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$121+ Cheap flights from Washington to Ontario

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 11/20. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YYZ
Nov 5 — Nov 121
1 adult
Tue 11/5
Tue 11/12
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Find flight deals from Washington to Ontario

Cheapest flights from Washington to Ontario
Explore the most affordable flight options available from Washington to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 31, 2024.

This Kiwi.com deal was found by Cheapflights users on 10/30. 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 12/44:00 pmSEA - YYZ
1 stop10h 42mMultiple Airlines
Wed 12/118:00 pmYYZ - SEA
1 stop15h 57mMultiple Airlines
Deal found 10/30$257
This Trip.com deal was found by Cheapflights users on 10/30. 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.
Wed 12/43:15 pmSEA - YYZ
2 stops11h 45mWestJet
Wed 12/117:55 amYYZ - SEA
1 stop9h 26mWestJet
Deal found 10/30$277
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/77:22 amSEA - YYZ
Nonstop4h 33mAlaska Airlines
Fri 12/134:20 pmYYZ - SEA
Nonstop5h 19mAlaska Airlines
Deal found 10/29$287
This Kiwi.com deal was found by Cheapflights users on 10/30. 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.
Mon 11/255:28 pmSEA - YUL
1 stop20h 07mMultiple Airlines
Tue 12/35:35 pmYUL - SEA
1 stop24h 18mMultiple Airlines
Deal found 10/30$291
This Kiwi.com deal was found by Cheapflights users on 10/31. 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.
Thu 12/55:00 amPDX - YYZ
1 stop21h 42mMultiple Airlines
Tue 12/1011:25 amYYZ - PDX
1 stop12h 03mMultiple Airlines
Deal found 10/31$317
This Air Canada deal was found by Cheapflights users on 10/31. 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.
Fri 11/296:05 amSEA - YYZ
Nonstop4h 45mAir Canada
Mon 12/27:15 pmYYZ - SEA
Nonstop5h 25mAir Canada
Deal found 10/31$326
This Delta deal was found by Cheapflights users on 10/31. 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 12/258:30 amSEA - YYZ
1 stop11h 38mDelta
Tue 1/145:40 pmYYZ - SEA
1 stop7h 45mDelta
Deal found 10/31$329
This Kiwi.com deal was found by Cheapflights users on 10/31. 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 11/208:28 pmSEA - YOW
2 stops38h 52mMultiple Airlines
Tue 11/266:15 amYOW - SEA
1 stop11h 06mMultiple Airlines
Deal found 10/31$332
This Delta deal was found by Cheapflights users on 10/30. 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.
Thu 12/55:10 amPDX - YYZ
1 stop7h 44mDelta
Tue 12/105:30 pmYYZ - PDX
1 stop7h 33mDelta
Deal found 10/30$337
This Delta deal was found by Cheapflights users on 10/30. 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.
Thu 11/2812:49 pmGEG - YYZ
1 stop8h 10mDelta
Thu 12/56:30 amYYZ - GEG
1 stop9h 35mDelta
Deal found 10/30$338
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.
Thu 11/283:15 pmSEA - YOW
2 stops11h 18mWestJet
Wed 12/43:55 pmYOW - SEA
1 stop25h 26mWestJet
Deal found 10/29$339
This United Airlines deal was found by Cheapflights users on 10/30. 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 12/79:25 amSEA - YYZ
1 stop11h 52mUnited Airlines
Fri 12/137:15 pmYYZ - SEA
Nonstop5h 25mUnited Airlines
Deal found 10/30$344

Find flights from Washington to Ontario within your budget

Customize your flight search to find flights from Washington to Ontario 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 2,570,725 searches. Data last updated October 31, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

Wed 11/20

5:15 am-6:46 am

1 stop22h 31m

$121

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sat 2/1

7:27 am-3:05 pm

Nonstop4h 38m

$128

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sat 2/1

11:05 pm-9:03 am

1 stop6h 58m

$138

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Mon 12/30

6:05 am-1:50 pm

Nonstop4h 45m

$139

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Tue 12/31

3:05 pm-12:57 am

1 stop6h 52m

$144

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sun 12/29

12:31 am-5:40 pm

1 stop14h 09m

$149

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Fri 12/13

3:15 pm-12:46 am

1 stop30h 31m

$163

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Wed 12/4

4:00 pm-4:35 pm

1 stop21h 35m

$123

SpokaneToronto

GEG - YYZ

GEGYYZ

Spokane

Sun 12/15

5:00 am-11:34 pm

2 stops15h 34m

$141

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Mon 2/3

9:57 am-6:43 am

1 stop17h 46m

$134

Flights are sorted by cheapest first

Deals found on 10/31

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

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

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

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

Currently, January is the cheapest month in which you can book a flight from State of Washington to Region of Ontario (average of $242). Flying from State of Washington to Region of Ontario in July is currently the most expensive (average of $359). 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 WA to ON?

Find hourly flight availability from Washington to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 31, 2024.

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

Rainfall in Ontario by month

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

In terms of precipitation, rainfall in Region of Ontario ranges from 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Region of Ontario when rainfall is around 2.0 in.

Temperature in Ontario by month

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

If weather is an important factor for your trip to Region of Ontario, 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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated October 31, 2024.
Read reviews from past customers who have flown United Airlines, American Airlines and Alaska Airlines from Washington to Ontario. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,420 reviews

Comfort

7.9

Crew

8.6

Entertainment

7.1

Boarding

8.2

Overall

8.0

Food

7.2

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Alaska Airlines
8.0
Very good
9,420 reviews
Alaska Airlines
8.0
Very good
9,420 reviews

Comfort

7.9

Crew

8.6

Entertainment

7.1

Boarding

8.2

Overall

8.0

Food

7.2

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Delta
8.0
Very good
8,835 reviews
Alaska Airlines
8.0
Very good
9,420 reviews

Comfort

7.9

Crew

8.6

Entertainment

7.1

Boarding

8.2

Overall

8.0

Food

7.2

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

United Airlines
7.4
Good
9,240 reviews
Alaska Airlines
8.0
Very good
9,420 reviews

Comfort

7.9

Crew

8.6

Entertainment

7.1

Boarding

8.2

Overall

8.0

Food

7.2

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

WestJet
7.3
Good
2,804 reviews
Alaska Airlines
8.0
Very good
9,420 reviews

Comfort

7.9

Crew

8.6

Entertainment

7.1

Boarding

8.2

Overall

8.0

Food

7.2

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,420 reviews

Comfort

7.9

Crew

8.6

Entertainment

7.1

Boarding

8.2

Overall

8.0

Food

7.2

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Related info for your journey

Find useful and relevant information for your journey from Washington to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from State of Washington to Region of Ontario for under $300 on Cheapflights?

    Yes, there are multiple flights from State of Washington to Region of Ontario for under $300. The cheapest flight booked recently is on Multiple Airlines for just $257, but on average you can expect to pay $331.

  • Are there nonstop flights from State of Washington to Region of Ontario for under $300 on Cheapflights?

    Cheapflights has at least 4 direct flights from State of Washington to Region of Ontario under $300. A good price for a nonstop flight from State of Washington to Region of Ontario is less than $339.

  • Are there last-minute flights available from State of Washington to Region of Ontario for under $400?

    There are currently 20+ open flights from State of Washington to Region of Ontario within the next 7 days for less than $400.

  • What days are nonstop flights available from State of Washington to Region of Ontario?

    Nonstop flights can be found on the following days: Monday, Tuesday, Friday, Saturday.

  • How many flights depart from State of Washington to Region of Ontario on average per day?

    On average, you can expect to see 6 flights from State of Washington to Region of Ontario a day.
    Early Morning (Midnight to 6am) - 67% of flight departures
    Morning (6am - Noon) - 33% of flight departures

  • How long is the flight from State of Washington to Region of Ontario?

    Departing from State of Washington to Region of Ontario will take you 4h 33m. State of Washington and Region of Ontario are separated by a distance of 2066 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 State of Washington to Region of Ontario one-way?

    To fly one-way, consider booking your trip with WestJet, which is currently one of the cheapest options available, starting at $126. Alaska Airlines flights start at $128 while deals on Delta start at $138 one-way.

  • What does SEA to YYZ mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Seattle/Tacoma Intl Airport to Toronto Pearson Intl Airport flight would often be abbreviated as a SEA to YYZ flight. Ottawa Airport (YOW), Toronto Island Airport (YTZ), London Airport (YXU), Hamilton Airport (YHM), Toronto Region of Waterloo Intl Airport (YKF) are other airports near this flight route and their unique identifiers/IATA codes.

  • Can I find deals for flights from Washington to Ontario that include extra baggage allowance?

    The amount of baggage you can bring on your Washington to Ontario flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Washington to Ontario with specific airlines?

    Yes, Cheapflights allows you to browse and filter Washington to Ontario flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Washington to Ontario that allow pets onboard?

    Many airlines flying from Washington to Ontario offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Washington to Ontario?

    Yes, you can often find last-minute deals on Washington to Ontario flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the State of Washington to Region of Ontario flight deals updated?

    The State of Washington to Region of Ontario flight deals you see on this page were last updated on 10/31.

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

    Currently, January is the cheapest month in which you can book a flight from State of Washington to Region of Ontario (average of $242). Flying from State of Washington to Region of Ontario in July is currently the most expensive (average of $359). 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 Washington to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Washington to Ontario

Discover the top 6 airlines that operate flights from Washington to Ontario. 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 2,570,725 searches. Data last updated October 31, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$172Average$563FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$192Average$518FlexibilityNo cancel feeOn-time67%
Alaska AirlinesCheapest$248Average$516FlexibilityNo cancel feeOn-time75%
WestJetCheapest$259Average$551FlexibilityNo cancel feeOn-time60%
DeltaCheapest$366Average$580FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$465Average$825FlexibilityNo cancel feeOn-time71%
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