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Cheap flights from Ottawa to Washington, D.C. from $163

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 1/30. 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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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
10:30 am - 12:19 pm
YOW
-
DCA
1h 49mnonstop
Air Canada Logo
12:55 pm - 2:30 pm
DCA
-
YOW
1h 35mnonstop
$278Air Canada
Fri, Jan 16 - Sun, Jan 18
Air Canada Logo
10:30 am - 12:19 pm
YOW
-
DCA
1h 49mnonstop
Air Canada Logo
6:00 am - 9:42 am
DCA
-
YOW
3h 42m1 stop
$281Air Canada
Fri, Jan 16 - Sun, Jan 18
Air Canada Logo
12:00 pm - 6:05 pm
YOW
-
DCA
6h 05m1 stop
Air Canada Logo
6:00 am - 9:42 am
DCA
-
YOW
3h 42m1 stop
$288Air Canada
Fri, Jan 16 - Sun, Jan 18
Air Canada Logo
5:45 am - 10:23 am
YOW
-
DCA
4h 38m1 stop
Air Canada Logo
12:55 pm - 2:30 pm
DCA
-
YOW
1h 35mnonstop
$293Air Canada
Sat, Jan 17 - Sun, Jan 25
Air Canada Logo
2:05 pm - 7:45 pm
YOW
-
DCA
5h 40m1 stop
Air Canada Logo
12:55 pm - 2:30 pm
DCA
-
YOW
1h 35mnonstop
$297Air Canada
Mon, Jan 26 - Fri, Feb 6
United Airlines Logo
5:11 pm - 11:59 pm
YOW
-
DCA
6h 48m1 stop
United Airlines Logo
12:00 pm - 5:12 pm
DCA
-
YOW
5h 12m1 stop
$301United Airlines
Sat, Jan 17 - Sun, Jan 25
United Airlines Logo
5:11 pm - 10:48 pm
YOW
-
DCA
5h 37m1 stop
United Airlines Logo
11:10 am - 4:30 pm
DCA
-
YOW
5h 20m1 stop
$304United Airlines
Fri, Jan 16 - Fri, Jan 23
Air Canada Logo
10:30 am - 12:19 pm
YOW
-
DCA
1h 49mnonstop
Air Canada Logo
12:55 pm - 2:30 pm
DCA
-
YOW
1h 35mnonstop
$306Air Canada
Thu, Jan 29 - Mon, Feb 2
Air Canada Logo
10:30 am - 12:19 pm
YOW
-
DCA
1h 49mnonstop
Air Canada Logo
12:55 pm - 2:30 pm
DCA
-
YOW
1h 35mnonstop
$310Air Canada
Wed, Jan 14 - Wed, Jan 21
Air Canada Logo
10:30 am - 12:19 pm
YOW
-
DCA
1h 49mnonstop
Air Canada Logo
6:00 am - 9:42 am
DCA
-
YOW
3h 42m1 stop
$318Air Canada
Wed, Jan 14 - Wed, Jan 21

Air Canada flights from Ottawa to Washington, D.C. Reagan-National Airport

Our best Air Canada deals on Ottawa to Washington, D.C. Reagan-National Airport flight tickets
Air Canada
Jan 16
YOW10:30 amOttawa
1h 49m
DCA12:19 pmWashington, D.C. Reagan-National
Jan 18
DCA12:55 pmWashington, D.C. Reagan-National
1h 35m
YOW2:30 pmOttawa
$278
Find similar
Air Canada
Jan 16
YOW10:30 amOttawa
1h 49m
DCA12:19 pmWashington, D.C. Reagan-National
Jan 18
DCA6:00 amWashington, D.C. Reagan-National
3h 42m
1 stop
YOW9:42 amOttawa
$281
Find similar
Air Canada
Jan 16
YOW12:00 pmOttawa
6h 05m
1 stop
DCA6:05 pmWashington, D.C. Reagan-National
Jan 18
DCA6:00 amWashington, D.C. Reagan-National
3h 42m
1 stop
YOW9:42 amOttawa
$288
Find similar

United Airlines flights from Ottawa to Washington, D.C. Reagan-National Airport

Our best United Airlines deals on Ottawa to Washington, D.C. Reagan-National Airport flight tickets
United Airlines
Jan 17
YOW5:11 pmOttawa
6h 48m
1 stop
DCA11:59 pmWashington, D.C. Reagan-National
Jan 25
DCA12:00 pmWashington, D.C. Reagan-National
5h 12m
1 stop
YOW5:12 pmOttawa
$301
Find similar
United Airlines
Jan 16
YOW5:11 pmOttawa
5h 37m
1 stop
DCA10:48 pmWashington, D.C. Reagan-National
Jan 23
DCA11:10 amWashington, D.C. Reagan-National
5h 20m
1 stop
YOW4:30 pmOttawa
$304
Find similar
United Airlines
Jan 26
YOW5:11 pmOttawa
6h 48m
1 stop
DCA11:59 pmWashington, D.C. Reagan-National
Feb 5
DCA3:30 pmWashington, D.C. Reagan-National
5h 48m
1 stop
YOW9:18 pmOttawa
$312
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Ottawa to Washington, D.C. Reagan-National Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Ottawa to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Fri 1/16

10:30 am-12:19 pm

Nonstop1h 49m

Washington, D.C. Reagan-National

Sun 1/18

12:55 pm-2:30 pm

Nonstop1h 35m

$278

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Fri 1/16

10:30 am-12:19 pm

Nonstop1h 49m

Washington, D.C. Reagan-National

Sun 1/18

6:00 am-9:42 am

1 stop3h 42m

$281

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Fri 1/16

12:00 pm-6:05 pm

1 stop6h 05m

Washington, D.C. Reagan-National

Sun 1/18

6:00 am-9:42 am

1 stop3h 42m

$288

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Sat 1/17

5:45 am-10:23 am

1 stop4h 38m

Washington, D.C. Reagan-National

Sun 1/25

12:55 pm-2:30 pm

Nonstop1h 35m

$293

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Mon 1/26

2:05 pm-7:45 pm

1 stop5h 40m

Washington, D.C. Reagan-National

Fri 2/6

12:55 pm-2:30 pm

Nonstop1h 35m

$297

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Sat 1/17

5:11 pm-11:59 pm

1 stop6h 48m

Washington, D.C. Reagan-National

Sun 1/25

12:00 pm-5:12 pm

1 stop5h 12m

$301

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Fri 1/16

5:11 pm-10:48 pm

1 stop5h 37m

Washington, D.C. Reagan-National

Fri 1/23

11:10 am-4:30 pm

1 stop5h 20m

$304

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Thu 1/29

10:30 am-12:19 pm

Nonstop1h 49m

Washington, D.C. Reagan-National

Mon 2/2

12:55 pm-2:30 pm

Nonstop1h 35m

$306

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Wed 1/14

10:30 am-12:19 pm

Nonstop1h 49m

Washington, D.C. Reagan-National

Wed 1/21

12:55 pm-2:30 pm

Nonstop1h 35m

$310

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Wed 1/14

10:30 am-12:19 pm

Nonstop1h 49m

Washington, D.C. Reagan-National

Wed 1/21

6:00 am-9:42 am

1 stop3h 42m

$318

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

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

What is the cheapest month to fly to Washington, D.C. Reagan-National Airport?

The month of March is, on average, the cheapest month to fly to Washington, D.C. Reagan-National Airport from Ottawa, with most prices found around $329. If you aren’t able to travel to Washington, D.C. Reagan-National Airport during the month of March, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $330.

What is the cheapest day to depart on your flight to Washington, D.C. Reagan-National Airport?

The cheapest day to depart from Ottawa to Washington, D.C. Reagan-National Airport is on a Monday. Travelers who choose to depart for Washington, D.C. Reagan-National Airport on a Monday will often find tickets for as low as $305. Flights from Ottawa to Washington, D.C. Reagan-National Airport on a Tuesday will generally be more expensive and average around $771. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Fly from Ottawa to Washington, D.C. Reagan-National for the best Ottawa - Washington, D.C. Reagan-National flight prices

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

There are 3 cabin classes available to choose from on Ottawa to Washington, D.C. Reagan-National flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Ottawa to Washington, D.C. Reagan-National Airport flight prices changed over time?

When to book flights from Ottawa to Washington, D.C. Reagan-National Airport

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

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

Best Price Found

$347

Fastest flight time

1h 36m

Direct flights

Mon, Tue, Wed, Thu, Fri and Sat
The best flight deal from Ottawa to Washington, D.C. Reagan-National Airport found on momondo in the last 72 hours is $347
The fastest flight from Ottawa to Washington, D.C. Reagan-National Airport takes 1h 36m
Direct flights go from Ottawa to Washington, D.C. Reagan-National Airport on Monday, Tuesday, Wednesday, Thursday, Friday and Saturday. The only airline offering direct flights is United Airlines.
Search flight deals

  • How far is Ottawa to Washington, D.C. Reagan-National by plane?

    A flight from Ottawa to Washington, D.C. Reagan-National will travel around 458.3 mi. In terms of flight time, this usually takes a little over 1h 36m.

  • When did momondo last update prices for flights from Ottawa Airport to Washington, D.C. Reagan-National Airport?

    Prices for flights from Ottawa Airport to Washington, D.C. Reagan-National Airport were last updated today.

  • How many operators does momondo search for flights from Ottawa Airport to Washington, D.C. Reagan-National Airport?

  • How old do you have to be to fly from Ottawa Airport to Washington, D.C. Reagan-National 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 Ottawa Airport to Washington, D.C. Reagan-National Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

    The travel and health documents required for your trip to Washington, D.C. Reagan-National 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 Washington, D.C. Reagan-National 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 Ottawa to Washington, D.C. Reagan-National Airport?

  • What is the most popular airline from Ottawa to Washington, D.C. Reagan-National Airport?

Best airlines flying from Ottawa to Washington, D.C. Reagan-National Airport

Compare and see reviews for airlines that fly from Ottawa to Washington, D.C. Reagan-National Airport with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $296Free CancellationRating
7.1
10,534 reviews
Search Air Canada flights

  • Air Canada Flights From Ottawa to Washington, D.C. Reagan-National Airport

    Air Canada flight deals from Ottawa to Washington, D.C. Reagan-National Airport start from $296 round-trip. Over the 5 Air Canada flights for this route in a normal week, average airfare is usually $373 round-trip - but some users have found much cheaper deals with momondo.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Gaithersburg
Reston
Manassas
Fairfax
Glen Burnie
Linthicum Heights
Bethesda

Why use momondo?

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

It is quick and easy to find Ottawa to Washington, D.C. 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 Washington, D.C. that suits you.

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

Flights from Ottawa to Washington, D.C. with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo provides multiple filters to help you find the best flight to Washington, D.C. from Ottawa. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Washington, D.C. from Ottawa. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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