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$97+ 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 1/13. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YYZ
Dec 27 — Jan 31
Fri 12/27
Fri 1/3
1 adult, Economy
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Cheap flight deals from Washington to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Washington (USWA) to Ontario (CAON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 22, 2024.

Round-trip from

$262
(Kiwi.com)

One-way from

$97
(Kiwi.com)
From Washington to Ontario
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One-way flight from Washington to Ontario
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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 December 22, 2024.

This Kiwi.com deal was found by Cheapflights users on 12/21. 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 12/313:15 pmSEA - YYZ
1 stop12h 20mMultiple Airlines
Sun 1/59:00 pmYYZ - SEA
1 stop19h 11mMultiple Airlines
Deal found 12/21$497
This American Airlines deal was found by Cheapflights users on 12/20. 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.
Sat 12/285:30 amSEA - YYZ
1 stop14h 09mAmerican Airlines
Sat 1/1811:46 amYYZ - SEA
1 stop10h 24mAmerican Airlines
Deal found 12/20$557
This Flightnetwork deal was found by Cheapflights users on 12/21. 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.
Mon 12/307:15 pmSEA - YYZ
2 stops13h 57mAir Canada
Sat 1/188:00 amYYZ - SEA
1 stop9h 25mAir Canada
Deal found 12/21$561
This FlightHub deal was found by Cheapflights users on 12/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/257:45 pmSEA - YYZ
1 stop7h 30mWestJet
Tue 1/147:55 amYYZ - SEA
1 stop9h 26mWestJet
Deal found 12/21$601
This Booking.com deal was found by Cheapflights users on 12/21. 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.
Sat 12/285:45 amSEA - YOW
2 stops10h 13mAir Canada
Mon 1/66:00 pmYOW - SEA
2 stops18h 50mAir Canada
Deal found 12/21$609
This Alaska Airlines deal was found by Cheapflights users on 12/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/287:26 amSEA - YYZ
Nonstop4h 41mAlaska Airlines
Sat 1/114:20 pmYYZ - SEA
Nonstop5h 23mAlaska Airlines
Deal found 12/21$610
This Delta deal was found by Cheapflights users on 12/21. 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 12/2511:35 amSEA - YYZ
2 stops8h 33mDelta
Tue 1/146:00 amYYZ - SEA
1 stop7h 45mDelta
Deal found 12/21$611
This Air Canada deal was found by Cheapflights users on 12/21. 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.
Wed 12/257:05 pmPDX - YUL
1 stop9h 15mAir Canada
Fri 12/279:00 amYUL - PDX
1 stop16h 09mAir Canada
Deal found 12/21$614
This United Airlines deal was found by Cheapflights users on 12/21. 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 12/257:45 pmPDX - YUL
2 stops11h 35mUnited Airlines
Fri 12/278:05 amYUL - PDX
1 stop17h 40mUnited Airlines
Deal found 12/21$619
This United deal was found by Cheapflights users on 12/21. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/285:00 amSEA - YYZ
1 stop16h 17mUnited Airlines
Sat 1/1112:25 pmYYZ - SEA
2 stops12h 35mUnited Airlines
Deal found 12/21$650
This Kiwi.com deal was found by Cheapflights users on 12/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/247:48 pmPDX - YYZ
2 stops31h 31mMultiple Airlines
Thu 12/261:15 pmYYZ - PDX
1 stop10h 06mMultiple Airlines
Deal found 12/20$680
This Mytrip deal was found by Cheapflights users on 12/21. 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.
Sat 12/287:15 pmSEA - YOW
2 stops11h 27mMultiple Airlines
Mon 1/69:35 pmYOW - SEA
3 stops19h 46mMultiple Airlines
Deal found 12/21$724

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 2,558,603 searches. Data last updated December 22, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Tue 2/4

9:45 am-6:43 am

1 stop17h 58m

Toronto Pearson Intl

Tue 2/11

12:00 pm-12:19 am

2 stops15h 19m

$262

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Mon 1/20

3:15 pm-6:00 am

2 stops11h 45m

Toronto Pearson Intl

Mon 1/27

7:55 am-2:21 pm

1 stop9h 26m

$264

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Wed 1/22

7:27 am-3:05 pm

Nonstop4h 38m

Toronto Pearson Intl

Fri 1/24

4:20 pm-6:43 pm

Nonstop5h 23m

$265

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Tue 2/4

6:05 am-1:50 pm

Nonstop4h 45m

Toronto Pearson Intl

Tue 2/11

7:05 pm-9:30 pm

Nonstop5h 25m

$290

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Mon 1/13

5:23 pm-4:35 pm

1 stop20h 12m

Montreal Pierre Elliott Trudeau Intl

Thu 1/16

1:30 pm-12:19 am

2 stops13h 49m

$293

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Mon 1/13

11:19 am-1:51 pm

2 stops23h 32m

Ottawa

Wed 1/22

6:10 pm-9:21 am

1 stop18h 11m

$298

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Tue 2/4

3:15 pm-4:48 pm

1 stop22h 33m

Ottawa

Tue 2/11

8:10 pm-2:21 pm

2 stops21h 11m

$300

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Tue 2/4

7:50 pm-5:29 am

2 stops30h 39m

Ottawa

Tue 2/11

6:15 am-2:21 pm

1 stop11h 06m

$305

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Tue 2/4

9:45 am-6:53 pm

2 stops30h 08m

Toronto Island

Tue 2/11

2:00 pm-4:43 pm

3 stops29h 43m

$308

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Wed 2/5

5:45 am-8:15 pm

2 stops11h 30m

Toronto Pearson Intl

Wed 2/12

7:05 pm-9:30 pm

Nonstop5h 25m

$313

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

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 $243). 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 December 22, 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.

Weekly flight availability from State of Washington to Region of Ontario

Explore weekly flight availability from Washington to Ontario. 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 December 22, 2024.

The most flights from USWA to CAON are scheduled on a Friday (6 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 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 December 22, 2024.
Read reviews from past customers who have flown Alaska Airlines, United Airlines and American 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
9,537 reviews

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

Food

7.2

Comfort

7.9

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

Alaska Airlines
8.0
Very good
9,537 reviews
Alaska Airlines
8.0
Very good
9,537 reviews

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

Food

7.2

Comfort

7.9

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

Delta
8.0
Very good
8,594 reviews
Alaska Airlines
8.0
Very good
9,537 reviews

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

Food

7.2

Comfort

7.9

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

Aeromexico
7.5
Good
1,915 reviews
Alaska Airlines
8.0
Very good
9,537 reviews

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

Food

7.2

Comfort

7.9

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

United Airlines
7.4
Good
9,028 reviews
Alaska Airlines
8.0
Very good
9,537 reviews

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

Food

7.2

Comfort

7.9

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,537 reviews

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

Food

7.2

Comfort

7.9

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

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.

  • 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 Alaska Airlines, which is currently one of the cheapest options available, starting at $119. WestJet flights start at $123 while deals on Air Canada start at $128 one-way.

  • 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.

  • 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 $243). 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 2,558,603 searches. Data last updated December 22, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$172Average$681FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$176Average$532FlexibilityNo cancel feeOn-time67%
WestJetCheapest$235Average$514FlexibilityNo cancel feeOn-time60%
Alaska AirlinesCheapest$248Average$589FlexibilityNo cancel feeOn-time75%
DeltaCheapest$359Average$580FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$464Average$844FlexibilityNo cancel feeOn-time71%
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