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Cheap flights from Ottawa to Washington, D.C. Reagan-National Airport from C$ 251

YOW — DCA
4 Oct — 11 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ottawa to Reagan-National

Enter your travel dates to find the best prices.

Cheapest flights from Ottawa to Reagan-National

Fri 16/1010:35 a.m. -
Nonstop1h 34m
Fri 23/1012:50 p.m. -
Nonstop1h 32m
Deal found 1/9C$ 400
Thu 24/910:40 a.m. -
Nonstop1h 34m
Sun 27/912:55 p.m. -
Nonstop1h 32m
Deal found 3/9C$ 421
Thu 1/1010:25 a.m. -
Nonstop1h 35m
Sun 4/1012:50 p.m. -
Nonstop1h 32m
Deal found 1/9C$ 429
Fri 2/1010:25 a.m. -
Nonstop1h 35m
Mon 5/1012:50 p.m. -
Nonstop1h 32m
Deal found 3/9C$ 432
Thu 15/1010:35 a.m. -
Nonstop1h 34m
Mon 19/1012:50 p.m. -
Nonstop1h 32m
Deal found 3/9C$ 434

Find flight deals from Ottawa to Reagan-National

Round-trip from

C$ 400

One-way from

C$ 251

Popular in

July

Cheapest in

January

Average price

C$ 492

Good round-trip deal

C$ 517 or less

Good one-way deal

C$ 644 or less
Air Canada
  • Air Canada
  • 16/10-23/10
  • Nonstop
  • 3h 06m total
  • Ottawa to Washington, D.C.
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Air Canada
  • Air Canada
  • 10/10-31/12
  • Nonstop
  • 1h 34m total
  • Ottawa to Washington, D.C.
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Highest demand for flights based on searches. 12% potential increase in price (C$ 105 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 16 potential savings vs. average RT price).
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Average for round-trip flights in September 2026
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Price to beat on a round-trip flight from Ottawa to Washington, D.C. Reagan-National.
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Price to beat on a one-way flight from Ottawa to Washington, D.C. Reagan-National.
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Cheapflights Fare Finder

 
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 Ottawa - DCA Washington, D.C. Reagan-National

YOWDCA

Ottawa

Sat 10/10

10:35 a.m.-12:09 p.m.

Nonstop1h 34m

Washington, D.C. Reagan-National

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 253

OttawaWashington, D.C.

YOW Ottawa - DCA Washington, D.C. Reagan-National

YOWDCA

Ottawa

Thu 5/11

10:30 a.m.-12:19 p.m.

Nonstop1h 49m

Washington, D.C. Reagan-National

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 266

OttawaWashington, D.C.

YOW Ottawa - DCA Washington, D.C. Reagan-National

YOWDCA

Ottawa

Fri 2/10

6:00 a.m.-10:20 a.m.

1 stop4h 20m

Washington, D.C. Reagan-National

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 272

OttawaWashington, D.C.

YOW Ottawa - DCA Washington, D.C. Reagan-National

YOWDCA

Ottawa

Wed 30/9

5:50 p.m.-9:50 p.m.

1 stop4h 00m

Washington, D.C. Reagan-National

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 297

OttawaWashington, D.C.

YOW Ottawa - DCA Washington, D.C. Reagan-National

YOWDCA

Ottawa

Wed 16/9

7:00 a.m.-12:44 p.m.

1 stop5h 44m

Washington, D.C. Reagan-National

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 351

OttawaWashington, D.C.

YOW Ottawa - DCA Washington, D.C. Reagan-National

YOWDCA

Ottawa

Fri 2/10

7:00 a.m.-4:59 p.m.

2 stops33h 59m

Washington, D.C. Reagan-National

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 355

OttawaWashington, D.C.

YOW Ottawa - DCA Washington, D.C. Reagan-National

YOWDCA

Ottawa

Wed 16/9

10:40 a.m.-12:14 p.m.

Nonstop1h 34m

Washington, D.C. Reagan-National

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 362

OttawaWashington, D.C.

YOW Ottawa - DCA Washington, D.C. Reagan-National

YOWDCA

Ottawa

Tue 22/9

7:00 a.m.-6:13 p.m.

2 stops11h 13m

Washington, D.C. Reagan-National

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 398

OttawaWashington, D.C.

YOW Ottawa - DCA Washington, D.C. Reagan-National

YOWDCA

Ottawa

Wed 23/9

6:05 a.m.-9:46 a.m.

1 stop3h 41m

Washington, D.C. Reagan-National

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 440

OttawaWashington, D.C.

YOW Ottawa - DCA Washington, D.C. Reagan-National

YOWDCA

Ottawa

Thu 24/9

11:10 a.m.-3:40 p.m.

1 stop4h 30m

Washington, D.C. Reagan-National

Sun 27/9

6:00 a.m.-11:30 a.m.

1 stop5h 30m

C$ 442

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/9

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Best time to book a flight from Ottawa to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from Ottawa with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Ottawa to Washington, D.C. Reagan-National Airport

What is the cheapest month to book a flight from Ottawa to Washington, D.C. Reagan-National Airport?

Currently, January is the cheapest month in which you can book a flight from Ottawa to Washington, D.C. Reagan-National Airport (average of C$ 359). Flying from Ottawa to Washington, D.C. Reagan-National Airport in July is currently the most expensive (average of C$ 653). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from YOW to DCA?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ottawa to Washington, D.C. Reagan-National Airport as you normally would.

How much does it cost to fly round-trip from Ottawa to Washington, D.C. Reagan-National Airport?

Airfare is below average for this route at the moment.

Ottawa to Washington, D.C. Reagan-National Airport flights typically cost between C$ 475 and C$ 549 in October.
The cheapest round-trip price found within the last 5 days was C$ 400 on Air Canada (16 Oct-23 Oct).

Reviews of airlines servicing Reagan-National

Read reviews from past customers who have flown United Airlines and Air Canada from Ottawa to Washington, D.C. Reagan-National Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,160 reviews
Check prices

Entertainment

7.1

Boarding

7.7

Crew

8.1

Comfort

7.3

Overall

7.4

Food

6.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
10,160 reviews
United Airlines
7.4
Good
10,160 reviews
Check prices

Entertainment

7.1

Boarding

7.7

Crew

8.1

Comfort

7.3

Overall

7.4

Food

6.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Air Canada
7.1
Good
11,579 reviews
United Airlines
7.4
Good
10,160 reviews
Check prices

Entertainment

7.1

Boarding

7.7

Crew

8.1

Comfort

7.3

Overall

7.4

Food

6.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

  • What airport do you fly from for flights from Ottawa to Washington, D.C. Reagan-National?

    For a flight from Ottawa to Washington, D.C. Reagan-National, you will be flying from Ottawa. Ottawa (YOW) is just 10.6 km from the centre of the city. Ottawa is the only Ottawa airport and it handles 1 outbound flight to Washington, D.C. Reagan-National per day. 2 airlines have flights to Washington, D.C. Reagan-National from Ottawa on a regular basis.

  • How long is the flight from Ottawa to Washington, D.C. Reagan-National Airport?

    Departing from Ottawa to Washington, D.C. Reagan-National Airport will take you 3h 41m. There are 727 km between Ottawa and Washington, D.C. Reagan-National Airport. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from Ottawa to Washington, D.C. Reagan-National Airport round-trip?

    According to our current data, United Airlines (C$ 266), and Air Canada (C$ 359) offers the cheapest pricing from Ottawa to Washington, D.C. Reagan-National Airport. United Airlines is 49% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most reliable airlines from Ottawa to Washington, D.C. Reagan-National Airport?

    Before booking your flight to Washington, D.C. Reagan-National Airport from Ottawa, check out the most reliable airlines to get you to your destination on time: Air Canada (66%), Jazz (66%), United Airlines( 66%).

  • What are the cheapest flights from Ottawa to Washington, D.C. Reagan-National Airport?

    While on average a flight from Ottawa to Washington, D.C. Reagan-National Airport is generally C$ 835, our data shows the cheapest flight currently is C$ 335. When looking at the most popular route, (Ottawa - Washington, D.C. Reagan-National), you can expect to pay C$ 501 for that flight.

  • Can I find deals for flights from Ottawa to Reagan-National that include hotel bookings?

    Yes. In addition to deals on Ottawa to Reagan-National flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ottawa to Reagan-National?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ottawa to Reagan-National.

  • Can I find deals for business class flights from Ottawa to Reagan-National?

    Yes. Cheapflights offers flight deals from Ottawa to Reagan-National by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ottawa to Washington, D.C. Reagan-National Airport?

    Currently, January is the cheapest month in which you can book a flight from Ottawa to Washington, D.C. Reagan-National Airport (average of C$ 359). Flying from Ottawa to Washington, D.C. Reagan-National Airport in July is currently the most expensive (average of C$ 653). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Washington, D.C. Reagan-National Airport?

Book flights to Washington, D.C. Reagan-National Airport if you plan to visit one of these locations
Silver Spring
Alexandria
Hanover
Oxon Hill
Gaithersburg
Reston
Herndon
Ellicott City
Arlington
Fredericksburg
Rockville

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from Ottawa to Reagan-National

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 266AverageC$ 554FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 359AverageC$ 565FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

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How does Cheapflights help users find flights from Ottawa to Reagan-National?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Reagan-National from Ottawa today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Ottawa to Reagan-National?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Reagan-National from Ottawa.

Can Cheapflights find flights from Ottawa to Reagan-National with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ottawa to Reagan-National, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Ottawa to Reagan-National become cheaper?

Yes! Start tracking prices for Ottawa to Reagan-National flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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