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

Air Canada and Porter Airlines can get you from Ottawa to Washington, D.C. in just under 1h 49m. Your travel time can differ by up to 1h 30m. 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?

Porter Airlines, at $197, was found to be the cheapest airline from Ottawa to Washington, D.C..Alternate airlines to your destination round-trip include United Airlines and 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 $631, our data shows the cheapest flight currently is $166. When looking at the most popular route, (Ottawa - Washington, D.C. Dulles Intl), you can expect to pay $255 for that flight.

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

Consider Avianca (85%), Republic Airways (78%) or United Airlines (73%) when booking your flight. These represent the most reliable airlines when flying from Ottawa to Washington, D.C..

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.

Most accurate provider : When it comes to deals on Ottawa-Washington, D.C. flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ottawa-Washington, D.C. flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 7 flights from Ottawa to Washington, D.C. per day from 3 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.

$147+ Flights from Ottawa to Washington, D.C.

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Cheapflights Tip: The best prices from Ottawa to Washington, D.C. are usually found in March or April, booked 26 days in advance, depart on a Friday or Thursday and return on a Saturday

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 December 14, 2025.

Mon 12/2912:10 pmYOW - IAD

1 stop5h 04mPorter Airlines

Fri 1/211:35 amIAD - YOW

1 stop5h 54mPorter Airlines

Deal found 12/11

$396

Mon 12/294:00 pmYOW - DCA

1 stop5h 56mAir Canada

Fri 1/26:00 amDCA - YOW

1 stop5h 18mAir Canada

Deal found 12/11

$446

Sun 12/288:40 amYOW - IAD

1 stop8h 34mPorter Airlines

Fri 1/211:35 amIAD - YOW

1 stop3h 29mPorter Airlines

Deal found 12/11

$461

Mon 12/226:50 amYOW - IAD

1 stop3h 34mPorter Airlines

Sat 12/276:30 pmIAD - YOW

1 stop3h 59mPorter Airlines

Deal found 12/11

$470

Sat 12/278:55 pmYOW - IAD

1 stop13h 29mPorter Airlines

Wed 12/3111:40 amIAD - YOW

1 stop27h 24mPorter Airlines

Deal found 12/12

$474

Fri 12/261:20 pmYOW - IAD

1 stop3h 54mPorter Airlines

Wed 12/3111:40 amIAD - YOW

1 stop5h 49mPorter Airlines

Deal found 12/12

$491

Mon 12/229:35 amYOW - BWI

2 stops27h 54mMultiple Airlines

Thu 4/165:58 pmBWI - YOW

1 stop30h 27mMultiple Airlines

Deal found 12/14

$495

Sun 12/288:55 pmYOW - IAD

1 stop13h 29mPorter Airlines

Wed 12/3111:40 amIAD - YOW

1 stop27h 24mPorter Airlines

Deal found 12/12

$498

Fri 12/266:45 amYOW - DCA

2 stops13h 35mAmerican Airlines

Wed 12/3110:10 amDCA - YOW

1 stop6h 41mAmerican Airlines

Deal found 12/12

$504

Sun 12/288:55 pmYOW - IAD

1 stop13h 29mMultiple Airlines

Wed 12/317:01 pmIAD - YOW

2 stops22h 24mMultiple Airlines

Deal found 12/12

$508

Mon 12/296:15 amYOW - IAD

1 stop11h 15mUnited Airlines

Fri 1/210:08 pmIAD - YOW

Nonstop1h 46mUnited Airlines

Deal found 12/11

$519

Mon 12/229:35 amYOW - IAD

2 stops31h 02mMultiple Airlines

Thu 4/1611:40 amIAD - YOW

1 stop12h 59mMultiple Airlines

Deal found 12/14

$522

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 December 14, 2025.

Thu 1/157:00 amYOW - BWI

1 stop16h 34mMultiple Airlines

Sun 1/184:47 pmBWI - YOW

1 stop24h 38mMultiple Airlines

Deal found 12/12

$240

Thu 1/1510:30 amYOW - DCA

Nonstop1h 49mAir Canada

Sun 1/1812:55 pmDCA - YOW

Nonstop1h 35mAir Canada

Deal found 12/12

$287

Mon 1/267:00 amYOW - IAD

1 stop3h 19mPorter Airlines

Thu 2/511:40 amIAD - YOW

1 stop3h 24mPorter Airlines

Deal found 12/13

$299

Mon 1/267:27 pmYOW - IAD

Nonstop1h 58mUnited Airlines

Thu 2/58:29 amIAD - YOW

1 stop5h 03mUnited Airlines

Deal found 12/12

$398

Tue 1/277:00 amYOW - BWI

1 stop16h 36mMultiple Airlines

Tue 2/36:20 amBWI - YOW

1 stop11h 05mMultiple Airlines

Deal found 12/13

$263

Wed 1/289:30 amYOW - BWI

1 stop7h 40mMultiple Airlines

Wed 2/46:20 amBWI - YOW

1 stop11h 05mMultiple Airlines

Deal found 12/14

$269

Mon 1/267:00 amYOW - IAD

1 stop3h 19mPorter Airlines

Thu 1/2911:35 amIAD - YOW

1 stop3h 29mPorter Airlines

Deal found 12/12

$299

Mon 2/95:45 amYOW - DCA

1 stop4h 38mAir Canada

Fri 2/136:00 amDCA - YOW

1 stop3h 41mAir Canada

Deal found 12/11

$304

Thu 1/297:00 amYOW - BWI

1 stop12h 03mMultiple Airlines

Wed 2/46:20 amBWI - YOW

1 stop11h 05mMultiple Airlines

Deal found 12/12

$272

Thu 1/2910:30 amYOW - DCA

Nonstop1h 49mAir Canada

Mon 2/212:55 pmDCA - YOW

Nonstop1h 35mAir Canada

Deal found 12/11

$311

Mon 1/264:15 pmYOW - DCA

1 stop6h 20mAir Canada

Thu 2/56:00 amDCA - YOW

1 stop3h 41mAir Canada

Deal found 12/11

$321

Mon 1/127:00 amYOW - BWI

2 stops17h 29mMultiple Airlines

Wed 1/141:00 pmBWI - YOW

1 stop11h 25mMultiple Airlines

Deal found 12/13

$292

Fri 2/139:45 amYOW - IAD

Nonstop1h 59mUnited Airlines

Fri 2/208:36 amIAD - YOW

1 stop4h 58mUnited Airlines

Deal found 12/12

$398

Thu 4/910:25 amYOW - DCA

Nonstop1h 36mAir Canada

Tue 4/1412:55 pmDCA - YOW

Nonstop1h 32mAir Canada

Deal found 12/12

$323

Thu 1/87:00 amYOW - BWI

1 stop16h 44mMultiple Airlines

Sun 1/114:44 pmBWI - YOW

1 stop7h 14mMultiple Airlines

Deal found 12/14

$299

Tue 2/39:45 amYOW - IAD

Nonstop2h 04mUnited Airlines

Mon 2/95:38 pmIAD - YOW

1 stop4h 18mUnited Airlines

Deal found 12/14

$398

Mon 1/265:45 amYOW - DCA

1 stop4h 38mAir Canada

Mon 2/212:55 pmDCA - YOW

Nonstop1h 35mAir Canada

Deal found 12/12

$332

Mon 1/127:00 amYOW - BWI

2 stops17h 29mMultiple Airlines

Fri 1/161:00 pmBWI - YOW

1 stop11h 25mMultiple Airlines

Deal found 12/12

$307

Mon 1/265:45 amYOW - DCA

1 stop4h 38mAir Canada

Fri 2/612:55 pmDCA - YOW

Nonstop1h 35mAir Canada

Deal found 12/12

$332

Fri 2/136:50 amYOW - IAD

1 stop3h 32mMultiple Airlines

Fri 2/208:15 amIAD - YOW

1 stop15h 43mMultiple Airlines

Deal found 12/12

$339

Fri 2/1310:30 amYOW - DCA

Nonstop1h 49mAir Canada

Fri 2/2012:55 pmDCA - YOW

Nonstop1h 35mAir Canada

Deal found 12/12

$344

Tue 2/310:30 amYOW - DCA

Nonstop1h 49mAir Canada

Mon 2/912:55 pmDCA - YOW

Nonstop1h 35mAir Canada

Deal found 12/14

$345

Thu 1/152:15 pmYOW - IAD

Nonstop1h 58mMultiple Airlines

Sun 1/1811:35 amIAD - YOW

1 stop3h 29mMultiple Airlines

Deal found 12/12

$362

Sun 1/1110:30 amYOW - DCA

Nonstop1h 49mAir Canada

Sun 1/1812:55 pmDCA - YOW

Nonstop1h 35mAir Canada

Deal found 12/13

$345

Wed 1/79:45 amYOW - IAD

Nonstop2h 04mAir Canada

Thu 1/810:10 pmIAD - YOW

Nonstop1h 44mAir Canada

Deal found 12/11

$364

Mon 1/267:27 pmYOW - IAD

Nonstop1h 58mAir Canada

Fri 2/61:15 pmIAD - YOW

1 stop4h 27mAir Canada

Deal found 12/13

$390

Last-minute flights from Ottawa to Washington, D.C.
Discover last-minute flight deals from Ottawa to Washington, D.C.. Data last updated December 14, 2025 and is based on user searches.

Thu 1/87:00 amYOW - BWI

1 stop16h 44mMultiple Airlines

Sun 1/114:44 pmBWI - YOW

1 stop7h 14mMultiple Airlines

Deal found 12/14

$299

Thu 1/87:00 amYOW - IAD

1 stop3h 19mPorter Airlines

Sun 1/1111:35 amIAD - YOW

1 stop3h 29mPorter Airlines

Deal found 12/14

$302

Mon 1/127:00 amYOW - BWI

2 stops17h 29mMultiple Airlines

Wed 1/141:00 pmBWI - YOW

1 stop11h 25mMultiple Airlines

Deal found 12/13

$292

Thu 1/157:00 amYOW - BWI

1 stop16h 34mMultiple Airlines

Sun 1/184:47 pmBWI - YOW

1 stop24h 38mMultiple Airlines

Deal found 12/12

$240

Thu 1/1510:30 amYOW - DCA

Nonstop1h 49mAir Canada

Sun 1/1812:55 pmDCA - YOW

Nonstop1h 35mAir Canada

Deal found 12/12

$287

Thu 1/159:40 amYOW - IAD

1 stop8h 44mMultiple Airlines

Sun 1/187:27 pmIAD - YOW

2 stops21h 58mMultiple Airlines

Deal found 12/12

$292

Sat 1/244:20 pmYOW - BWI

1 stop7h 27mMultiple Airlines

Sun 1/255:47 pmBWI - YOW

1 stop23h 38mMultiple Airlines

Deal found 12/13

$267

Mon 1/267:00 amYOW - IAD

1 stop3h 19mPorter Airlines

Fri 2/611:40 amIAD - YOW

1 stop3h 24mPorter Airlines

Deal found 12/13

$273

Mon 1/267:00 amYOW - IAD

1 stop3h 19mPorter Airlines

Thu 1/2911:35 amIAD - YOW

1 stop3h 29mPorter Airlines

Deal found 12/13

$299

Tue 1/277:00 amYOW - BWI

1 stop16h 36mMultiple Airlines

Tue 2/36:20 amBWI - YOW

1 stop11h 05mMultiple Airlines

Deal found 12/13

$263

Wed 1/289:30 amYOW - BWI

1 stop7h 40mMultiple Airlines

Wed 2/46:20 amBWI - YOW

1 stop11h 05mMultiple Airlines

Deal found 12/14

$269

Thu 1/297:00 amYOW - BWI

1 stop12h 03mMultiple Airlines

Wed 2/46:20 amBWI - YOW

1 stop11h 05mMultiple Airlines

Deal found 12/12

$272

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 December 14, 2025.

Mon 2/166:50 amYOW - IAD

1 stop3h 32mPorter Airlines

Deal found 12/14

$147

Sun 1/117:00 amYOW - BWI

1 stop25h 31mMultiple Airlines

Deal found 12/12

$155

Mon 1/267:00 amYOW - IAD

1 stop3h 19mPorter Airlines

Deal found 12/14

$161

Sun 1/117:00 amYOW - IAD

2 stops32h 27mMultiple Airlines

Deal found 12/12

$175

Mon 1/267:00 amYOW - BWI

1 stop16h 36mMultiple Airlines

Deal found 12/12

$175

Wed 1/289:30 amYOW - BWI

1 stop14h 17mMultiple Airlines

Deal found 12/14

$176

Wed 12/316:50 amYOW - IAD

1 stop3h 34mPorter Airlines

Deal found 12/14

$177

Sun 3/112:10 pmYOW - IAD

1 stop5h 04mPorter Airlines

Deal found 12/11

$180

Sun 3/110:30 amYOW - DCA

Nonstop1h 49mAir Canada

Deal found 12/11

$180

Mon 1/265:45 amYOW - DCA

1 stop4h 38mAir Canada

Deal found 12/12

$195

Mon 2/164:15 pmYOW - BWI

2 stops24h 58mMultiple Airlines

Deal found 12/14

$196

Wed 1/282:50 pmYOW - IAD

1 stop6h 04mAir Canada

Deal found 12/14

$200

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

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$240 (Kiwi.com)
One-way from	$147 (Kiwi.com)
Popular in	November
Cheapest in	March
Average price	$343
Good round-trip deal	$347 or less
Good one-way deal	$196 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. 7% potential increase in price ($28 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

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

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Thu 1/15

7:00 am-11:34 pm

1 stop16h 34m

Baltimore/Washington

Sun 1/18

4:47 pm-5:25 pm

1 stop24h 38m

$240

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Tue 1/27

7:00 am-11:36 pm

1 stop16h 36m

Baltimore/Washington

Tue 2/3

6:20 am-5:25 pm

1 stop11h 05m

$263

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Wed 1/28

9:30 am-5:10 pm

1 stop7h 40m

Baltimore/Washington

Wed 2/4

6:20 am-5:25 pm

1 stop11h 05m

$269

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Thu 1/29

7:00 am-7:03 pm

1 stop12h 03m

Baltimore/Washington

Wed 2/4

6:20 am-5:25 pm

1 stop11h 05m

$272

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Thu 1/15

10:30 am-12:19 pm

Nonstop1h 49m

Washington, D.C. Reagan-National

Sun 1/18

12:55 pm-2:30 pm

Nonstop1h 35m

$287

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Mon 1/12

7:00 am-12:29 am

2 stops17h 29m

Baltimore/Washington

Wed 1/14

1:00 pm-12:25 am

1 stop11h 25m

$292

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Mon 1/26

7:00 am-10:19 am

1 stop3h 19m

Washington, D.C. Dulles Intl

Thu 2/5

11:40 am-3:04 pm

1 stop3h 24m

$299

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Mon 1/26

7:00 am-10:19 am

1 stop3h 19m

Washington, D.C. Dulles Intl

Thu 1/29

11:35 am-3:04 pm

1 stop3h 29m

$299

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Thu 1/8

7:00 am-11:44 pm

1 stop16h 44m

Baltimore/Washington

Sun 1/11

4:44 pm-11:58 pm

1 stop7h 14m

$299

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Mon 2/9

5:45 am-10:23 am

1 stop4h 38m

Washington, D.C. Reagan-National

Fri 2/13

6:00 am-9:41 am

1 stop3h 41m

$304

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/12

Showing 1-10 of 42 results

...

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 December.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ottawa-Washington, D.C. flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

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.

How far ahead should I book a flight from Ottawa to Washington, D.C.?

The price you pay for your flight from Ottawa to Washington, D.C. may vary depending on when you book. For the best chance of a lower fare, look to book 26 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, April is the cheapest month in which you can book a flight from Ottawa to Washington, D.C. (average of $73). Flying from Ottawa to Washington, D.C. in July is currently the most expensive (average of $238). 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?

Unlike in the afternoon, when flights are generally more expensive, you can save up to 17% on flights from Ottawa to Washington, D.C. by exploring options for tickets in the evening.

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

The most flights from YOW to WAS are scheduled on a Monday (9 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (2 on average).

Reviews of airlines servicing Washington, D.C.

See what other customers who have flown with Porter Airlines, 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.

Porter Airlines

8.0

Very good

399 reviews

Reviews

1 / 20

8.0

Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Porter Airlines

8.0

Very good

399 reviews

Porter Airlines

8.0

Very good

399 reviews

Reviews

1 / 20

8.0

Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

United Airlines

7.4

Good

9,092 reviews

Porter Airlines

8.0

Very good

399 reviews

Reviews

1 / 20

8.0

Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Air Canada

7.1

Good

10,522 reviews

Porter Airlines

8.0

Very good

399 reviews

Reviews

1 / 20

8.0

Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

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 7 flights from Ottawa to Washington, D.C. per day from 3 different airlines.
How long is the flight from Ottawa to Washington, D.C.?
Air Canada and Porter Airlines can get you from Ottawa to Washington, D.C. in just under 1h 49m. Your travel time can differ by up to 1h 30m. 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?
Porter Airlines, at $197, was found to be the cheapest airline from Ottawa to Washington, D.C..Alternate airlines to your destination round-trip include United Airlines and 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 (85%), Republic Airways (78%) or United Airlines (73%) 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 $631, our data shows the cheapest flight currently is $166. When looking at the most popular route, (Ottawa - Washington, D.C. Dulles Intl), you can expect to pay $255 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, April is the cheapest month in which you can book a flight from Ottawa to Washington, D.C. (average of $73). Flying from Ottawa to Washington, D.C. in July is currently the most expensive (average of $238). 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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Alexandria

Woodbridge

Tysons

Arlington

Owings Mills

Springfield

Hanover

Silver Spring

Fredericksburg

Fairfax

Linthicum Heights

Manassas

Rockville

Laurel

Towson

National Harbor

Bowie

Largo

McLean

Clinton

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

Airline	Cheapest	Average	Flexibility	On-time
Porter Airlines	Cheapest$197	Average$307	FlexibilityNo cancel fee	On-time52%
United Airlines	Cheapest$281	Average$465	FlexibilityNo cancel fee	On-time69%
Air Canada	Cheapest$296	Average$397	FlexibilityNo cancel fee	On-time67%

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$147+ Cheap flights from Ottawa (YOW) to Washington, D.C. (WAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/16. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapflights Tip: The best prices from Ottawa to Washington, D.C. are usually found in March or April, booked 26 days in advance, depart on a Friday or Thursday and return on a Saturday

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 December 14, 2025.

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 December 14, 2025.

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

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

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

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 December.

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

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

How far ahead should I book a flight from Ottawa to Washington, D.C.?

Use this chart to determine the optimal time to book a round-trip flight from Ottawa to Washington, D.C.. Price data was last updated on December 12, 2025.

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 December 14, 2025.

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

Reviews of airlines servicing Washington, D.C.

See what other customers who have flown with Porter Airlines, 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

Find useful and relevant information for your journey from Ottawa to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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.?

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

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Alternative routes for Ottawa to Washington, D.C.

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Top 3 airlines flying from Ottawa 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 December 14, 2025.