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$140+ 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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — SEA
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$221
(Flightnetwork)

One-way from

$140
(Trip.com)

Popular in

December

Cheapest in

August

Average price

$434
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 ($46 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 June 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 June 12, 2025.

This Flightnetwork deal was found by Cheapflights users on 6/11. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/236:10 amYOW - PDX
2 stops9h 55mWestJet
Wed 7/301:45 pmPDX - YOW
2 stops12h 40mWestJet
Deal found 6/11$221
This Flightnetwork deal was found by Cheapflights users on 6/9. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/256:00 pmYOW - PDX
1 stop8h 01mAir Canada
Fri 8/16:15 amPDX - YOW
1 stop7h 01mAir Canada
Deal found 6/9$249
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/207:29 pmYOW - PDX
2 stops15h 13mUnited Airlines
Fri 6/2710:21 pmPDX - YOW
1 stop7h 40mUnited Airlines
Deal found 6/10$294
This oojo deal was found by Cheapflights users on 6/10. 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.
Thu 9/43:45 pmYOW - SEA
1 stop7h 44mWestJet
Sun 9/142:05 pmSEA - YOW
1 stop7h 35mWestJet
Deal found 6/10$296
This Booking.com deal was found by Cheapflights users on 6/9. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/112:25 pmYOW - SEA
1 stop9h 16mAir Canada
Mon 8/185:30 amSEA - YOW
2 stops11h 26mAir Canada
Deal found 6/9$326
This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/236:10 amYOW - PDX
2 stops9h 55mMultiple Airlines
Wed 7/307:40 pmPDX - YOW
3 stops30h 45mMultiple Airlines
Deal found 6/11$358
This Kiwi.com deal was found by Cheapflights users on 6/11. 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.
Fri 7/116:10 amYOW - SEA
2 stops17h 18mMultiple Airlines
Fri 7/181:15 pmSEA - YOW
1 stop20h 50mMultiple Airlines
Deal found 6/11$408
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Sat 8/236:33 amYOW - SEA
2 stops12h 19mUnited Airlines
Mon 9/297:04 pmSEA - YOW
2 stops11h 07mUnited Airlines
Deal found 6/11$409
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/295:55 amYOW - PDX
2 stops17h 28mDelta
Sun 8/36:15 amPDX - YOW
2 stops21h 30mDelta
Deal found 6/10$477
This Delta deal was found by Cheapflights users on 6/12. 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 7/163:45 pmYOW - SEA
1 stop7h 43mDelta
Tue 7/222:05 pmSEA - YOW
1 stop7h 36mDelta
Deal found 6/12$1,067
This Lufthansa deal was found by Cheapflights users on 6/11. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/216:40 pmYOW - SEA
2 stops44h 15mLufthansa
Sun 9/282:20 pmSEA - YOW
2 stops23h 54mLufthansa
Deal found 6/11$11,852

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 June 12, 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

Wed 7/23

6:10 am-1:05 pm

2 stops9h 55m

Portland

Wed 7/30

1:45 pm-5:25 am

2 stops12h 40m

$221

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Fri 7/25

6:00 pm-11:01 pm

1 stop8h 01m

Portland

Fri 8/1

6:15 am-4:16 pm

1 stop7h 01m

$249

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Thu 9/4

3:45 pm-8:29 pm

1 stop7h 44m

Seattle/Tacoma Intl

Sun 9/14

2:05 pm-12:40 am

1 stop7h 35m

$296

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Mon 8/11

2:25 pm-8:41 pm

1 stop9h 16m

Seattle/Tacoma Intl

Mon 8/18

5:30 am-7:56 pm

2 stops11h 26m

$326

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Sat 7/19

1:55 pm-10:29 pm

2 stops11h 34m

Portland

Fri 7/25

11:20 pm-2:27 pm

1 stop12h 07m

$330

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Wed 7/23

6:10 am-1:05 pm

2 stops9h 55m

Portland

Wed 7/30

7:40 pm-5:25 am

3 stops30h 45m

$358

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Fri 7/11

6:10 am-8:28 pm

2 stops17h 18m

Seattle/Tacoma Intl

Fri 7/18

1:15 pm-1:05 pm

1 stop20h 50m

$408

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Sat 8/23

6:33 am-3:34 pm

1 stop12h 01m

Seattle/Tacoma Intl

Sat 9/27

5:00 am-9:35 pm

2 stops13h 35m

$409

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Tue 7/29

5:55 am-8:23 pm

2 stops17h 28m

Portland

Sun 8/3

6:15 am-6:45 am

2 stops21h 30m

$477

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Wed 7/16

3:45 pm-8:28 pm

1 stop7h 43m

Seattle/Tacoma Intl

Tue 7/22

2:05 pm-12:41 am

1 stop7h 36m

$1,067

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 19 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, 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 $391). 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 June 12, 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 June 12, 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
7,946 reviews

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
WestJet
7.2
Good
2,868 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
9,537 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Lufthansa
6.8
Okay
7,139 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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?

    $140 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 $160 and $169, 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 $391). 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$277Average$377FlexibilityNo cancel feeOn-time60%
United AirlinesCheapest$323Average$444FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$328Average$443FlexibilityNo cancel feeOn-time67%

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