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Cheap flights from Ottawa to Washington, D.C. from $178

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 10/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
10:25 am - 12:00 pm
YOW
-
DCA
1h 35mnonstop
Air Canada Logo
12:40 pm - 2:10 pm
DCA
-
YOW
1h 30mnonstop
$340Air Canada
Fri, Sep 25 - Mon, Sep 28
Air Canada Logo
10:25 am - 12:00 pm
YOW
-
DCA
1h 35mnonstop
Air Canada Logo
12:40 pm - 2:11 pm
DCA
-
YOW
1h 31mnonstop
$347Air Canada
Fri, Jul 10 - Sat, Aug 1
Air Canada Logo
6:00 am - 10:18 am
YOW
-
DCA
4h 18m
1 stop
Air Canada Logo
8:40 pm - 1:35 am
DCA
-
YOW
4h 55m
1 stop
$348Air Canada
Fri, Jul 17 - Fri, Jul 24
Air Canada Logo
10:25 am - 12:00 pm
YOW
-
DCA
1h 35mnonstop
Air Canada Logo
4:20 pm - 8:50 pm
DCA
-
YOW
4h 30m
1 stop
$349Air Canada
Fri, Sep 25 - Mon, Sep 28
Air Canada Logo
10:25 am - 12:00 pm
YOW
-
DCA
1h 35mnonstop
Air Canada Logo
6:00 am - 10:35 am
DCA
-
YOW
4h 35m
1 stop
$351Air Canada
Sun, Jul 12 - Sat, Jul 18
Air Canada Logo
6:00 am - 10:18 am
YOW
-
DCA
4h 18m
1 stop
Air Canada Logo
12:40 pm - 2:11 pm
DCA
-
YOW
1h 31mnonstop
$352Air Canada
Thu, Jul 9 - Sun, Jul 12
United Airlines Logo
10:25 am - 12:00 pm
YOW
-
DCA
1h 35mnonstop
United Airlines Logo
10:30 am - 10:35 pm
DCA
-
YOW
12h 05m
1 stop
$354United Airlines
Sun, Sep 27 - Mon, Sep 28
Air Canada Logo
10:25 am - 12:00 pm
YOW
-
DCA
1h 35mnonstop
Air Canada Logo
8:40 pm - 1:35 am
DCA
-
YOW
4h 55m
1 stop
$357Air Canada
Fri, Jul 10 - Fri, Jul 31
Air Canada Logo
11:15 am - 3:38 pm
YOW
-
DCA
4h 23m
1 stop
Air Canada Logo
9:40 am - 1:54 pm
DCA
-
YOW
4h 14m
1 stop
$358Air Canada
Thu, Jul 9 - Sun, Jul 12
Air Canada Logo
10:25 am - 12:00 pm
YOW
-
DCA
1h 35mnonstop
Air Canada Logo
12:40 pm - 2:11 pm
DCA
-
YOW
1h 31mnonstop
$360Air Canada
Fri, Jul 10 - Fri, Jul 31

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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
Sep 27
YOW10:25 amOttawa
1h 35m
DCA12:00 pmWashington, D.C. Reagan-National
Sep 28
DCA10:30 amWashington, D.C. Reagan-National
12h 05m
1 stop
YOW10:35 pmOttawa
$354
United Airlines
Aug 12
YOW10:25 amOttawa
1h 35m
DCA12:00 pmWashington, D.C. Reagan-National
Aug 15
DCA12:40 pmWashington, D.C. Reagan-National
1h 31m
YOW2:11 pmOttawa
$374
United Airlines
Aug 12
YOW5:57 pmOttawa
4h 02m
1 stop
DCA9:59 pmWashington, D.C. Reagan-National
Aug 15
DCA12:40 pmWashington, D.C. Reagan-National
1h 31m
YOW2:11 pmOttawa
$380

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
Jul 17
YOW10:25 amOttawa
1h 35m
DCA12:00 pmWashington, D.C. Reagan-National
Jul 20
DCA12:40 pmWashington, D.C. Reagan-National
1h 31m
YOW2:11 pmOttawa
$340
Air Canada
Jul 10
YOW10:25 amOttawa
1h 35m
DCA12:00 pmWashington, D.C. Reagan-National
Aug 1
DCA12:40 pmWashington, D.C. Reagan-National
1h 31m
YOW2:11 pmOttawa
$347
Air Canada
Jul 17
YOW6:00 amOttawa
4h 18m
1 stop
DCA10:18 amWashington, D.C. Reagan-National
Jul 24
DCA8:40 pmWashington, D.C. Reagan-National
4h 55m
1 stop
YOW1:35 amOttawa
$348

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 June 19, 2026.
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

Cheapest round-trip
Quickest round-trip

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Fri 9/25

10:25 am-12:00 pm

Nonstop1h 35m

Washington, D.C. Reagan-National

Mon 9/28

12:40 pm-2:10 pm

Nonstop1h 30m

$340

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Fri 7/10

10:25 am-12:00 pm

Nonstop1h 35m

Washington, D.C. Reagan-National

Sat 8/1

12:40 pm-2:11 pm

Nonstop1h 31m

$347

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Fri 7/17

6:00 am-10:18 am

1 stop4h 18m

Washington, D.C. Reagan-National

Fri 7/24

8:40 pm-1:35 am

1 stop4h 55m

$348

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Fri 9/25

10:25 am-12:00 pm

Nonstop1h 35m

Washington, D.C. Reagan-National

Mon 9/28

4:20 pm-8:50 pm

1 stop4h 30m

$349

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Sun 7/12

10:25 am-12:00 pm

Nonstop1h 35m

Washington, D.C. Reagan-National

Sat 7/18

6:00 am-10:35 am

1 stop4h 35m

$351

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Thu 7/9

6:00 am-10:18 am

1 stop4h 18m

Washington, D.C. Reagan-National

Sun 7/12

12:40 pm-2:11 pm

Nonstop1h 31m

$352

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Sun 9/27

10:25 am-12:00 pm

Nonstop1h 35m

Washington, D.C. Reagan-National

Mon 9/28

10:30 am-10:35 pm

1 stop12h 05m

$354

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Fri 7/10

10:25 am-12:00 pm

Nonstop1h 35m

Washington, D.C. Reagan-National

Fri 7/31

8:40 pm-1:35 am

1 stop4h 55m

$357

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Thu 7/9

11:15 am-3:38 pm

1 stop4h 23m

Washington, D.C. Reagan-National

Sun 7/12

9:40 am-1:54 pm

1 stop4h 14m

$358

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Fri 7/10

10:25 am-12:00 pm

Nonstop1h 35m

Washington, D.C. Reagan-National

Fri 7/31

12:40 pm-2:11 pm

Nonstop1h 31m

$360

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 typical price of a round-trip flight between Ottawa and Washington, D.C. Reagan-National Airport?

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

The month of January is, on average, the cheapest month to fly to Washington, D.C. Reagan-National Airport from Ottawa, with most prices found around $260. If you aren’t able to travel to Washington, D.C. Reagan-National Airport during the month of January, then flying in December is also cheap. Prices for this month can be found on momondo for an average of $347.

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 Saturday. Travelers who choose to depart for Washington, D.C. Reagan-National Airport on a Saturday will often find tickets for as low as $362. Flights from Ottawa to Washington, D.C. Reagan-National Airport on a Tuesday will generally be more expensive and average around $886. 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 Airport flights?

There are 3 cabin classes available to choose from on Ottawa to Washington, D.C. Reagan-National Airport 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

$222

Fastest flight time

1h 35m

Direct flights

Every day
The best one-way flight to Washington, D.C. Reagan-National Airport from Ottawa in the past 72 hours is $222. The best round-trip flight deal from Ottawa to Washington, D.C. Reagan-National Airport found on momondo in the last 72 hours is $388.
The fastest flight from Ottawa to Washington, D.C. Reagan-National Airport takes 1h 35m
Direct flights go from Ottawa to Washington, D.C. Reagan-National Airport every day.
Search flight deals

Frequently asked questions about flying from Ottawa to Washington, D.C. Reagan-National Airport

  • 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 35m.

  • 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 $284Free CancellationRating
7.1
11,220 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 $284 round-trip. Over the 6 Air Canada flights for this route in a normal week, average airfare is usually $410 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
Waldorf
Woodbridge
Laurel
Fredericksburg
Gaithersburg
Colonial Beach
Rockville
Linthicum Heights
Silver Spring
Towson
Manassas
Tysons
Springfield
Bethesda
Fairfax
College Park

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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