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$193+ 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 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — SEA
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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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 October 30, 2025.

This Trip.com deal was found by Cheapflights users on 10/28. 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.
Tue 12/25:40 amYOW - SEA
2 stops11h 40mWestJet
Wed 12/103:10 pmSEA - YOW
1 stop22h 43mWestJet
Deal found 10/28$301
This oojo deal was found by Cheapflights users on 10/28. 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.
Tue 11/255:40 amYOW - SEA
2 stops11h 40mWestJet
Tue 12/23:10 pmSEA - YOW
2 stops30h 32mWestJet
Deal found 10/28$315
This oojo deal was found by Cheapflights users on 10/28. 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.
Mon 12/85:45 pmYOW - SEA
1 stop23h 35mWestJet
Wed 12/103:10 pmSEA - YOW
2 stops30h 32mWestJet
Deal found 10/28$337
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Tue 12/95:40 amYOW - SEA
2 stops35h 40mMultiple Airlines
Wed 12/1011:10 pmSEA - YOW
1 stop12h 34mMultiple Airlines
Deal found 10/28$363
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Tue 11/186:45 pmYOW - SEA
1 stop15h 26mMultiple Airlines
Tue 11/2511:10 pmSEA - YOW
1 stop12h 34mMultiple Airlines
Deal found 10/28$372
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Sat 12/66:45 pmYOW - SEA
2 stops18h 37mMultiple Airlines
Mon 12/87:54 pmSEA - YOW
1 stop15h 50mMultiple Airlines
Deal found 10/28$379
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Tue 12/237:27 pmYOW - PDX
2 stops20h 53mUnited Airlines
Tue 12/3010:52 pmPDX - YOW
1 stop12h 35mUnited Airlines
Deal found 10/28$535
This American Airlines deal was found by Cheapflights users on 10/29. 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.
Sat 12/136:45 amYOW - PDX
2 stops17h 22mAmerican Airlines
Sat 12/203:02 pmPDX - YOW
2 stops22h 49mAmerican Airlines
Deal found 10/29$597
This Air Canada deal was found by Cheapflights users on 10/28. 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.
Tue 12/236:15 amYOW - PDX
1 stop15h 46mAir Canada
Tue 12/3011:55 pmPDX - YOW
1 stop14h 23mAir Canada
Deal found 10/28$617
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Sat 12/139:25 amYOW - PDX
1 stop13h 35mMultiple Airlines
Sat 12/209:42 pmPDX - YOW
2 stops23h 59mMultiple Airlines
Deal found 10/29$658
This WestJet deal was found by Cheapflights users on 10/29. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/136:00 amYOW - PDX
2 stops38h 43mWestJet
Fri 12/1912:32 amPDX - YOW
2 stops21h 10mWestJet
Deal found 10/29$900
This Mytrip deal was found by Cheapflights users on 10/28. 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.
Tue 12/233:00 pmYOW - PDX
3 stops29h 26mMultiple Airlines
Tue 12/307:56 pmPDX - YOW
3 stops25h 45mMultiple Airlines
Deal found 10/28$926

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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$243
(Air Canada)

One-way from

$193
(oojo)

Popular in

December

Cheapest in

September

Average price

$383
Provider with most accurate pricing for Ottawa-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ottawa-Seattle/Tacoma Intl flights.
Search Deals
From Ottawa to Washington
Search Deals
One-way flight from Ottawa to Washington
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. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 October 30, 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

Tue 4/14

5:50 pm-10:08 pm

1 stop7h 18m

Seattle/Tacoma Intl

Wed 4/15

8:00 pm-6:43 am

1 stop7h 43m

$243

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Tue 4/14

6:52 am-3:05 pm

2 stops11h 13m

Seattle/Tacoma Intl

Wed 4/15

10:45 pm-12:41 pm

1 stop10h 56m

$248

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Tue 12/9

5:40 am-2:20 pm

2 stops11h 40m

Seattle/Tacoma Intl

Wed 12/10

3:10 pm-12:42 am

2 stops30h 32m

$315

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Tue 11/25

6:00 am-2:20 pm

1 stop11h 20m

Seattle/Tacoma Intl

Tue 12/2

3:10 pm-4:53 pm

1 stop22h 43m

$323

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Mon 12/8

5:45 pm-2:20 pm

1 stop23h 35m

Seattle/Tacoma Intl

Wed 12/10

3:10 pm-4:53 pm

1 stop22h 43m

$323

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Tue 3/3

5:45 am-2:40 pm

2 stops11h 55m

Portland

Wed 3/4

7:00 pm-6:43 am

1 stop8h 43m

$496

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Tue 12/23

7:27 pm-1:20 pm

2 stops20h 53m

Portland

Tue 12/30

10:52 pm-2:27 pm

1 stop12h 35m

$535

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Sat 12/13

6:45 am-9:07 pm

2 stops17h 22m

Portland

Sat 12/20

3:02 pm-4:51 pm

2 stops22h 49m

$597

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Tue 12/2

6:00 am-2:20 pm

1 stop11h 20m

$193

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Sun 11/23

5:40 am-2:20 pm

2 stops35h 40m

$215

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 16 results
1
2

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, November is the cheapest month in which you can book a flight from Ottawa to State of Washington (average of $203). Flying from Ottawa to State of Washington in December is currently the most expensive (average of $365). 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 October 30, 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 October 30, 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
8,998 reviews

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
8,998 reviews
United Airlines
7.4
Good
8,998 reviews

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
WestJet
7.2
Good
3,149 reviews
United Airlines
7.4
Good
8,998 reviews

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Air Canada
7.1
Good
10,376 reviews
United Airlines
7.4
Good
8,998 reviews

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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 18m. Fly via 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.

  • 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, November is the cheapest month in which you can book a flight from Ottawa to State of Washington (average of $203). Flying from Ottawa to State of Washington in December is currently the most expensive (average of $365). 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

See prices for flight routes from nearby airports that may be better suited for you.
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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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$275Average$444FlexibilityNo cancel feeOn-time69%
WestJetCheapest$277Average$480FlexibilityNo cancel feeOn-time60%
Air CanadaCheapest$290Average$490FlexibilityNo cancel feeOn-time67%

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