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

As of September 2026, 6 flights take off from Ottawa and land in Washington, D.C. Dulles Intl Airport each day. The most common flight departure time for this route is 10:00a.m., with 47% of daily flights taking off at noon.

Which airlines fly to Washington, D.C. Dulles Intl Airport?

Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to Washington, D.C. Dulles Intl Airport from Ottawa according to our data. Air Canada is the first choice among our users, with 43% of people opting to fly with this airline when travelling to Washington, D.C. Dulles Intl Airport. Keep in mind that there are 3 different airlines that fly to Washington, D.C. Dulles Intl Airport 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. Dulles Intl?

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

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

The number of flights available between Ottawa and Washington, D.C. Dulles Intl Airport is 44 per week as of September 2026. The most frequent departure day is Tue, with 20% of weekly flights leaving on this day.

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

Prices for flights from Ottawa Airport to Washington, D.C. Dulles Intl Airport refresh daily.

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

As of September 2026, there are 3 operators available to choose from for flights from Ottawa Airport to Washington, D.C. Dulles Intl Airport.

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

What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

The travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

C$ 240 Cheap Flights from Ottawa to Washington, D.C. Dulles Intl Airport in 2026

Discover deals from 900+ travel sites with momondo.

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

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:35 p.m. - 7:00 p.m.YOW Ottawa-IAD Washington, D.C. Dulles Intl

4h 25m1 stop Montreal Pierre Elliott Trudeau Intl

5:20 p.m. - 9:52 p.m.IAD Washington, D.C. Dulles Intl-YOW Ottawa

4h 32m1 stop Toronto Island

C$ 403Air Canada

Fri, 2 Oct - Mon, 5 Oct

11:10 a.m. - 3:00 p.m.YOW Ottawa-IAD Washington, D.C. Dulles Intl

3h 50m1 stop Montreal Pierre Elliott Trudeau Intl

5:20 p.m. - 9:52 p.m.IAD Washington, D.C. Dulles Intl-YOW Ottawa

4h 32m1 stop Toronto Island

C$ 403Air Canada

Wed, 30 Sep - Sun, 11 Oct

2:50 p.m. - 7:00 p.m.YOW Ottawa-IAD Washington, D.C. Dulles Intl

4h 10m1 stop Montreal Pierre Elliott Trudeau Intl

5:20 p.m. - 9:52 p.m.IAD Washington, D.C. Dulles Intl-YOW Ottawa

4h 32m1 stop Toronto Island

C$ 403Air Canada

Thu, 1 Oct - Mon, 5 Oct

10:40 a.m. - 3:10 p.m.YOW Ottawa-IAD Washington, D.C. Dulles Intl

4h 30m1 stop Toronto Island

3:50 p.m. - 9:42 p.m.IAD Washington, D.C. Dulles Intl-YOW Ottawa

5h 52m1 stop Toronto Island

C$ 425Porter Airlines

Thu, 1 Oct - Sun, 4 Oct

10:40 a.m. - 3:10 p.m.YOW Ottawa-IAD Washington, D.C. Dulles Intl

4h 30m1 stop Toronto Island

11:25 a.m. - 5:52 p.m.IAD Washington, D.C. Dulles Intl-YOW Ottawa

6h 27m1 stop Toronto Island

C$ 433Porter Airlines

Thu, 8 Oct - Tue, 13 Oct

10:40 a.m. - 3:10 p.m.YOW Ottawa-IAD Washington, D.C. Dulles Intl

4h 30m1 stop Toronto Island

3:50 p.m. - 8:02 p.m.IAD Washington, D.C. Dulles Intl-YOW Ottawa

4h 12m1 stop Toronto Island

C$ 433Porter Airlines

Fri, 9 Oct - Mon, 12 Oct

2:48 p.m. - 7:19 a.m.YOW Ottawa-IAD Washington, D.C. Dulles Intl

16h 31m1 stop Newark

5:37 p.m. - 7:27 p.m.IAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 50mdirect

C$ 491United Airlines

Wed, 2 Dec - Thu, 3 Dec

6:00 a.m. - 7:43 a.m.YOW Ottawa-IAD Washington, D.C. Dulles Intl

1h 43mdirect

5:20 p.m. - 9:52 p.m.IAD Washington, D.C. Dulles Intl-YOW Ottawa

4h 32m1 stop Toronto Island

C$ 505Multiple Airlines

Fri, 9 Oct - Mon, 12 Oct

10:00 a.m. - 11:44 a.m.YOW Ottawa-IAD Washington, D.C. Dulles Intl

1h 44mdirect

5:20 p.m. - 9:52 p.m.IAD Washington, D.C. Dulles Intl-YOW Ottawa

4h 32m1 stop Toronto Island

C$ 506Multiple Airlines

Sat, 17 Oct - Sat, 31 Oct

6:00 a.m. - 7:43 a.m.YOW Ottawa-IAD Washington, D.C. Dulles Intl

1h 43mdirect

10:10 p.m. - 11:54 p.m.IAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 44mdirect

C$ 567United Airlines

Fri, 9 Oct - Mon, 12 Oct

Cheap last-minute flights

Enter your travel dates to find the best prices.

12:15 p.m. - 4:38 p.m.YOW Ottawa-IAD Washington, D.C. Dulles Intl

4h 23m1 stop Toronto Island

3:45 p.m. - 8:50 p.m.IAD Washington, D.C. Dulles Intl-YOW Ottawa

5h 05m1 stop Montreal Pierre Elliott Trudeau Intl

C$ 695Air Canada

Sun, 13 Sep - Sat, 10 Oct

2:50 p.m. - 7:00 p.m.YOW Ottawa-IAD Washington, D.C. Dulles Intl

4h 10m1 stop Montreal Pierre Elliott Trudeau Intl

5:20 p.m. - 9:52 p.m.IAD Washington, D.C. Dulles Intl-YOW Ottawa

4h 32m1 stop Toronto Island

C$ 738Air Canada

Mon, 14 Sep - Tue, 22 Sep

2:50 p.m. - 7:00 p.m.YOW Ottawa-IAD Washington, D.C. Dulles Intl

4h 10m1 stop Montreal Pierre Elliott Trudeau Intl

5:20 p.m. - 9:52 p.m.IAD Washington, D.C. Dulles Intl-YOW Ottawa

4h 32m1 stop Toronto Island

C$ 740Air Canada

Mon, 14 Sep - Mon, 21 Sep

6:25 p.m. - 10:17 a.m.YOW Ottawa-IAD Washington, D.C. Dulles Intl

39h 52m2 stops Toronto Pearson Intl Orlando

11:25 a.m. - 7:07 p.m.IAD Washington, D.C. Dulles Intl-YOW Ottawa

7h 42m1 stop Toronto Island

C$ 775Multiple Airlines

Sun, 13 Sep - Sat, 10 Oct

6:25 p.m. - 10:17 a.m.YOW Ottawa-IAD Washington, D.C. Dulles Intl

39h 52m2 stops Toronto Pearson Intl Orlando

3:50 p.m. - 12:52 p.m.IAD Washington, D.C. Dulles Intl-YOW Ottawa

21h 02m1 stop Toronto Island

C$ 794Multiple Airlines

Sun, 13 Sep - Sun, 20 Sep

7:00 a.m. - 8:09 p.m.YOW Ottawa-IAD Washington, D.C. Dulles Intl

13h 09m2 stops Toronto Pearson Intl Fort Lauderdale

11:25 a.m. - 11:27 a.m.IAD Washington, D.C. Dulles Intl-YOW Ottawa

24h 02m1 stop Toronto Island

C$ 801Multiple Airlines

Thu, 10 Sep - Tue, 29 Sep

8:50 p.m. - 10:45 a.m.YOW Ottawa-IAD Washington, D.C. Dulles Intl

13h 55m1 stop Toronto Island

11:25 a.m. - 5:52 p.m.IAD Washington, D.C. Dulles Intl-YOW Ottawa

6h 27m1 stop Toronto Island

C$ 874Porter Airlines

Mon, 14 Sep - Tue, 22 Sep

8:50 p.m. - 3:10 p.m.YOW Ottawa-IAD Washington, D.C. Dulles Intl

18h 20m1 stop Toronto Island

11:25 a.m. - 11:27 a.m.IAD Washington, D.C. Dulles Intl-YOW Ottawa

24h 02m1 stop Toronto Island

C$ 885Porter Airlines

Thu, 10 Sep - Tue, 29 Sep

3:10 p.m. - 9:28 p.m.YOW Ottawa-IAD Washington, D.C. Dulles Intl

6h 18m1 stop Newark

8:15 a.m. - 9:56 a.m.IAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 41mdirect

C$ 1,004United Airlines

Sat, 12 Sep - Sun, 13 Sep

5:57 p.m. - 10:59 p.m.YOW Ottawa-IAD Washington, D.C. Dulles Intl

5h 02m1 stop Newark

12:35 p.m. - 2:17 p.m.IAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 42mdirect

C$ 1,062United Airlines

Tue, 15 Sep - Thu, 17 Sep

Cheap direct flights

Enter your travel dates to find the best prices.

6:00 a.m. - 7:43 a.m.YOW Ottawa-IAD Washington, D.C. Dulles Intl

1h 43mdirect

8:15 a.m. - 9:56 a.m.IAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 41mdirect

C$ 483Air Canada

Fri, 9 Oct - Mon, 12 Oct

7:30 p.m. - 9:14 p.m.YOW Ottawa-IAD Washington, D.C. Dulles Intl

1h 44mdirect

12:35 p.m. - 2:17 p.m.IAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 42mdirect

C$ 483Air Canada

Wed, 30 Sep - Sun, 11 Oct

10:00 a.m. - 11:44 a.m.YOW Ottawa-IAD Washington, D.C. Dulles Intl

1h 44mdirect

10:10 p.m. - 11:54 p.m.IAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 44mdirect

C$ 483Air Canada

Fri, 9 Oct - Mon, 12 Oct

6:00 a.m. - 7:43 a.m.YOW Ottawa-IAD Washington, D.C. Dulles Intl

1h 43mdirect

10:10 p.m. - 11:54 p.m.IAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 44mdirect

C$ 483Air Canada

Fri, 2 Oct - Mon, 5 Oct

6:00 a.m. - 7:43 a.m.YOW Ottawa-IAD Washington, D.C. Dulles Intl

1h 43mdirect

10:10 p.m. - 11:54 p.m.IAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 44mdirect

C$ 567United Airlines

Fri, 9 Oct - Mon, 12 Oct

9:45 a.m. - 11:48 a.m.YOW Ottawa-IAD Washington, D.C. Dulles Intl

2h 03mdirect

5:37 p.m. - 7:27 p.m.IAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 50mdirect

C$ 567United Airlines

Mon, 23 Nov - Sun, 29 Nov

2:00 p.m. - 3:53 p.m.YOW Ottawa-IAD Washington, D.C. Dulles Intl

1h 53mdirect

5:37 p.m. - 7:27 p.m.IAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 50mdirect

C$ 585United Airlines

Wed, 2 Dec - Thu, 3 Dec

2:00 p.m. - 4:01 p.m.YOW Ottawa-IAD Washington, D.C. Dulles Intl

2h 01mdirect

1:20 p.m. - 3:10 p.m.IAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 50mdirect

C$ 622Multiple Airlines

Thu, 14 Jan - Sun, 17 Jan

2:00 p.m. - 3:55 p.m.YOW Ottawa-IAD Washington, D.C. Dulles Intl

1h 55mdirect

5:45 p.m. - 7:32 p.m.IAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 47mdirect

C$ 622Multiple Airlines

Mon, 8 Mar - Sun, 14 Mar

7:30 p.m. - 9:14 p.m.YOW Ottawa-IAD Washington, D.C. Dulles Intl

1h 44mdirect

8:15 a.m. - 9:56 a.m.IAD Washington, D.C. Dulles Intl-YOW Ottawa

1h 41mdirect

C$ 649Multiple Airlines

Thu, 1 Oct - Sun, 4 Oct

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

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

Porter Airlines

1 Oct

YOW10:40 a.m.Ottawa

4h 30m

1 stop

IAD3:10 p.m.Washington, D.C. Dulles Intl

4 Oct

IAD3:50 p.m.Washington, D.C. Dulles Intl

5h 52m

1 stop

YOW9:42 p.m.Ottawa

C$ 425

Porter Airlines

8 Oct

YOW10:40 a.m.Ottawa

4h 30m

1 stop

IAD3:10 p.m.Washington, D.C. Dulles Intl

13 Oct

IAD11:25 a.m.Washington, D.C. Dulles Intl

6h 27m

1 stop

YOW5:52 p.m.Ottawa

C$ 433

Porter Airlines

1 Oct

YOW10:40 a.m.Ottawa

4h 30m

1 stop

IAD3:10 p.m.Washington, D.C. Dulles Intl

5 Oct

IAD3:50 p.m.Washington, D.C. Dulles Intl

5h 52m

1 stop

YOW9:42 p.m.Ottawa

C$ 434

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

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

Air Canada

30 Sep

YOW11:10 a.m.Ottawa

3h 50m

1 stop

IAD3:00 p.m.Washington, D.C. Dulles Intl

11 Oct

IAD5:20 p.m.Washington, D.C. Dulles Intl

4h 32m

1 stop

YOW9:52 p.m.Ottawa

C$ 403

Air Canada

2 Dec

YOW10:05 a.m.Ottawa

5h 40m

1 stop

IAD3:45 p.m.Washington, D.C. Dulles Intl

3 Dec

IAD5:20 p.m.Washington, D.C. Dulles Intl

4h 32m

1 stop

YOW9:52 p.m.Ottawa

C$ 409

Air Canada

30 Sep

YOW2:35 p.m.Ottawa

4h 25m

1 stop

IAD7:00 p.m.Washington, D.C. Dulles Intl

7 Oct

IAD5:20 p.m.Washington, D.C. Dulles Intl

4h 32m

1 stop

YOW9:52 p.m.Ottawa

C$ 421

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaWashington, D.C.

YOW Ottawa - IAD Washington, D.C. Dulles Intl

YOWIAD

Ottawa

Fri 2/10

2:35 p.m.-7:00 p.m.

1 stop4h 25m

Washington, D.C. Dulles Intl

Mon 5/10

5:20 p.m.-9:52 p.m.

1 stop4h 32m

C$ 403

OttawaWashington, D.C.

YOW Ottawa - IAD Washington, D.C. Dulles Intl

YOWIAD

Ottawa

Wed 30/9

11:10 a.m.-3:00 p.m.

1 stop3h 50m

Washington, D.C. Dulles Intl

Sun 11/10

5:20 p.m.-9:52 p.m.

1 stop4h 32m

C$ 403

OttawaWashington, D.C.

YOW Ottawa - IAD Washington, D.C. Dulles Intl

YOWIAD

Ottawa

Thu 1/10

2:50 p.m.-7:00 p.m.

1 stop4h 10m

Washington, D.C. Dulles Intl

Mon 5/10

5:20 p.m.-9:52 p.m.

1 stop4h 32m

C$ 403

OttawaWashington, D.C.

YOW Ottawa - IAD Washington, D.C. Dulles Intl

YOWIAD

Ottawa

Thu 1/10

10:40 a.m.-3:10 p.m.

1 stop4h 30m

Washington, D.C. Dulles Intl

Sun 4/10

3:50 p.m.-9:42 p.m.

1 stop5h 52m

C$ 425

OttawaWashington, D.C.

YOW Ottawa - IAD Washington, D.C. Dulles Intl

YOWIAD

Ottawa

Thu 8/10

10:40 a.m.-3:10 p.m.

1 stop4h 30m

Washington, D.C. Dulles Intl

Tue 13/10

11:25 a.m.-5:52 p.m.

1 stop6h 27m

C$ 433

OttawaWashington, D.C.

YOW Ottawa - IAD Washington, D.C. Dulles Intl

YOWIAD

Ottawa

Fri 9/10

10:40 a.m.-3:10 p.m.

1 stop4h 30m

Washington, D.C. Dulles Intl

Mon 12/10

3:50 p.m.-8:02 p.m.

1 stop4h 12m

C$ 433

OttawaWashington, D.C.

YOW Ottawa - IAD Washington, D.C. Dulles Intl

YOWIAD

Ottawa

Wed 2/12

2:48 p.m.-7:19 a.m.

1 stop16h 31m

Washington, D.C. Dulles Intl

Thu 3/12

5:37 p.m.-7:27 p.m.

Nonstop1h 50m

C$ 491

OttawaWashington, D.C.

YOW Ottawa - IAD Washington, D.C. Dulles Intl

YOWIAD

Ottawa

Fri 9/10

6:00 a.m.-7:43 a.m.

Nonstop1h 43m

Washington, D.C. Dulles Intl

Mon 12/10

5:20 p.m.-9:52 p.m.

1 stop4h 32m

C$ 505

OttawaWashington, D.C.

YOW Ottawa - IAD Washington, D.C. Dulles Intl

YOWIAD

Ottawa

Sat 17/10

10:00 a.m.-11:44 a.m.

Nonstop1h 44m

Washington, D.C. Dulles Intl

Sat 31/10

5:20 p.m.-9:52 p.m.

1 stop4h 32m

C$ 506

Quickest round-trip

OttawaWashington, D.C.

YOW Ottawa - IAD Washington, D.C. Dulles Intl

YOWIAD

Ottawa

Fri 9/10

6:00 a.m.-7:43 a.m.

Nonstop1h 43m

Washington, D.C. Dulles Intl

Mon 12/10

10:10 p.m.-11:54 p.m.

Nonstop1h 44m

C$ 567

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 Ottawa to Washington, D.C. Dulles Intl Airport

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. Dulles Intl Airport?

Prices are currently low for flights on this route.

Typical prices usually range from C$ 572 to C$ 1,296.
The lowest price recently found on this route was C$ 403.

What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?

The cheapest month to fly to Washington, D.C. Dulles Intl Airport from Ottawa is in January. Flight prices, which tend to average around C$ 422, are often lower during this time because this is during the off-season. If you don’t want to visit Washington, D.C. Dulles Intl Airport in January, then you should wait until October to fly from Ottawa, when ticket prices are also cheap, with an average price of C$ 492.

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

According to our data, Thursday is the cheapest day to fly to Washington, D.C. Dulles Intl Airport from Ottawa. The lowest ticket price found for a Thursday departure recently was C$ 776. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. 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 Washington, D.C. Dulles Intl Airport on Sunday is C$ 931.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our most recent data shows that the best time of day to fly to Washington, D.C. Dulles Intl Airport is in the morning. Flights from Ottawa to Washington, D.C. Dulles Intl Airport during this time can be as low as C$ 765. At noon is when there is more demand to fly to Washington, D.C. Dulles Intl Airport, so prices are often more expensive at around C$ 1,059 per ticket.

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

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

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

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

You could potentially save up to 66% on your flight if you consider stops on a Ottawa to Washington, D.C. Dulles Intl Airport flight.

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

As of September 2026, prices for Ottawa to Washington, D.C. Dulles Intl Airport flights are approximately 1% cheaper when compared to flights at the same time last year.

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

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

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

Best price found	C$ 240
Fastest flight time	1h 43m
Direct flights	Every day

The best one-way flight to Washington, D.C. Dulles Intl Airport from Ottawa in the past 72 hours is C$ 240. The best round-trip flight deal from Ottawa to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is C$ 403.

The fastest flight from Ottawa to Washington, D.C. Dulles Intl Airport takes 1h 43m

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

Search flight deals

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

How far is Ottawa to Washington, D.C. Dulles Intl by plane?
Washington, D.C. Dulles Intl is 732.9 km away from Ottawa. 1h 43m is a normal flight duration for this route.
When did momondo last update prices for flights from Ottawa Airport to Washington, D.C. Dulles Intl Airport?
Prices for flights from Ottawa Airport to Washington, D.C. Dulles Intl Airport refresh daily.
How many operators does momondo search for flights from Ottawa Airport to Washington, D.C. Dulles Intl Airport?
As of September 2026, there are 3 operators available to choose from for flights from Ottawa Airport to Washington, D.C. Dulles Intl Airport.
How old do you have to be to fly from Ottawa Airport to Washington, D.C. Dulles Intl 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 Ottawa Airport to Washington, D.C. Dulles Intl Airport.
What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?
The travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport. 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. Dulles Intl Airport?
momondo data reveals that the most frequently booked plane model on the route from Ottawa to Washington, D.C. Dulles Intl Airport is Embraer 175 (Enhanced Winglets), representing 32.06% of all bookings. The subsequent popular models are Canadair (Bombardier) Regional Jet CRJ-550 at 30.79%, Embraer 195 E2 at 9.98%, and Canadair (Bombardier) Regional Jet 900 at 5.94%.
What is the most popular airline from Ottawa to Washington, D.C. Dulles Intl Airport?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Ottawa to Washington, D.C. Dulles Intl Airport is Air Canada (40% of total bookings). The next most popular airlines are Porter Airlines (32%) and United Airlines (28%).

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

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

Airline	Rating	Free Cancellation	Price
Porter Airlines	PriceFrom C$ 315	Free Cancellation	Rating 8.0 460 reviews	Search Porter Airlines flights
United Airlines	PriceFrom C$ 358	Free Cancellation	Rating 7.4 10,194 reviews	Search United Airlines flights
Air Canada	PriceFrom C$ 485	Free Cancellation	Rating 7.1 11,608 reviews	Search Air Canada flights

United Airlines Flights From Ottawa to Washington, D.C. Dulles Intl Airport
United Airlines operates around 17 flights from Ottawa to Washington, D.C. Dulles Intl Airport every week. The average price of these flights found in the last 72 hours has been C$ 564, but momondo users have found United Airlines deals from Ottawa to Washington, D.C. Dulles Intl Airport from as low as C$ 358 round-trip. United Airlines has been scored 7.4/10 in 10,194 reviews.
Air Canada Flights From Ottawa to Washington, D.C. Dulles Intl Airport
Air Canada is also a popular choice for this route. Air Canada flight deals for Ottawa to Washington, D.C. Dulles Intl Airport start from as low as C$ 485 round-trip, depending on your selected dates, with average Air Canada deals seen on momondo around C$ 652. Air Canada operates 25 flights to Washington, D.C. Dulles Intl Airport from Ottawa in an average week. Users have rated it 7.1/10 across 11,608 reviews.

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ottawa to Washington, D.C. . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ottawa to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Washington, D.C. from Ottawa with this policy.

How can momondo help me find flights from Ottawa to Washington, D.C.?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington, D.C. from Ottawa.

I’m not ready to book a flight from Ottawa to Washington, D.C. right now. Can momondo alert me if prices change?

Price alerts on flights to Washington, D.C. from Ottawa 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 Ottawa to Washington, D.C. from C$ 240

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 10/10. 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. Dulles Intl Airport

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

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Why use momondo?

An easier way to manage your Washington, D.C. Dulles Intl Airport 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.

Find better results for your trip to Washington, D.C.

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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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