ottawa found on KAYAK recently.
2:10 pm - 8:34 pmIAD-YOW
6h 24m1 stop
9:30 am - 12:49 pmYOW-IAD
3h 19m1 stop
$300Porter Airlines
Find Deal
Thu, Feb 20 - Mon, Feb 24
2:10 pm - 8:34 pmIAD-YOW
6h 24m1 stop
9:30 am - 12:49 pmYOW-IAD
3h 19m1 stop
$314Porter Airlines
Find Deal
Mon, Feb 17 - Tue, Feb 18
2:10 pm - 8:34 pmIAD-YOW
6h 24m1 stop
7:30 pm - 9:23 pmYOW-IAD
1h 53mnonstop
Thu, Feb 20 - Mon, Feb 24
10:15 pm - 11:54 pmIAD-YOW
1h 39mnonstop
2:05 pm - 3:58 pmYOW-IAD
1h 53mnonstop
$379Air Canada
Find Deal
Tue, Feb 18 - Thu, Feb 20
8:24 am - 3:03 pmIAD-YOW
6h 39m1 stop
9:45 am - 11:38 amYOW-IAD
1h 53mnonstop
$384Air Canada
Find Deal
Tue, Feb 18 - Thu, Feb 20
8:35 am - 4:16 pmIAD-YOW
7h 41m1 stop
7:30 pm - 9:23 pmYOW-IAD
1h 53mnonstop
Fri, Feb 21 - Sun, Feb 23
8:20 am - 1:23 pmIAD-YOW
5h 03m1 stop
7:30 pm - 9:23 pmYOW-IAD
1h 53mnonstop
$391United Airlines
Find Deal
Thu, Feb 20 - Sun, Feb 23
12:50 pm - 2:29 pmIAD-YOW
1h 39mnonstop
7:30 pm - 9:23 pmYOW-IAD
1h 53mnonstop
$393United Airlines
Find Deal
Thu, Feb 20 - Sun, Feb 23
6:05 am - 8:50 pmIAD-YOW
14h 45m2 stops
9:35 pm - 3:53 pmYOW-IAD
18h 18m3 stops
$659WestJet
Find Deal
Tue, Jan 14 - Wed, Jan 15
6:00 am - 7:19 pmIAD-YOW
13h 19m2 stops
5:55 am - 3:50 pmYOW-IAD
9h 55m2 stops
$671WestJet
Find Deal
Wed, Feb 5 - Wed, Feb 19
2:10 pm - 6:34 pmIAD-YOW
4h 24m1 stop
$143Porter Airlines
Find Deal
Mon, Feb 17
7:00 am - 11:14 amIAD-YOW
4h 14m1 stop
$156Porter Airlines
Find Deal
Tue, Mar 18
7:00 am - 11:14 amIAD-YOW
4h 14m1 stop
$158Porter Airlines
Find Deal
Mon, Mar 24
7:00 am - 11:14 amIAD-YOW
4h 14m1 stop
$160Porter Airlines
Find Deal
Wed, Mar 5
12:50 pm - 2:29 pmIAD-YOW
1h 39mnonstop
$166United Airlines
Find Deal
Tue, Mar 18
8:24 am - 12:18 pmIAD-YOW
3h 54m1 stop
$171Air Canada
Find Deal
Tue, Mar 18
10:15 pm - 11:54 pmIAD-YOW
1h 39mnonstop
$224United Airlines
Find Deal
Mon, Feb 17
5:15 pm - 6:54 pmIAD-YOW
1h 39mnonstop
$256Air Canada
Find Deal
Mon, Mar 24
6:05 am - 8:47 pmIAD-YOW
38h 42m3 stops
Mon, Feb 17
3:00 pm - 12:22 amIAD-YOW
9h 22m2 stops
$359WestJet
Find Deal
Mon, May 26
2:10 pm - 8:34 pmIAD-YOW
6h 24m1 stop
8:35 am - 12:49 pmYOW-IAD
4h 14m1 stop
$650Porter Airlines
Find Deal
Wed, Jan 8 - Sun, Jan 12
7:00 am - 11:11 amIAD-YOW
4h 11m1 stop
9:30 am - 12:49 pmYOW-IAD
3h 19m1 stop
$704Porter Airlines
Find Deal
Mon, Jan 6 - Thu, Jan 9
5:08 pm - 6:54 pmIAD-YOW
1h 46mnonstop
2:05 pm - 3:58 pmYOW-IAD
1h 53mnonstop
$793Air Canada
Find Deal
Wed, Jan 8 - Sun, Jan 12
3:55 pm - 10:08 pmIAD-YOW
6h 13m1 stop
2:05 pm - 3:58 pmYOW-IAD
1h 53mnonstop
$798Air Canada
Find Deal
Wed, Jan 8 - Sun, Jan 12
2:10 pm - 6:34 pmIAD-YOW
4h 24m1 stop
9:15 pm - 12:49 pmYOW-IAD
15h 34m1 stop
$819Porter Airlines
Find Deal
Thu, Jan 9 - Thu, Jan 9
12:49 pm - 2:29 pmIAD-YOW
1h 40mnonstop
5:50 pm - 10:20 pmYOW-IAD
4h 30m1 stop
$883United Airlines
Find Deal
Thu, Jan 9 - Thu, Jan 9
5:45 pm - 10:01 pmIAD-YOW
4h 16m1 stop
6:00 am - 4:28 pmYOW-IAD
10h 28m2 stops
$1,137United Airlines
Find Deal
Wed, Jan 8 - Sun, Jan 12
6:00 am - 7:23 pmIAD-YOW
13h 23m2 stops
5:55 am - 3:53 pmYOW-IAD
9h 58m2 stops
$1,300WestJet
Find Deal
Mon, Jan 6 - Wed, Jan 8
6:00 am - 12:10 amIAD-YOW
18h 10m2 stops
5:55 am - 6:57 pmYOW-IAD
13h 02m2 stops
$1,352WestJet
Find Deal
Mon, Jan 6 - Thu, Jan 9
6:05 am - 1:23 pmIAD-YOW
7h 18m2 stops
5:50 pm - 11:21 amYOW-IAD
17h 31m2 stops
$1,360
Find Deal
Thu, Jan 9 - Thu, Jan 9
12:50 pm - 2:29 pmIAD-YOW
1h 39mnonstop
7:30 pm - 9:23 pmYOW-IAD
1h 53mnonstop
$337Air Canada
Find Deal
Thu, Feb 20 - Mon, Feb 24
10:15 pm - 11:54 pmIAD-YOW
1h 39mnonstop
2:05 pm - 3:58 pmYOW-IAD
1h 53mnonstop
$379Air Canada
Find Deal
Tue, Feb 18 - Thu, Feb 20
12:50 pm - 2:29 pmIAD-YOW
1h 39mnonstop
7:30 pm - 9:23 pmYOW-IAD
1h 53mnonstop
$393United Airlines
Find Deal
Thu, Feb 20 - Sun, Feb 23
12:50 pm - 2:29 pmIAD-YOW
1h 39mnonstop
2:05 pm - 3:58 pmYOW-IAD
1h 53mnonstop
$433United Airlines
Find Deal
Mon, Feb 17 - Tue, Feb 18
5:08 pm - 6:54 pmIAD-YOW
1h 46mnonstop
2:05 pm - 3:58 pmYOW-IAD
1h 53mnonstop
$465United Airlines
Find Deal
Sat, Feb 1 - Sat, Feb 8
12:50 pm - 2:29 pmIAD-YOW
1h 39mnonstop
7:30 pm - 9:23 pmYOW-IAD
1h 53mnonstop
$469United Airlines
Find Deal
Thu, Feb 20 - Sun, Feb 23
12:49 pm - 2:29 pmIAD-YOW
1h 40mnonstop
2:05 pm - 3:58 pmYOW-IAD
1h 53mnonstop
$492United Airlines
Find Deal
Sun, Jan 26 - Tue, Jan 28
12:50 pm - 2:29 pmIAD-YOW
1h 39mnonstop
7:30 pm - 9:23 pmYOW-IAD
1h 53mnonstop
Fri, Feb 21 - Sun, Feb 23
8:17 am - 9:58 amIAD-YOW
1h 41mnonstop
7:35 pm - 9:21 pmYOW-IAD
1h 46mnonstop
$503Air Canada
Find Deal
Fri, Apr 11 - Sun, Apr 13
5:08 pm - 6:54 pmIAD-YOW
1h 46mnonstop
9:45 am - 11:38 amYOW-IAD
1h 53mnonstop
$508Air Canada
Find Deal
Fri, Jan 17 - Tue, Jan 21

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
Feb 18
IAD10:15 pmWashington, D.C. Dulles Intl
1h 39m
YOW11:54 pmOttawa
Feb 20
YOW2:05 pmOttawa
1h 53m
IAD3:58 pmWashington, D.C. Dulles Intl
Air Canada
Feb 18
IAD8:24 amWashington, D.C. Dulles Intl
6h 39m
1 stop
YOW3:03 pmOttawa
Feb 20
YOW9:45 amOttawa
1h 53m
IAD11:38 amWashington, D.C. Dulles Intl
Air Canada
Feb 20
IAD8:30 amWashington, D.C. Dulles Intl
8h 28m
2 stops
YOW4:58 pmOttawa
Feb 24
YOW6:00 amOttawa
10h 16m
2 stops
IAD4:16 pmWashington, D.C. Dulles Intl

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

Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to Ottawa flight tickets
United Airlines
Feb 20
IAD8:20 amWashington, D.C. Dulles Intl
5h 03m
1 stop
YOW1:23 pmOttawa
Feb 23
YOW7:30 pmOttawa
1h 53m
IAD9:23 pmWashington, D.C. Dulles Intl
United Airlines
Feb 20
IAD12:50 pmWashington, D.C. Dulles Intl
1h 39m
YOW2:29 pmOttawa
Feb 23
YOW7:30 pmOttawa
1h 53m
IAD9:23 pmWashington, D.C. Dulles Intl
United Airlines
Feb 5
IAD8:22 amWashington, D.C. Dulles Intl
4h 58m
1 stop
YOW1:20 pmOttawa
Feb 19
YOW7:30 pmOttawa
1h 53m
IAD9:23 pmWashington, D.C. Dulles Intl

See travel insights to Ottawa from

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

What is the cheapest month to fly to Ottawa?

In general, April 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 $268. The month of May is another great option to travel to Ottawa, with average flight prices from Washington, D.C. Dulles Intl Airport averaging around $296.

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 Saturday. Travelers who choose to depart for Ottawa on a Saturday will often find tickets for as low as $320. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Ottawa on Sunday is $442.

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 $345. 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 afternoon when prices are $500 on average. Flights to Ottawa from Washington, D.C. Dulles Intl Airport in the afternoon 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

How far in advance should I book a flight to Ottawa?

We recommend purchasing flights from Washington, D.C. Dulles Intl Airport to Ottawa 38 days ahead of your departure date because this is when momondo users tend to see the best flight rates. On average, our users have found flights to Ottawa for $398. In the past 72 hours, momondo users found flights from Washington, D.C. Dulles Intl Airport to Ottawa for as low as $202.

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

There are 2 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 13% 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 January 2025, prices for Washington, D.C. Dulles Intl Airport to Ottawa flights are approximately 24% cheaper 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

$143

Fastest flight time

1h 38m

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 $143. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Ottawa found on momondo in the last 72 hours is $300.
The fastest flight from Washington, D.C. Dulles Intl Airport to Ottawa takes 1h 38m
Direct flights go from Washington, D.C. Dulles Intl Airport to Ottawa every day.
There is 1 airport near Ottawa: Ottawa (YOW)

  • 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 39m.

  • 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?

  • 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?

  • What is the most popular airline 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
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $176Free CancellationRating
7.0
8,493 reviews
Search Air Canada flights
United AirlinesPriceFrom $271Free CancellationRating
7.4
8,945 reviews
Search United Airlines flights
Porter AirlinesPriceFrom $273Free CancellationRating
7.9
275 reviews
Search Porter Airlines flights
Air TransatPriceFrom $347Free CancellationRating
7.8
386 reviews
Search Air Transat flights
  • United Airlines Flights From Washington, D.C. Dulles Intl Airport to Ottawa

    Across 11 United Airlines flights from Washington, D.C. Dulles Intl Airport to Ottawa this week, the average price was $564, with the best United Airlines deals starting from $271 round-trip. 8,963 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 8,493 Air Canada reviews on momondo, the average score is 7.0/10. Air Canada flies from Washington, D.C. Dulles Intl Airport to Ottawa about 11 times each week, with ticket deals ranging from $176 to $441. Price data is based on momondo searches in the last 72 hours.


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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