How long is the flight from Ottawa to Washington, D.C.?

United Airlines and Air Canada can get you from Ottawa to Washington, D.C. in just under 1h 49m. Your travel time can differ by up to 23h 33m. There are 452 mi between Ottawa and Washington, D.C.. This flight may include one or multiple stops.

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

United Airlines, at $235, was found to be the cheapest airline from Ottawa to Washington, D.C.. An alternate airline flying to your destination would be Air Canada. These flights start at 43% lower than the current average price 3 months from now.

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What are the most popular routes from Ottawa to Washington, D.C.?

While some choose either Ottawa - Washington, D.C. Reagan-National or Ottawa - Baltimore/Washington, Ottawa - Washington, D.C. Dulles Intl is the most popular route from Ottawa to Washington, D.C..

What are the cheapest flights from Ottawa to Washington, D.C.?

While on average a flight from Ottawa to Washington, D.C. is generally $522, our data shows the cheapest flight currently is $234. When looking at the most popular route, (Ottawa - Washington, D.C. Dulles Intl), you can expect to pay $301 for that flight.

What are the most reliable airlines from Ottawa to Washington, D.C.?

Consider Avianca (94%), Republic Airways (90%) or Air Canada (81%) when booking your flight. These represent the most reliable airlines when flying from Ottawa to Washington, D.C..

Most accurate provider : When it comes to deals on Ottawa-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ottawa-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ottawa-Washington, D.C. flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Ottawa-Washington, D.C. flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ottawa-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

If you book a flight to Washington, D.C. from Ottawa, you will be flying from Ottawa, which is the city’s only airport. Ottawa (YOW) is located 6.6 mi from the center of Ottawa. There are 2 flights from Ottawa to Washington, D.C. per day from 2 different airlines.

Can I find deals for flights from Ottawa to Washington, D.C. that include hotel bookings?

Yes. In addition to deals on Ottawa to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Ottawa to Washington, D.C.?

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

Can I find deals for business class flights from Ottawa to Washington, D.C.?

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

$167+ Cheap Flights from Ottawa to Washington, D.C.

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Cheap flight deals from Ottawa to Washington, D.C.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Ottawa to Washington, D.C.
Explore the most affordable flight options available from Ottawa to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.

Mon 11/2312:15 pm -

1 stop5h 29m

Mon 11/3011:20 am -

1 stop5h 17m

Deal found 10/26

$317

Mon 11/2312:05 pm -

1 stop4h 42m

Mon 11/305:20 pm -

1 stop4h 32m

Deal found 10/26

$322

Sat 12/125:40 pm -

1 stop4h 19m

Sun 1/106:00 am -

1 stop3h 47m

Deal found 10/25

$325

Thu 11/192:00 pm -

Nonstop1h 53m

Mon 11/235:20 pm -

1 stop4h 32m

Deal found 10/27

$326

Sat 12/1210:05 am -

1 stop5h 40m

Sun 1/105:20 pm -

1 stop4h 32m

Deal found 10/25

$327

Fri 12/112:00 pm -

Nonstop1h 53m

Mon 12/145:20 pm -

1 stop4h 32m

Deal found 10/26

$328

Fri 11/275:45 am -

1 stop4h 39m

Sun 11/296:00 am -

1 stop5h 37m

Deal found 10/25

$328

Fri 12/1110:50 am -

1 stop4h 34m

Fri 12/188:45 pm -

1 stop4h 55m

Deal found 10/27

$330

Thu 11/192:00 pm -

Nonstop1h 53m

Mon 11/235:20 pm -

1 stop4h 32m

Deal found 10/26

$332

Fri 11/2712:05 pm -

1 stop4h 42m

Sun 11/295:20 pm -

1 stop4h 32m

Deal found 10/25

$340

Wed 12/26:00 am -

1 stop25h 22m

Thu 12/31:19 pm -

Nonstop1h 48m

Deal found 10/28

$341

Fri 11/1312:15 pm -

1 stop5h 29m

Sun 11/1511:20 am -

1 stop5h 17m

Deal found 10/28

$344

Best flights from Ottawa to Washington, D.C.
Discover carefully curated flight deals from Ottawa to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.

Wed 12/26:00 am -

1 stop25h 22m

Thu 12/31:19 pm -

Nonstop1h 48m

Deal found 10/28

$341

Wed 12/210:30 am -

Nonstop1h 49m

Thu 12/312:55 pm -

Nonstop1h 34m

Deal found 10/30

$368

Wed 1/69:45 am -

Nonstop2h 01m

Mon 1/115:20 pm -

1 stop4h 32m

Deal found 10/28

$420

Thu 12/105:45 am -

1 stop4h 44m

Thu 12/176:00 am -

1 stop5h 37m

Deal found 10/26

$369

Sat 12/59:45 am -

Nonstop2h 03m

Tue 12/81:19 pm -

Nonstop1h 48m

Deal found 10/28

$382

Thu 11/192:00 pm -

Nonstop1h 53m

Mon 11/238:37 am -

1 stop4h 34m

Deal found 10/27

$383

Thu 12/1710:50 am -

1 stop4h 34m

Mon 1/411:05 am -

1 stop4h 52m

Deal found 10/28

$385

Fri 11/139:45 am -

Nonstop2h 03m

Sun 11/155:20 pm -

1 stop4h 32m

Deal found 10/28

$432

Fri 12/44:36 pm -

1 stop6h 07m

Tue 12/89:00 am -

1 stop4h 11m

Deal found 10/28

$387

Fri 12/1110:30 am -

Nonstop1h 49m

Fri 12/186:00 am -

1 stop5h 37m

Deal found 10/27

$390

Sat 12/266:15 am -

1 stop13h 44m

Wed 12/306:00 am -

1 stop3h 47m

Deal found 10/26

$461

Wed 11/254:46 pm -

1 stop6h 01m

Tue 12/86:25 am -

1 stop7h 44m

Deal found 10/28

$388

Fri 11/204:46 pm -

1 stop5h 57m

Wed 12/97:42 am -

1 stop6h 27m

Deal found 10/28

$388

Mon 12/285:40 pm -

1 stop4h 19m

Fri 1/111:05 am -

1 stop4h 52m

Deal found 10/25

$441

Mon 11/236:00 am -

1 stop10h 28m

Wed 12/98:45 am -

1 stop5h 24m

Deal found 10/28

$388

Wed 11/185:45 am -

1 stop4h 39m

Fri 11/2012:55 pm -

Nonstop1h 34m

Deal found 10/27

$462

Tue 11/246:00 am -

1 stop8h 27m

Sat 12/56:25 am -

1 stop7h 44m

Deal found 10/28

$388

Thu 12/172:00 pm -

Nonstop2h 01m

Mon 1/45:29 pm -

1 stop4h 27m

Deal found 10/28

$403

Tue 1/126:00 am -

1 stop5h 51m

Fri 1/151:17 pm -

Nonstop1h 50m

Deal found 10/30

$436

Last-minute flights from Ottawa to Washington, D.C.
Discover last-minute flight deals from Ottawa to Washington, D.C.. Data last updated October 30, 2026 and is based on user searches.

Wed 11/1110:30 am -

Nonstop1h 49m

Sun 11/1512:55 pm -

Nonstop1h 34m

Deal found 10/28

$368

Fri 11/1312:15 pm -

1 stop5h 29m

Sun 11/1511:20 am -

1 stop5h 17m

Deal found 10/28

$344

Fri 11/1312:15 pm -

1 stop5h 29m

Thu 11/1911:20 am -

1 stop5h 17m

Deal found 10/30

$362

Thu 11/192:00 pm -

Nonstop1h 53m

Mon 11/235:20 pm -

1 stop4h 32m

Deal found 10/27

$326

Thu 11/192:00 pm -

Nonstop1h 53m

Mon 11/235:20 pm -

1 stop4h 32m

Deal found 10/26

$332

Thu 11/1910:30 am -

Nonstop1h 49m

Mon 11/236:00 am -

1 stop3h 47m

Deal found 10/26

$349

Mon 11/2312:15 pm -

1 stop5h 29m

Mon 11/3011:20 am -

1 stop5h 17m

Deal found 10/26

$317

Mon 11/2312:05 pm -

1 stop4h 42m

Mon 11/305:20 pm -

1 stop4h 32m

Deal found 10/26

$322

Mon 11/235:40 pm -

1 stop4h 19m

Mon 11/3012:55 pm -

Nonstop1h 34m

Deal found 10/26

$365

Thu 11/2610:30 am -

Nonstop1h 49m

Mon 11/3012:55 pm -

Nonstop1h 34m

Deal found 10/28

$352

Fri 11/275:45 am -

1 stop4h 39m

Sun 11/296:00 am -

1 stop5h 37m

Deal found 10/25

$328

Fri 11/2712:05 pm -

1 stop4h 42m

Sun 11/295:20 pm -

1 stop4h 32m

Deal found 10/25

$340

One-way flights from Ottawa to Washington, D.C.
Search for one-way flight options from Ottawa to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.

Sun 12/1312:15 pm -

1 stop5h 30m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/25

$167

Fri 12/412:15 pm -

1 stop5h 30m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/25

$170

Tue 11/245:40 pm -

1 stop4h 19m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/27

$175

Wed 12/22:00 pm -

1 stop6h 10m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/27

$180

Tue 12/152:55 pm -

1 stop5h 28m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/27

$181

Tue 12/1510:50 am -

1 stop4h 34m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/27

$181

Fri 12/115:30 am -

3 stops33h 19m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/27

$185

Fri 12/45:40 pm -

1 stop4h 19m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/25

$195

Mon 11/3012:05 pm -

1 stop4h 42m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/26

$196

Thu 12/3110:05 am -

1 stop5h 40m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/25

$200

Wed 12/212:50 pm -

1 stop6h 23m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/26

$200

Fri 12/43:15 pm -

2 stops26h 23m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/25

$202

Find flight deals from Ottawa to Washington, D.C.

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$317 (Justfly.com)
One-way from	$167 (FlightHub)
Popular in	May
Cheapest in	January
Average price	$428
Good round-trip deal	$393 or less
Good one-way deal	$258 or less

Provider with most accurate pricing for Ottawa-Washington, D.C. (WAS) flight deals.

Search Deals

Provider most trusted by Cheapflights users for Ottawa-Washington, D.C. (WAS) flights.

Search Deals

From Ottawa to Washington, D.C. (WAS)

Search Deals

One-way flight from Ottawa to Washington, D.C. (WAS)

Search Deals

Highest demand for flights based on searches. 9% potential increase in price ($42 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Price to beat on a round-trip flight from Ottawa to Washington, D.C. (WAS).

Search Deals

Price to beat on a one-way flight from Ottawa to Washington, D.C. (WAS).

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ottawa to Washington, D.C. 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 12/4

12:15 pm-5:45 pm

1 stop5h 30m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$170

OttawaWashington, D.C.

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

YOWDCA

Ottawa

Tue 11/24

5:40 pm-9:59 pm

1 stop4h 19m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$175

OttawaWashington, D.C.

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

YOWDCA

Ottawa

Thu 12/31

2:00 pm-7:58 pm

1 stop5h 58m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$195

OttawaWashington, D.C.

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

YOWDCA

Ottawa

Wed 12/9

5:40 pm-9:59 pm

1 stop4h 19m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$195

Quickest round-trip

OttawaWashington, D.C.

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

YOWDCA

Ottawa

Wed 12/2

10:30 am-12:19 pm

Nonstop1h 49m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$203

OttawaWashington, D.C.

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

YOWDCA

Ottawa

Wed 11/11

10:30 am-12:19 pm

Nonstop1h 49m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$203

OttawaWashington, D.C.

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

YOWIAD

Ottawa

Sat 12/12

2:00 pm-3:53 pm

Nonstop1h 53m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$209

OttawaWashington, D.C.

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

YOWIAD

Ottawa

Sat 11/21

2:00 pm-3:53 pm

Nonstop1h 53m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$209

OttawaWashington, D.C.

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

YOWIAD

Ottawa

Wed 12/2

2:00 pm-3:53 pm

Nonstop1h 53m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$209

OttawaWashington, D.C.

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

YOWIAD

Ottawa

Sun 12/13

9:45 am-11:48 am

Nonstop2h 03m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$209

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/25

Showing 1-10 of 39 resultsSorted by cheapest first

Compare providers for flights from Ottawa to Washington, D.C.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ottawa to Washington, D.C. in October.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy2 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Ottawa-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ottawa-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ottawa-Washington, D.C. flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Ottawa-Washington, D.C. flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ottawa-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ottawa to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Ottawa with our price prediction graph.

YOW-WAS

YOW-IAD

YOW-DCA

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ottawa to Washington, D.C.

YOW-WAS

YOW-IAD

YOW-DCA

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

Currently, January is the cheapest month in which you can book a flight from Ottawa to Washington, D.C. (average of $328). Flying from Ottawa to Washington, D.C. in October is currently the most expensive (average of $474). 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 WAS?

When flying from Ottawa to Washington, D.C., the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Airfare is below average for this route at the moment.

Ottawa to Washington, D.C. flights typically cost between $419 and $597 in November.
The cheapest round-trip price found within the last 5 days was $317 on Porter Airlines (Nov 23-Nov 30).

Reviews of airlines servicing Washington, D.C.

See what other customers who have flown with United Airlines and Air Canada from Ottawa to Washington, D.C. have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.3

Good

10,454 reviews

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

7.3

Good

10,454 reviews

United Airlines

7.3

Good

10,454 reviews

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

11,832 reviews

United Airlines

7.3

Good

10,454 reviews

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.?
If you book a flight to Washington, D.C. from Ottawa, you will be flying from Ottawa, which is the city’s only airport. Ottawa (YOW) is located 6.6 mi from the center of Ottawa. There are 2 flights from Ottawa to Washington, D.C. per day from 2 different airlines.
How long is the flight from Ottawa to Washington, D.C.?
United Airlines and Air Canada can get you from Ottawa to Washington, D.C. in just under 1h 49m. Your travel time can differ by up to 23h 33m. There are 452 mi between Ottawa and Washington, D.C.. This flight may include one or multiple stops.
What are the cheapest airlines flying from Ottawa to Washington, D.C. round-trip?
United Airlines, at $235, was found to be the cheapest airline from Ottawa to Washington, D.C.. An alternate airline flying to your destination would be Air Canada. These flights start at 43% lower than the current average price 3 months from now.
What are the most popular routes from Ottawa to Washington, D.C.?
While some choose either Ottawa - Washington, D.C. Reagan-National or Ottawa - Baltimore/Washington, Ottawa - Washington, D.C. Dulles Intl is the most popular route from Ottawa to Washington, D.C..
What are the most reliable airlines from Ottawa to Washington, D.C.?
Consider Avianca (94%), Republic Airways (90%) or Air Canada (81%) when booking your flight. These represent the most reliable airlines when flying from Ottawa to Washington, D.C..
What are the cheapest flights from Ottawa to Washington, D.C.?
While on average a flight from Ottawa to Washington, D.C. is generally $522, our data shows the cheapest flight currently is $234. When looking at the most popular route, (Ottawa - Washington, D.C. Dulles Intl), you can expect to pay $301 for that flight.
Can I find deals for flights from Ottawa to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on Ottawa to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ottawa to Washington, D.C.?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ottawa to Washington, D.C..
Can I find deals for business class flights from Ottawa to Washington, D.C.?
Yes. Cheapflights offers flight deals from Ottawa to Washington, D.C. 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.?
Currently, January is the cheapest month in which you can book a flight from Ottawa to Washington, D.C. (average of $328). Flying from Ottawa to Washington, D.C. in October is currently the most expensive (average of $474). 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.

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Alternative routes for Ottawa to Washington, D.C.

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Ottawa to Reagan-National flights

London to Dulles Intl flights

Top 2 airlines flying from Ottawa to Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$235	Average$400	FlexibilityNo cancel fee	On-time69%
Air Canada	Cheapest$295	Average$411	FlexibilityNo cancel fee	On-time67%

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$167+ Cheap flights from Ottawa (YOW) to Washington, D.C. (WAS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/13. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ottawa to Washington, D.C. with Cheapflights

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Cheap flight deals from Ottawa to Washington, D.C.

Cheapest flights from Ottawa to Washington, D.C.Explore the most affordable flight options available from Ottawa to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.

Explore the most affordable flight options available from Ottawa to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.

Best flights from Ottawa to Washington, D.C.Discover carefully curated flight deals from Ottawa to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.

Discover carefully curated flight deals from Ottawa to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.

Last-minute flights from Ottawa to Washington, D.C.Discover last-minute flight deals from Ottawa to Washington, D.C.. Data last updated October 30, 2026 and is based on user searches.

Discover last-minute flight deals from Ottawa to Washington, D.C.. Data last updated October 30, 2026 and is based on user searches.

One-way flights from Ottawa to Washington, D.C.Search for one-way flight options from Ottawa to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.

Search for one-way flight options from Ottawa to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.

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

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Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ottawa to Washington, D.C. in October.

Best time to book a flight from Ottawa to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Ottawa with our price prediction graph.

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

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

Find hourly flight availability from Ottawa to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2026.

When flying from Ottawa to Washington, D.C., the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Airfare is below average for this route at the moment.

Ottawa to Washington, D.C. flights typically cost between $419 and $597 in November.The cheapest round-trip price found within the last 5 days was $317 on Porter Airlines (Nov 23-Nov 30).

Reviews of airlines servicing Washington, D.C.

See what other customers who have flown with United Airlines and Air Canada from Ottawa to Washington, D.C. have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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How long is the flight from Ottawa to Washington, D.C.?

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

What are the most popular routes from Ottawa to Washington, D.C.?

What are the most reliable airlines from Ottawa to Washington, D.C.?

What are the cheapest flights from Ottawa to Washington, D.C.?

Can I find deals for flights from Ottawa to Washington, D.C. that include hotel bookings?

How can I find direct flights from Ottawa to Washington, D.C.?

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

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Alternative routes for Ottawa to Washington, D.C.

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Ottawa and Washington, D.C. flights

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Ottawa to Washington, D.C. flights

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Other flights to Washington, D.C.

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Cheapest flights from Ottawa to Washington, D.C.
Explore the most affordable flight options available from Ottawa to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.

Best flights from Ottawa to Washington, D.C.
Discover carefully curated flight deals from Ottawa to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.

Last-minute flights from Ottawa to Washington, D.C.
Discover last-minute flight deals from Ottawa to Washington, D.C.. Data last updated October 30, 2026 and is based on user searches.

One-way flights from Ottawa to Washington, D.C.
Search for one-way flight options from Ottawa to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.

Ottawa to Washington, D.C. flights typically cost between $419 and $597 in November.
The cheapest round-trip price found within the last 5 days was $317 on Porter Airlines (Nov 23-Nov 30).