Washington

$122+ Cheap flights from Ontario 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 3/25. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SEA
feb. 25 — mar. 41
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Cheap flight deals from Ontario to Washington

Keep the following information in mind while searching for Ontario to Washington flight deals. Data was last updated febrero 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$233
(Mytrip)

One-way from

$122
(Kiwi.com)

Popular in

May

Cheapest in

January

Average price

$266

Good round-trip deal

$250 or less

Good one-way deal

$182 or less
Provider with most accurate pricing for Toronto (YTO)-Seattle/Tacoma Intl flight deals.
Provider most trusted by Cheapflights users for Toronto (YTO)-Seattle/Tacoma Intl flights.
From Ontario to Washington
One-way flight from Ontario to Washington
Highest demand for flights based on searches. 14% potential increase in price ($69 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Average for round-trip flights in February 2025
Price to beat on a round-trip flight from Ontario to Washington.
Price to beat on a one-way flight from Ontario to Washington.

Find flight deals from Ontario to Washington

Cheapest flights from Ontario to Washington
Explore the most affordable flight options available from Ontario to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on febrero 20, 2025.

This Mytrip deal was found by Cheapflights users on 2/19. 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.
jue. 3/207:25 pmYYZ - SEA
1 stop16h 18mMultiple Airlines
mar. 3/258:04 pmSEA - YYZ
2 stops30h 51mMultiple Airlines
Deal found 2/19$233
This Air Canada deal was found by Cheapflights users on 2/19. 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.
jue. 3/207:05 pmYYZ - SEA
Nonstop5h 25mAir Canada
mar. 3/256:05 amSEA - YYZ
Nonstop4h 45mAir Canada
Deal found 2/19$242
This United Airlines deal was found by Cheapflights users on 2/19. 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.
mar. 4/87:05 pmYYZ - SEA
Nonstop5h 21mUnited Airlines
mar. 4/156:05 amSEA - YYZ
Nonstop4h 55mUnited Airlines
Deal found 2/19$243
This Trip.com deal was found by Cheapflights users on 2/20. 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.
jue. 3/134:20 pmYYZ - SEA
Nonstop5h 24mAlaska Airlines
mié. 3/197:15 amSEA - YYZ
Nonstop4h 40mAlaska Airlines
Deal found 2/20$248
This Kiwi.com deal was found by Cheapflights users on 2/19. 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.
jue. 4/38:00 pmYYZ - PDX
1 stop15h 47mMultiple Airlines
mar. 4/811:15 amPDX - YYZ
2 stops16h 02mMultiple Airlines
Deal found 2/19$252
This Booking.com deal was found by Cheapflights users on 2/19. 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.
mar. 4/84:20 pmYTZ - SEA
2 stops8h 43mAir Canada
mar. 4/155:45 amSEA - YTZ
2 stops11h 05mAir Canada
Deal found 2/19$260
This Vakatrip deal was found by Cheapflights users on 2/19. 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 Vakatrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/141:30 pmYYZ - SEA
1 stop9h 58mWestJet
jue. 6/127:05 amSEA - YYZ
2 stops10h 58mWestJet
Deal found 2/19$262
This Delta deal was found by Cheapflights users on 2/19. 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.
mar. 4/812:14 pmYYZ - SEA
1 stop13h 20mDelta
lun. 4/1412:40 amSEA - YYZ
1 stop7h 54mDelta
Deal found 2/19$274
This American Airlines deal was found by Cheapflights users on 2/20. 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.
mié. 3/265:14 pmYYZ - SEA
1 stop10h 34mAmerican Airlines
dom. 3/3011:14 pmSEA - YYZ
1 stop8h 01mAmerican Airlines
Deal found 2/20$288
This Flysmarter deal was found by Cheapflights users on 2/19. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 3/1312:35 pmYYZ - SEA
2 stops11h 21mBritish Airways
mié. 3/1911:14 pmSEA - YYZ
1 stop8h 01mBritish Airways
Deal found 2/19$290
This Kiwi.com deal was found by Cheapflights users on 2/19. 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.
vie. 4/49:30 pmYKF - SEA
1 stop20h 04mMultiple Airlines
mié. 4/911:30 amSEA - YKF
2 stops10h 46mMultiple Airlines
Deal found 2/19$293
This Kiwi.com deal was found by Cheapflights users on 2/19. 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.
jue. 4/36:30 amYKF - SEA
2 stops30h 30mWestJet
mié. 4/93:15 pmSEA - YKF
1 stop7h 01mWestJet
Deal found 2/19$296

Find flights from Ontario to Washington within your budget

Customize your flight search to find flights from Ontario 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 febrero 20, 2025.

Fly from

Ontario

Fly to

Washington

Route

Depart

Return

Price

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

jue. 3/20

7:25 pm-8:43 am

1 stop16h 18m

Seattle/Tacoma Intl

mar. 3/25

8:04 pm-5:55 am

2 stops30h 51m

$233

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

jue. 3/20

7:05 pm-9:30 pm

Nonstop5h 25m

Seattle/Tacoma Intl

mar. 3/25

7:05 pm-6:09 am

1 stop8h 04m

$242

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

mar. 4/8

7:05 pm-9:26 pm

Nonstop5h 21m

Seattle/Tacoma Intl

mar. 4/15

6:05 am-2:00 pm

Nonstop4h 55m

$243

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

jue. 3/13

4:20 pm-6:44 pm

Nonstop5h 24m

Seattle/Tacoma Intl

mié. 3/19

7:15 am-2:55 pm

Nonstop4h 40m

$248

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

jue. 4/3

8:00 pm-8:47 am

1 stop15h 47m

Portland

mar. 4/8

11:15 am-6:17 am

2 stops16h 02m

$252

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

mar. 4/8

4:20 pm-10:03 pm

2 stops8h 43m

Seattle/Tacoma Intl

mar. 4/15

5:45 am-7:50 pm

2 stops11h 05m

$260

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

mié. 5/14

1:30 pm-8:28 pm

1 stop9h 58m

Seattle/Tacoma Intl

jue. 6/12

7:05 am-9:03 pm

2 stops10h 58m

$262

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

mar. 4/8

12:14 pm-10:34 pm

1 stop13h 20m

Seattle/Tacoma Intl

lun. 4/14

12:40 am-11:34 am

1 stop7h 54m

$274

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

mié. 3/26

5:14 pm-12:48 am

1 stop10h 34m

Seattle/Tacoma Intl

dom. 3/30

11:14 pm-10:15 am

1 stop8h 01m

$288

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

jue. 3/13

12:35 pm-8:56 pm

2 stops11h 21m

Seattle/Tacoma Intl

mié. 3/19

11:14 pm-10:15 am

1 stop8h 01m

$290

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 60 results
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Best time to book a flight from Ontario to Washington

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

Travel insights for flights from Ontario to Washington

Get recent, data-driven insights about flights from Ontario to Washington including ideal travel times, pricing trends, and more.

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

Currently, January is the cheapest month in which you can book a flight from Region of Ontario to State of Washington (average of $238). Flying from Region of Ontario to State of Washington in July is currently the most expensive (average of $411). 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 ON to WA?

Find hourly flight availability from Ontario 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 febrero 20, 2025.

When flying from Region of Ontario to State of Washington, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Region of Ontario to State of Washington

Explore weekly flight availability from Ontario to Washington. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated febrero 20, 2025.

The most flights from CAON to USWA are scheduled on a Monday (5 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (3 on average).

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 febrero 20, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta and Austrian Airlines from Ontario to Washington. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

8.0
Very good

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from Ontario to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What are the cheapest airlines to fly from Region of Ontario to State of Washington one-way?

    The cheapest airlines for a one-way flight from Region of Ontario to State of Washington are Air Canada ($147), Alaska Airlines ($153), and WestJet ($155).

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Region of Ontario to State of Washington (average of $238). Flying from Region of Ontario to State of Washington in July is currently the most expensive (average of $411). 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 Ontario to Washington

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Ontario to Washington

Discover the top 6 airlines that operate flights from Ontario 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 febrero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$139Average$504FlexibilityNo cancel feeOn-time67%
WestJetCheapest$163Average$442FlexibilityNo cancel feeOn-time60%
United AirlinesCheapest$240Average$479FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$246Average$419FlexibilityNo cancel feeOn-time75%
DeltaCheapest$292Average$464FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$402Average$695FlexibilityNo cancel feeOn-time71%
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