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$143+ 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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — SEA
Jan 16 — Jan 231
Fri 1/16
Fri 1/23
1 adult, Economy
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Cheap 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 December 17, 2025.

This United Airlines deal was found by Cheapflights users on 12/15. 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.
Mon 12/225:09 pmYOW - SEA
2 stops22h 38mUnited Airlines
Fri 1/28:00 amSEA - YOW
1 stop12h 54mUnited Airlines
Deal found 12/15$706
This Air Canada deal was found by Cheapflights users on 12/17. 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.
Mon 12/225:50 pmYOW - SEA
1 stop7h 56mAir Canada
Fri 1/28:10 amSEA - YOW
1 stop8h 13mAir Canada
Deal found 12/17$772
This FlightHub deal was found by Cheapflights users on 12/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/225:45 pmYOW - SEA
2 stops30h 01mWestJet
Fri 1/29:25 amSEA - YOW
2 stops12h 15mWestJet
Deal found 12/16$814
This United Airlines deal was found by Cheapflights users on 12/16. 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 12/189:45 amYOW - PDX
2 stops10h 46mUnited Airlines
Sun 12/217:45 pmPDX - YOW
2 stops18h 33mUnited Airlines
Deal found 12/16$991
This American Airlines deal was found by Cheapflights users on 12/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/229:10 amYOW - SEA
3 stops15h 01mAmerican Airlines
Fri 1/211:20 amSEA - YOW
2 stops10h 23mAmerican Airlines
Deal found 12/15$1,128
This Air Canada deal was found by Cheapflights users on 12/16. 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 12/187:45 amYOW - PDX
1 stop13h 45mAir Canada
Sun 12/217:00 pmPDX - YOW
1 stop8h 43mAir Canada
Deal found 12/16$1,128
This Mytrip deal was found by Cheapflights users on 12/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/186:50 amYOW - PDX
3 stops13h 36mMultiple Airlines
Sun 12/2111:18 pmPDX - YOW
2 stops25h 42mMultiple Airlines
Deal found 12/16$1,673

Find flight deals from Ottawa to Washington

Keep the following information in mind while searching for Ottawa to Washington flight deals. Data was last updated December 17, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$240
(oojo)

One-way from

$143
(Mytrip)

Popular in

December

Cheapest in

September

Average price

$492
Provider with most accurate pricing for Ottawa-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Ottawa-Seattle/Tacoma Intl flights.
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From Ottawa to Washington
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One-way flight from Ottawa to Washington
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($13 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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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 December 17, 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

Wed 1/28

5:40 am-2:20 pm

2 stops11h 40m

Seattle/Tacoma Intl

Wed 2/4

3:10 pm-12:39 am

2 stops30h 29m

$245

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Fri 5/15

5:15 pm-8:28 pm

2 stops30h 13m

Seattle/Tacoma Intl

Tue 5/19

7:05 am-5:28 am

2 stops19h 23m

$248

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Thu 1/15

6:00 am-2:31 pm

2 stops11h 31m

Seattle/Tacoma Intl

Wed 1/21

5:50 am-3:46 pm

1 stop6h 56m

$271

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Tue 1/13

4:15 pm-10:16 pm

1 stop9h 01m

Seattle/Tacoma Intl

Tue 1/20

5:50 am-3:46 pm

1 stop6h 56m

$273

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Thu 1/22

6:00 am-2:20 pm

1 stop11h 20m

Seattle/Tacoma Intl

Sun 1/25

3:10 pm-4:53 pm

1 stop22h 43m

$277

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Wed 1/21

5:45 pm-2:20 pm

1 stop23h 35m

Seattle/Tacoma Intl

Sun 1/25

3:10 pm-4:53 pm

1 stop22h 43m

$277

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Wed 1/21

5:45 pm-2:20 pm

1 stop23h 35m

Seattle/Tacoma Intl

Sat 1/24

11:55 am-12:40 am

2 stops9h 45m

$292

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Wed 1/21

3:10 pm-11:15 pm

1 stop11h 05m

Seattle/Tacoma Intl

Sat 1/24

8:10 am-11:54 pm

1 stop12h 44m

$300

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Tue 1/20

7:27 pm-6:26 pm

2 stops25h 59m

Seattle/Tacoma Intl

Thu 1/22

7:00 am-9:18 pm

1 stop11h 18m

$300

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Wed 2/18

6:20 am-3:27 pm

1 stop12h 07m

Portland

Mon 2/23

3:50 pm-10:26 am

2 stops15h 36m

$438

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 26 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 $182). Flying from Ottawa to State of Washington in February is currently the most expensive (average of $358). 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 December 17, 2025.

A simple way to save on the total cost of your ticket is to fly from Ottawa to State of Washington in the evening. If you’re flexible enough to do this you can expect to save up to 33% on your trip compared to booking a flight in the afternoon.

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 December 17, 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
9,092 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).
United Airlines
7.4
Good
9,092 reviews
United Airlines
7.4
Good
9,092 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).
WestJet
7.2
Good
3,202 reviews
United Airlines
7.4
Good
9,092 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).
Air Canada
7.1
Good
10,531 reviews
United Airlines
7.4
Good
9,092 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).

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 11h 31m. Fly via WestJet, Air Canada, or United Airlines 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?

    $155 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on United Airlines and Air Canada, with prices starting from $198 and $201, 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 $182). Flying from Ottawa to State of Washington in February is currently the most expensive (average of $358). 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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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 December 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$275Average$424FlexibilityNo cancel feeOn-time69%
WestJetCheapest$277Average$480FlexibilityNo cancel feeOn-time60%
Air CanadaCheapest$290Average$488FlexibilityNo cancel feeOn-time67%

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