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$149+ 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 6/12. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — SEA
May 4 — May 111
Sun 5/4
Sun 5/11
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 April 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$243
(Trip.com)

One-way from

$149
(Trip.com)

Popular in

December

Cheapest in

March

Average price

$445
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
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Highest demand for flights based on searches. 7% potential increase in price ($33 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 29, 2025.

This Trip.com deal was found by Cheapflights users on 4/28. 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.
Sun 6/16:00 amYOW - PDX
1 stop9h 52mWestJet
Thu 6/51:45 pmPDX - YOW
1 stop7h 56mWestJet
Deal found 4/28$243
This oojo deal was found by Cheapflights users on 4/28. 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.
Wed 5/286:00 amYOW - SEA
1 stop9h 58mWestJet
Wed 6/117:05 amSEA - YOW
1 stop8h 16mWestJet
Deal found 4/28$295
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
Wed 5/219:05 amYOW - SEA
1 stop18h 05mMultiple Airlines
Tue 6/33:20 pmSEA - YOW
2 stops16h 01mMultiple Airlines
Deal found 4/28$350
This Air Canada deal was found by Cheapflights users on 4/28. 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.
Thu 6/122:40 pmYOW - SEA
1 stop8h 57mAir Canada
Thu 6/195:30 amSEA - YOW
1 stop7h 46mAir Canada
Deal found 4/28$353
This Kiwi.com deal was found by Cheapflights users on 4/29. 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.
Tue 6/33:35 pmYOW - PDX
2 stops24h 07mMultiple Airlines
Thu 6/51:45 pmPDX - YOW
1 stop7h 56mMultiple Airlines
Deal found 4/29$368
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Thu 6/125:15 amYOW - SEA
1 stop8h 36mUnited Airlines
Thu 6/1911:50 pmSEA - YOW
2 stops10h 20mUnited Airlines
Deal found 4/28$409
This Air Canada deal was found by Cheapflights users on 4/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/206:00 pmYOW - PDX
1 stop7h 55mAir Canada
Wed 5/286:15 amPDX - YOW
1 stop23h 18mAir Canada
Deal found 4/29$605
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/165:15 amYOW - PDX
3 stops16h 30mUnited Airlines
Tue 7/2912:55 pmPDX - YOW
2 stops17h 16mUnited Airlines
Deal found 4/29$703
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/175:55 amYOW - PDX
2 stops17h 30mDelta
Sun 9/216:15 amPDX - YOW
2 stops15h 07mDelta
Deal found 4/29$1,053

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 April 29, 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

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Sun 6/1

6:00 am-12:52 pm

1 stop9h 52m

Portland

Thu 6/5

1:45 pm-12:41 am

1 stop7h 56m

$243

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Wed 5/28

6:00 am-12:58 pm

1 stop9h 58m

Seattle/Tacoma Intl

Wed 6/11

7:05 am-6:21 pm

1 stop8h 16m

$295

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Wed 5/21

9:05 am-12:10 am

1 stop18h 05m

Seattle/Tacoma Intl

Tue 6/3

3:20 pm-10:21 am

2 stops16h 01m

$350

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Thu 6/12

2:40 pm-8:37 pm

1 stop8h 57m

Seattle/Tacoma Intl

Thu 6/19

5:30 am-4:16 pm

1 stop7h 46m

$353

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Mon 5/19

4:40 pm-12:42 pm

2 stops23h 02m

Portland

Sun 5/25

7:00 am-7:55 pm

1 stop9h 55m

$378

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Thu 6/12

5:15 am-10:51 am

1 stop8h 36m

Seattle/Tacoma Intl

Thu 6/19

11:50 pm-1:10 pm

2 stops10h 20m

$409

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Tue 5/20

6:00 pm-10:55 pm

1 stop7h 55m

Portland

Wed 5/28

6:15 am-8:33 am

1 stop23h 18m

$605

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Wed 7/16

5:15 am-6:45 pm

3 stops16h 30m

Portland

Tue 7/29

12:55 pm-9:11 am

2 stops17h 16m

$703

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Wed 9/17

5:55 am-8:25 pm

2 stops17h 30m

Portland

Sun 9/21

6:15 am-12:22 am

2 stops15h 07m

$1,053

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Thu 6/12

6:00 am-12:52 pm

1 stop9h 52m

$149

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 15 results
1
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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 July is currently the most expensive (average of $405). 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 April 29, 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.

Rainfall in Washington by month

Plan your trip to Washington by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in State of Washington ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit State of Washington when rainfall is around 0.7 in.

Temperature in Washington by month

Plan your trip to Washington by taking into account the average temperature totals by month.

If weather is an important factor for your trip to State of Washington, 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 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 April 29, 2025.
To help decide which airline to fly from Ottawa to Washington, see what other customers have to say about Delta, United Airlines and WestJet. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,929 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,929 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
WestJet
7.2
Good
2,823 reviews
Delta
8.0
Very good
7,929 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air Canada
7.0
Good
9,242 reviews
Delta
8.0
Very good
7,929 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

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

    $149 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 $205 and $312, 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 July is currently the most expensive (average of $405). 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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$277Average$368FlexibilityNo cancel feeOn-time60%
United AirlinesCheapest$296Average$478FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$328Average$441FlexibilityNo cancel feeOn-time67%

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