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$151+ Cheap flights from Ottawa (YOW) to Washington

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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — SEA
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Ottawa to Washington

Keep the following information in mind while searching for Ottawa to Washington flight deals. Data was last updated September 11, 2025.

Round-trip from

$255
(Trip.com)

One-way from

$151
(Trip.com)

Popular in

December

Cheapest in

October

Average price

$406
From Ottawa to Washington
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One-way flight from Ottawa to Washington
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Highest demand for flights based on searches. 9% potential increase in price ($43 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Ottawa to Washington

Cheapest flights from Ottawa to Washington
Explore the most affordable flight options available from Ottawa to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Trip.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/207:50 amYOW - SEA
1 stop8h 09mWestJet
Wed 10/221:50 pmSEA - YOW
1 stop7h 50mWestJet
Deal found 9/11$255
This Trip.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/215:40 amYOW - SEA
2 stops11h 40mWestJet
Sat 12/63:20 pmSEA - YOW
1 stop22h 33mWestJet
Deal found 9/9$261
This Trip.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2012:20 pmYOW - SEA
2 stops11h 09mWestJet
Thu 10/238:40 amSEA - YOW
2 stops12h 42mWestJet
Deal found 9/11$263
This Air Canada deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/116:00 pmYOW - SEA
1 stop7h 31mAir Canada
Wed 10/225:30 amSEA - YOW
1 stop7h 42mAir Canada
Deal found 9/10$286
This Trip.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/256:00 amYOW - SEA
1 stop9h 59mWestJet
Sat 11/13:20 pmSEA - YOW
1 stop23h 33mWestJet
Deal found 9/10$287
This oojo deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/117:15 pmYOW - SEA
2 stops20h 20mWestJet
Wed 10/228:40 amSEA - YOW
2 stops12h 42mWestJet
Deal found 9/10$296
This Air Canada deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/236:00 pmYOW - PDX
1 stop8h 01mAir Canada
Sun 10/267:00 pmPDX - YOW
1 stop8h 23mAir Canada
Deal found 9/11$420
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/239:00 amYOW - PDX
1 stop8h 48mMultiple Airlines
Sun 10/269:08 amPDX - YOW
2 stops26h 36mMultiple Airlines
Deal found 9/11$463
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/235:15 amYOW - PDX
2 stops20h 10mUnited Airlines
Sun 10/2611:59 pmPDX - YOW
2 stops18h 19mUnited Airlines
Deal found 9/11$557

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ottawa to Washington that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Ottawa to Washington that are best for you.

Fly from

Ottawa

Fly to

Washington

Route

Depart

Return

Price

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Mon 10/20

7:50 am-12:59 pm

1 stop8h 09m

Seattle/Tacoma Intl

Wed 10/22

1:50 pm-12:40 am

1 stop7h 50m

$255

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Mon 10/20

12:20 pm-8:29 pm

2 stops11h 09m

Seattle/Tacoma Intl

Thu 10/23

1:50 pm-12:40 am

1 stop7h 50m

$267

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Fri 11/21

5:40 am-2:20 pm

2 stops11h 40m

Seattle/Tacoma Intl

Sat 12/6

3:20 pm-12:42 am

2 stops30h 22m

$271

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Sat 10/11

6:00 pm-10:31 pm

1 stop7h 31m

Seattle/Tacoma Intl

Wed 10/22

5:30 am-4:12 pm

1 stop7h 42m

$286

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Sat 10/25

5:55 am-12:59 pm

2 stops10h 04m

Seattle/Tacoma Intl

Sat 11/1

11:55 am-12:40 am

2 stops9h 45m

$288

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Sat 10/11

7:15 pm-12:35 pm

2 stops20h 20m

Seattle/Tacoma Intl

Wed 10/22

8:40 am-12:22 am

2 stops12h 42m

$296

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Sat 9/27

6:00 pm-10:16 pm

1 stop7h 16m

Seattle/Tacoma Intl

Mon 9/29

7:15 am-5:19 pm

1 stop7h 04m

$297

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Wed 9/24

6:00 pm-10:16 pm

1 stop7h 16m

Seattle/Tacoma Intl

Wed 10/1

5:30 am-7:29 pm

2 stops10h 59m

$297

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Tue 9/30

2:48 pm-10:17 pm

1 stop10h 29m

Seattle/Tacoma Intl

Sat 10/4

1:12 pm-9:58 am

1 stop17h 46m

$302

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Tue 3/3

5:45 am-2:45 pm

2 stops12h 00m

Portland

Wed 3/4

7:00 pm-6:43 am

1 stop8h 43m

$361

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 25 results
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Best time to book a flight from Ottawa to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington 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

What is the cheapest month to book a flight from Ottawa to State of Washington?

Currently, January is the cheapest month in which you can book a flight from Ottawa to State of Washington (average of $238). Flying from Ottawa to State of Washington in June is currently the most expensive (average of $388). 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 WA?

Find hourly flight availability from Ottawa to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ottawa to State of Washington as you normally would.

How much does it cost to fly round-trip from Ottawa to State of Washington?

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington. Reviews last updated September 11, 2025.
Read through reviews of airlines operating flights from Ottawa to Washington, such as United Airlines, WestJet, and Air Canada. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,937 reviews

Crew

8.1

Overall

7.4

Entertainment

7.1

Comfort

7.3

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Crew

8.1

Overall

7.4

Entertainment

7.1

Comfort

7.3

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
WestJet
7.2
Good
3,091 reviews
United Airlines
7.4
Good
8,937 reviews

Crew

8.1

Overall

7.4

Entertainment

7.1

Comfort

7.3

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
Air Canada
7.1
Good
10,000 reviews
United Airlines
7.4
Good
8,937 reviews

Crew

8.1

Overall

7.4

Entertainment

7.1

Comfort

7.3

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Related info for your journey

Find useful and relevant information for your journey from Ottawa to Washington. 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?

    If you book a flight to Washington 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.

  • How long is the flight from Ottawa to State of Washington?

    There are many flights that can get you from Ottawa to State of Washington in 7h 31m. Fly via WestJet or Air Canada to get the fastest option. Ottawa and State of Washington are separated by a distance of 2193 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Ottawa to State of Washington one-way?

    $151 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Air Canada and United Airlines, with prices starting from $173 and $185, respectively.

  • Can I find deals for flights from Ottawa to Washington that include hotel bookings?

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

  • How can I find direct flights from Ottawa to Washington?

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

  • Can I find deals for business class flights from Ottawa to Washington?

    Yes. Cheapflights offers flight deals from Ottawa to Washington 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 State of Washington?

    Currently, January is the cheapest month in which you can book a flight from Ottawa to State of Washington (average of $238). Flying from Ottawa to State of Washington in June is currently the most expensive (average of $388). 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

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Alternative routes for Ottawa to Washington

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Top 3 airlines flying from Ottawa to Washington

Discover the top 3 airlines that operate flights from Ottawa to Washington. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$277Average$462FlexibilityNo cancel feeOn-time60%
United AirlinesCheapest$323Average$478FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$345Average$474FlexibilityNo cancel feeOn-time67%

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