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

Airlines like United Airlines and Air Canada fly from Ottawa to Washington, D.C. in about 4h 39m. The time it takes to get you to your destination can typically vary by up to 20h 41m. The distance between Ottawa and Washington, D.C. is about 727 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

Flying on United Airlines is currently your cheapest option to Washington, D.C., with prices starting at C$ 274. Additional round-trip tickets that might be worth considering are offered by Porter Airlines and Air Canada, with the lowest prices starting at C$ 325 and C$ 370, respectively. These flights start at 53% lower than the current average price 3 months from now.

In terms of precipitation, rainfall in Washington, D.C. ranges from 66.0 - 102.0 mm per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. when rainfall is around 66.0 mm.

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 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

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

The most popular flight routes from Ottawa to Washington, D.C. are Ottawa - Washington, D.C. Dulles Intl, Ottawa - Washington, D.C. Reagan-National and Ottawa - Baltimore/Washington.

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

The cheapest flight price from Ottawa to Washington, D.C. is C$ 269. On average you can expect to pay C$ 891. The most popular route, (Ottawa - Washington, D.C. Dulles Intl), can usually be booked for C$ 468.

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

The top 3 most reliable airlines when flying from Ottawa to Washington, D.C. are Avianca (94%), Republic Airways (92%) and Air Canada (81%).

What are the most popular airlines that fly from Ottawa to Washington, D.C.?

The most popular airlines flying from Ottawa to Washington, D.C. are Air Canada, United Airlines and Porter Airlines. Something to consider prior to booking your flight.

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

For a flight from Ottawa to Washington, D.C., 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 9 outbound flights to Washington, D.C. per day. 3 airlines have flights to Washington, D.C. from Ottawa on a regular basis.

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.

C$ 248+ Cheap Flights from Ottawa to Washington, D.C.

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

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

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 8 October 2026.

Mon 2/1112:15 p.m. -

1 stop5h 29m

Mon 9/1111:20 a.m. -

1 stop5h 17m

Deal found 5/10C$ 439

Sun 22/116:00 a.m. -

1 stop25h 20m

Mon 23/111:19 p.m. -

Nonstop1h 48m

Deal found 4/10C$ 454

Sun 22/1112:15 p.m. -

1 stop5h 28m

Mon 23/1111:20 a.m. -

1 stop4h 49m

Deal found 4/10C$ 456

Mon 9/115:40 p.m. -

1 stop4h 19m

Mon 16/116:00 a.m. -

1 stop3h 47m

Deal found 7/10C$ 457

Wed 2/122:00 p.m. -

1 stop6h 10m

Thu 3/125:20 p.m. -

1 stop4h 32m

Deal found 8/10C$ 458

Sun 22/1112:15 p.m. -

1 stop5h 29m

Sun 29/1111:20 a.m. -

1 stop5h 17m

Deal found 8/10C$ 460

Mon 9/119:10 a.m. -

1 stop6h 35m

Thu 12/115:20 p.m. -

1 stop4h 32m

Deal found 7/10C$ 464

Wed 2/125:45 a.m. -

1 stop4h 39m

Thu 3/126:59 a.m. -

1 stop6h 11m

Deal found 8/10C$ 464

Mon 2/1112:15 p.m. -

1 stop5h 29m

Sun 8/1111:20 a.m. -

1 stop5h 17m

Deal found 6/10C$ 468

Mon 9/1112:15 p.m. -

1 stop5h 29m

Mon 16/1111:20 a.m. -

1 stop5h 17m

Deal found 7/10C$ 470

Tue 17/1110:50 a.m. -

1 stop4h 34m

Tue 24/116:00 a.m. -

1 stop5h 37m

Deal found 3/10C$ 471

Sat 28/1112:05 p.m. -

1 stop4h 42m

Mon 30/115:20 p.m. -

1 stop4h 32m

Deal found 7/10C$ 473

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 8 October 2026.

Sun 22/1112:15 p.m. -

1 stop5h 28m

Mon 23/1111:20 a.m. -

1 stop4h 49m

Deal found 4/10C$ 456

Wed 2/125:45 a.m. -

1 stop4h 39m

Thu 3/1212:55 p.m. -

Nonstop1h 34m

Deal found 8/10C$ 490

Sat 28/112:00 p.m. -

Nonstop1h 53m

Mon 30/115:37 p.m. -

Nonstop1h 50m

Deal found 7/10C$ 511

Fri 30/109:45 a.m. -

Nonstop2h 03m

Mon 2/115:20 p.m. -

1 stop4h 32m

Deal found 8/10C$ 537

Sun 22/1110:30 a.m. -

Nonstop1h 49m

Mon 23/116:00 a.m. -

1 stop5h 37m

Deal found 4/10C$ 490

Sat 21/119:45 a.m. -

Nonstop2h 03m

Tue 24/111:19 p.m. -

Nonstop1h 48m

Deal found 3/10C$ 513

Wed 2/122:00 p.m. -

Nonstop1h 53m

Thu 3/121:19 p.m. -

Nonstop1h 48m

Deal found 8/10C$ 513

Tue 17/1110:30 a.m. -

Nonstop1h 49m

Tue 24/1112:55 p.m. -

Nonstop1h 34m

Deal found 3/10C$ 550

Sun 22/119:45 a.m. -

Nonstop2h 03m

Mon 23/111:19 p.m. -

Nonstop1h 48m

Deal found 4/10C$ 513

Wed 27/110:30 a.m. -

Nonstop1h 49m

Mon 1/212:55 p.m. -

Nonstop1h 34m

Deal found 7/10C$ 590

Tue 17/119:45 a.m. -

Nonstop2h 03m

Tue 24/118:23 a.m. -

1 stop5h 46m

Deal found 3/10C$ 538

Wed 18/1110:35 a.m. -

2 stops30h 09m

Wed 25/1110:57 a.m. -

1 stop30h 23m

Deal found 4/10C$ 739

Fri 30/109:45 a.m. -

Nonstop2h 03m

Sun 1/1110:47 p.m. -

1 stop15h 22m

Deal found 7/10C$ 538

Tue 10/117:05 a.m. -

2 stops17h 17m

Thu 12/116:08 p.m. -

2 stops29h 26m

Deal found 7/10C$ 745

Mon 28/125:40 p.m. -

1 stop4h 19m

Fri 1/16:00 a.m. -

1 stop3h 47m

Deal found 3/10C$ 656

Tue 3/114:46 p.m. -

1 stop5h 57m

Sun 8/118:30 a.m. -

1 stop5h 39m

Deal found 6/10C$ 545

Wed 28/103:10 p.m. -

2 stops17h 52m

Sat 31/106:24 a.m. -

3 stops15h 51m

Deal found 3/10C$ 833

Tue 22/126:15 a.m. -

1 stop7h 50m

Wed 13/111:05 a.m. -

1 stop10h 51m

Deal found 6/10C$ 582

Thu 29/108:00 a.m. -

1 stop9h 33m

Sat 31/109:12 p.m. -

2 stops27h 20m

Deal found 3/10C$ 901

Fri 12/22:48 p.m. -

1 stop3h 35m

Tue 16/29:00 a.m. -

1 stop4h 26m

Deal found 5/10C$ 619

Tue 10/118:00 a.m. -

1 stop10h 12m

Sat 14/113:17 p.m. -

3 stops20h 15m

Deal found 7/10C$ 913

Tue 20/106:25 a.m. -

1 stop5h 43m

Sat 24/1010:40 a.m. -

1 stop5h 58m

Deal found 3/10C$ 624

Sat 21/119:05 a.m. -

1 stop8h 04m

Tue 24/119:59 p.m. -

1 stop18h 45m

Deal found 3/10C$ 916

Fri 23/106:01 p.m. -

1 stop13h 48m

Sun 1/116:59 a.m. -

1 stop6h 11m

Deal found 5/10C$ 750

Sat 19/126:15 a.m. -

1 stop9h 15m

Sat 26/126:00 a.m. -

1 stop15h 23m

Deal found 6/10C$ 954

Mon 7/126:15 a.m. -

1 stop15h 23m

Fri 11/126:10 a.m. -

1 stop7h 59m

Deal found 5/10C$ 985

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

Round-trip from	C$ 439
One-way from	C$ 248
Popular in	May
Cheapest in	December
Average price	C$ 503
Good round-trip deal	C$ 439 or less
Good one-way deal	C$ 365 or less

Porter Airlines
2/11-9/11
2 total stops
10h 46m total
Ottawa to Washington, D.C.

Search Deals

Porter Airlines
27/11-31/12
1 total stop
5h 28m total
Ottawa to Washington, D.C.

Search Deals

Highest demand for flights based on searches. 10% potential increase in price (C$ 94 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (C$ 30 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 - DCA Washington, D.C. Reagan-National

YOWDCA

Ottawa

Wed 2/12

5:40 p.m.-9:59 p.m.

1 stop4h 19m

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 - IAD Washington, D.C. Dulles Intl

YOWIAD

Ottawa

Wed 2/12

2:00 p.m.-8:10 p.m.

1 stop6h 10m

Washington, D.C. Dulles Intl

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

Thu 19/11

10:50 a.m.-3:24 p.m.

1 stop4h 34m

Washington, D.C. Reagan-National

Wed 31/12

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

Nonstop0h 00m

C$ 273

OttawaWashington, D.C.

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

YOWIAD

Ottawa

Fri 30/10

2:00 p.m.-3:53 p.m.

Nonstop1h 53m

Washington, D.C. Dulles Intl

Wed 31/12

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

Nonstop0h 00m

C$ 293

OttawaWashington, D.C.

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

YOWIAD

Ottawa

Wed 2/12

2:00 p.m.-3:53 p.m.

Nonstop1h 53m

Washington, D.C. Dulles Intl

Wed 31/12

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

Nonstop0h 00m

C$ 293

OttawaWashington, D.C.

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

YOWIAD

Ottawa

Fri 27/11

9:45 a.m.-11:48 a.m.

Nonstop2h 03m

Washington, D.C. Dulles Intl

Wed 31/12

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

Nonstop0h 00m

C$ 293

OttawaWashington, D.C.

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

YOWDCA

Ottawa

Thu 31/12

5:45 a.m.-10:29 a.m.

1 stop4h 44m

Washington, D.C. Reagan-National

Wed 31/12

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

Nonstop0h 00m

C$ 306

OttawaWashington, D.C.

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

YOWIAD

Ottawa

Thu 31/12

9:10 a.m.-3:45 p.m.

1 stop6h 35m

Washington, D.C. Dulles Intl

Wed 31/12

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

Nonstop0h 00m

C$ 313

OttawaWashington, D.C.

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

YOWDCA

Ottawa

Fri 30/10

6:00 a.m.-4:28 p.m.

1 stop10h 28m

Washington, D.C. Reagan-National

Wed 31/12

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

Nonstop0h 00m

C$ 316

Quickest round-trip

OttawaWashington, D.C.

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

YOWDCA

Ottawa

Fri 30/10

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$ 320

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/10

Showing 1-10 of 51 resultsSorted by cheapest first

...

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

YOW-BWI

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

YOW-BWI

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 C$ 473). Flying from Ottawa to Washington, D.C. in August is currently the most expensive (average of C$ 639). 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?

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. as you normally would.

Weekly flight availability from Ottawa to Washington, D.C.

The most flights from YOW to WAS are scheduled on a Monday (10 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (9 on average).

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 C$ 496 and C$ 609 in November.
The cheapest round-trip price found within the last 5 days was C$ 439 on Porter Airlines (2 Nov-9 Nov).

What’s the top layover airport for flights from Ottawa to Washington, D.C.?

Toronto (YTZ) – chosen by Cheapflights users on 93% of one-stop itineraries from Ottawa to Washington, D.C. on Cheapflights.

What’s the cheapest layover airport for flights from Ottawa to Washington, D.C.?

Toronto (YTZ) is the most affordable 1-stop option, with an average round-trip price of C$ 416.

What’s the fastest layover option from Ottawa to Washington, D.C.?

Flights via Toronto (YYZ) have the shortest average one-way travel time for 1-stop routes: 3h 42m.

Which airport typically offers the quickest layover for flights from Ottawa to Washington, D.C.?

Flights via Toronto (YYZ) offer the fastest connection on this route, with an average layover time of 1h 16m.

Reviews of airlines servicing Washington, D.C.

Read reviews from past customers who have flown Porter Airlines,United Airlines, andAir Canada from Ottawa to Washington, D.C.. 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.

Porter Airlines

8.0

Very good

468 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

D,Sep 2026

YHM - YVR

The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.

Porter Airlines

8.0

Very good

468 reviews

Porter Airlines

8.0

Very good

468 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

D,Sep 2026

YHM - YVR

United Airlines

7.4

Good

10,311 reviews

Porter Airlines

8.0

Very good

468 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

D,Sep 2026

YHM - YVR

Air Canada

7.1

Good

11,741 reviews

Porter Airlines

8.0

Very good

468 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

D,Sep 2026

YHM - YVR

Related info for your journey

What airport do you fly from for flights from Ottawa to Washington, D.C.?
For a flight from Ottawa to Washington, D.C., 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 9 outbound flights to Washington, D.C. per day. 3 airlines have flights to Washington, D.C. from Ottawa on a regular basis.
How long is the flight from Ottawa to Washington, D.C.?
Airlines like United Airlines and Air Canada fly from Ottawa to Washington, D.C. in about 4h 39m. The time it takes to get you to your destination can typically vary by up to 20h 41m. The distance between Ottawa and Washington, D.C. is about 727 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines flying from Ottawa to Washington, D.C. round-trip?
Flying on United Airlines is currently your cheapest option to Washington, D.C., with prices starting at C$ 274. Additional round-trip tickets that might be worth considering are offered by Porter Airlines and Air Canada, with the lowest prices starting at C$ 325 and C$ 370, respectively. These flights start at 53% lower than the current average price 3 months from now.
What are the most popular routes from Ottawa to Washington, D.C.?
The most popular flight routes from Ottawa to Washington, D.C. are Ottawa - Washington, D.C. Dulles Intl, Ottawa - Washington, D.C. Reagan-National and Ottawa - Baltimore/Washington.
What are the most reliable airlines from Ottawa to Washington, D.C.?
The top 3 most reliable airlines when flying from Ottawa to Washington, D.C. are Avianca (94%), Republic Airways (92%) and Air Canada (81%).
What are the cheapest flights from Ottawa to Washington, D.C.?
The cheapest flight price from Ottawa to Washington, D.C. is C$ 269. On average you can expect to pay C$ 891. The most popular route, (Ottawa - Washington, D.C. Dulles Intl), can usually be booked for C$ 468.
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 C$ 473). Flying from Ottawa to Washington, D.C. in August is currently the most expensive (average of C$ 639). 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

Silver Spring

Alexandria

Hanover

College Park

Oxon Hill

Gaithersburg

Reston

Herndon

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Fredericksburg

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Washington, D.C. flight routes

Alternative routes for Ottawa to Washington, D.C.

Pearson Intl to Reagan-National flights

Pearson Intl to Dulles Intl flights

Toronto Island to Dulles Intl flights

Pierre Elliott Trudeau Intl to Dulles Intl flights

Pierre Elliott Trudeau Intl to Reagan-National flights

Toronto Island to Reagan-National flights

Ottawa to Dulles Intl flights

Ottawa to Reagan-National flights

Hamilton to Reagan-National flights

Thunder Bay to Dulles Intl flights

London to Dulles Intl flights

London to Reagan-National flights

Top 3 airlines flying from Ottawa to Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	CheapestC$ 274	AverageC$ 577	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Porter Airlines	CheapestC$ 325	AverageC$ 430	FlexibilityNo cancel fee	On-time52%	Search Porter Airlines flights
Air Canada	CheapestC$ 370	AverageC$ 617	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights

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How does Cheapflights help users find flights from Ottawa to Washington, D.C.?

Deals for Ottawa to Washington, D.C. flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Ottawa to Washington, D.C.?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Ottawa to Washington, D.C. for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Ottawa to Washington, D.C. with no change fees?

Yes, we can. To see specific flights from Ottawa to Washington, D.C. with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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Cheap flights from Ottawa to Washington, D.C. from C$ 248

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 27/11. Fares are subject to change and may not be available on all flights or dates of travel.

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 8 October 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 8 October 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 8 October 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 8 October 2026.

Direct flights from Ottawa to Washington, D.C.Explore direct flight options from Ottawa to Washington, D.C. based on user searches, and compare prices and availability for your desired travel dates. Data last updated 8 October 2026.

Explore direct flight options from Ottawa to Washington, D.C. based on user searches, and compare prices and availability for your desired travel dates. Data last updated 8 October 2026.

Last-minute flights from Ottawa to Washington, D.C.Discover last-minute flight deals from Ottawa to Washington, D.C.. Data last updated 8 October 2026 and is based on user searches.

Discover last-minute flight deals from Ottawa to Washington, D.C.. Data last updated 8 October 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 8 October 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 8 October 2026.

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

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

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

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.

Cheapflights Insights

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 8 October 2026.

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. as you normally would.

Weekly flight availability from Ottawa to Washington, D.C.

The most flights from YOW to WAS are scheduled on a Monday (10 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (9 on average).

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 C$ 496 and C$ 609 in November.The cheapest round-trip price found within the last 5 days was C$ 439 on Porter Airlines (2 Nov-9 Nov).

What’s the top layover airport for flights from Ottawa to Washington, D.C.?

Share of one-stop round-trip flights from Ottawa to Washington, D.C. chosen by Cheapflights users in the past 12 months, using the same layover each way.

Toronto (YTZ) – chosen by Cheapflights users on 93% of one-stop itineraries from Ottawa to Washington, D.C. on Cheapflights.

What’s the cheapest layover airport for flights from Ottawa to Washington, D.C.?

Average round-trip fare for 1-stop flights from Ottawa to Washington, D.C., chosen by Cheapflights users in the past 12 months, with the same layover each way.

Toronto (YTZ) is the most affordable 1-stop option, with an average round-trip price of C$ 416.

What’s the fastest layover option from Ottawa to Washington, D.C.?

Shortest average travel time for 1-stop one-way flights from Ottawa to Washington, D.C., based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Toronto (YYZ) have the shortest average one-way travel time for 1-stop routes: 3h 42m.

Which airport typically offers the quickest layover for flights from Ottawa to Washington, D.C.?

Average layover duration for 1-stop one-way flights from Ottawa to Washington, D.C., chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Toronto (YYZ) offer the fastest connection on this route, with an average layover time of 1h 16m.

Reviews of airlines servicing Washington, D.C.

Read reviews from past customers who have flown Porter Airlines,United Airlines, andAir Canada from Ottawa to Washington, D.C.. 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.

Related info for your journey

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

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.?

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

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

Travelling 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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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 8 October 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 8 October 2026.

Direct flights from Ottawa to Washington, D.C.
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Last-minute flights from Ottawa to Washington, D.C.
Discover last-minute flight deals from Ottawa to Washington, D.C.. Data last updated 8 October 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 8 October 2026.

Ottawa to Washington, D.C. flights typically cost between C$ 496 and C$ 609 in November.
The cheapest round-trip price found within the last 5 days was C$ 439 on Porter Airlines (2 Nov-9 Nov).