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SEA - YYZ
Sep 17 - Sep 24
Ontario

$122+ Cheap flights from Seattle (SEA) 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 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YYZ
Sep 17 — Sep 241
Tue 9/17
Tue 9/24
1 adult, Economy
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SEA - YYZ
Sep 17 - Sep 24

Find cheap flights from Seattle to Ontario with Cheapflights

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Cheap Seattle to Ontario flights in September & October 2024

Find cheap flight options from Seattle to Ontario specifically for the months of September and October 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,854,678 searches. Prices were last updated on September 12, 2024.
Scroll through some of the best deals on flights from Seattle to Ontario in 2024. Check back in a little while for more flight options.
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Wed 10/301:33 pmSEA - YYZ
1 stop14h 13mMultiple Airlines
Mon 11/412:00 pmYYZ - SEA
2 stops27h 33mMultiple Airlines
Deal found 9/11$226
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/17:00 amSEA - YYZ
Nonstop4h 30mAlaska Airlines
Tue 10/83:40 pmYYZ - SEA
Nonstop5h 25mAlaska Airlines
Deal found 9/10$267
This oojo deal was found by Cheapflights users on 9/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/21:50 pmSEA - YYZ
2 stops13h 00mWestJet
Sun 10/68:00 amYYZ - SEA
1 stop9h 48mWestJet
Deal found 9/11$284
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Sat 10/197:00 amSEA - YOW
1 stop14h 42mWestJet
Mon 10/288:10 pmYOW - SEA
2 stops21h 11mWestJet
Deal found 9/11$293
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 10/187:00 amSEA - YOW
1 stop8h 37mMultiple Airlines
Mon 10/288:10 pmYOW - SEA
2 stops21h 11mMultiple Airlines
Deal found 9/11$297
This Air Canada deal was found by Cheapflights users on 9/11. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1211:20 pmSEA - YYZ
Nonstop4h 33mAir Canada
Mon 10/144:00 pmYYZ - SEA
1 stop8h 15mAir Canada
Deal found 9/11$311
This Air Canada deal was found by Cheapflights users on 9/11. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/117:40 amSEA - YTZ
1 stop9h 09mAir Canada
Mon 10/143:20 pmYTZ - SEA
1 stop8h 55mAir Canada
Deal found 9/11$311
This Delta deal was found by Cheapflights users on 9/10. 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.
Fri 10/412:30 amSEA - YYZ
1 stop8h 07mDelta
Mon 10/75:50 pmYYZ - SEA
1 stop7h 35mDelta
Deal found 9/10$317
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/33:30 pmSEA - YUL
1 stop20h 23mMultiple Airlines
Tue 10/87:00 amYUL - SEA
2 stops20h 10mMultiple Airlines
Deal found 9/12$341

Seattle to Ontario 2024 flight deals

Discover exclusive flight deals for travel between Seattle and Ontario in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,854,678 searches. Data last updated September 12, 2024.
Scroll through some of the best deals on flights from Seattle to Ontario in 2024. Check back in a little while for more flight options.
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/136:37 pmSEA - YYZ
1 stop9h 09mMultiple Airlines
Fri 11/158:00 pmYYZ - SEA
1 stop24h 37mMultiple Airlines
Deal found 9/10$221
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/17:00 amSEA - YYZ
Nonstop4h 30mAlaska Airlines
Thu 10/33:40 pmYYZ - SEA
Nonstop5h 25mAlaska Airlines
Deal found 9/10$267
This oojo deal was found by Cheapflights users on 9/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/21:50 pmSEA - YYZ
2 stops13h 00mWestJet
Sun 10/68:00 amYYZ - SEA
1 stop9h 48mWestJet
Deal found 9/11$284
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Sat 10/197:00 amSEA - YOW
1 stop14h 42mWestJet
Mon 10/288:10 pmYOW - SEA
2 stops21h 11mWestJet
Deal found 9/11$293
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 10/187:00 amSEA - YOW
1 stop8h 37mMultiple Airlines
Mon 10/288:10 pmYOW - SEA
2 stops21h 11mMultiple Airlines
Deal found 9/11$297
This Air Canada deal was found by Cheapflights users on 9/11. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1211:20 pmSEA - YYZ
Nonstop4h 33mAir Canada
Mon 10/144:00 pmYYZ - SEA
1 stop8h 15mAir Canada
Deal found 9/11$311
This Air Canada deal was found by Cheapflights users on 9/11. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/117:40 amSEA - YTZ
1 stop9h 09mAir Canada
Mon 10/143:20 pmYTZ - SEA
1 stop8h 55mAir Canada
Deal found 9/11$311
This Delta deal was found by Cheapflights users on 9/10. 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.
Fri 10/412:30 amSEA - YYZ
1 stop8h 07mDelta
Mon 10/75:50 pmYYZ - SEA
1 stop7h 35mDelta
Deal found 9/10$317
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/119:50 pmSEA - YUL
1 stop15h 45mMultiple Airlines
Thu 11/145:35 pmYUL - SEA
1 stop30h 58mMultiple Airlines
Deal found 9/12$329

Seattle to Ontario flights leaving soon

Find last-minute flight options from Seattle to Ontario for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,854,678 searches. Data last updated September 12, 2024.
Check out these flights departing soon from Seattle to Ontario. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2212:21 pmSEA - YYZ
1 stop8h 56mMultiple Airlines
Wed 10/22:00 pmYYZ - SEA
2 stops24h 44mMultiple Airlines
Deal found 9/12$416
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/203:40 pmSEA - YUL
2 stops29h 51mMultiple Airlines
Sat 9/288:00 pmYUL - SEA
1 stop31h 10mMultiple Airlines
Deal found 9/12$424
This Trip.com deal was found by Cheapflights users on 9/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/217:00 amSEA - YOW
1 stop8h 32mMultiple Airlines
Sat 10/53:25 pmYOW - SEA
1 stop26h 23mMultiple Airlines
Deal found 9/11$449
This American Airlines deal was found by Cheapflights users on 9/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/186:31 amSEA - YYZ
1 stop9h 06mAmerican Airlines
Wed 9/255:19 pmYYZ - SEA
1 stop8h 41mAmerican Airlines
Deal found 9/11$452
This Air Canada deal was found by Cheapflights users on 9/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/223:10 pmSEA - YYZ
1 stop7h 21mAir Canada
Wed 10/27:55 pmYYZ - SEA
Nonstop5h 21mAir Canada
Deal found 9/12$537
This oojo deal was found by Cheapflights users on 9/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/217:00 amSEA - YOW
2 stops28h 39mWestJet
Sat 10/53:25 pmYOW - SEA
1 stop26h 23mWestJet
Deal found 9/11$542
This American Airlines deal was found by Cheapflights users on 9/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2010:10 pmSEA - YUL
1 stop12h 40mAmerican Airlines
Fri 9/272:35 pmYUL - SEA
1 stop11h 16mAmerican Airlines
Deal found 9/11$625
This Mytrip deal was found by Cheapflights users on 9/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/197:00 amSEA - YTZ
3 stops28h 19mMultiple Airlines
Sun 9/229:40 pmYTZ - SEA
2 stops25h 27mMultiple Airlines
Deal found 9/10$680
This Alaska Airlines deal was found by Cheapflights users on 9/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/187:00 amSEA - YYZ
Nonstop4h 30mAlaska Airlines
Wed 10/93:40 pmYYZ - SEA
Nonstop5h 25mAlaska Airlines
Deal found 9/12$698

One-way flights to Ontario from Seattle

Search for one-way flight options from Seattle to Ontario. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,854,678 searches. Data last updated September 12, 2024.
If you're seeking multiple options on one-way flights from Seattle to Ontario, be sure to check out these deals, which are updated often. Users in need of a round-trip flight from Seattle to Ontario instead should update the search form at the top of page.
This Trip.com deal was found by Cheapflights users on 9/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/171:50 pmSEA - YUL
2 stops27h 25mWestJet
Deal found 9/11$122
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/189:50 pmSEA - YUL
1 stop15h 45mMultiple Airlines
Deal found 9/10$125
This oojo deal was found by Cheapflights users on 9/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/251:50 pmSEA - YHM
1 stop7h 28mWestJet
Deal found 9/11$129
This Delta deal was found by Cheapflights users on 9/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1411:15 pmSEA - YYZ
1 stop6h 35mDelta
Deal found 9/11$132
This Expedia deal was found by Cheapflights users on 9/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/273:15 pmSEA - YYZ
2 stops11h 45mWestJet
Deal found 9/11$133
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/3012:44 pmSEA - YYZ
1 stop31h 00mMultiple Airlines
Deal found 9/12$134
This Air Canada deal was found by Cheapflights users on 9/11. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2011:20 pmSEA - YYZ
Nonstop4h 33mAir Canada
Deal found 9/11$137
This Trip.com deal was found by Cheapflights users on 9/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/227:00 amSEA - YOW
2 stops19h 31mWestJet
Deal found 9/12$138
This Trip.com deal was found by Cheapflights users on 9/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/127:00 amSEA - YOW
1 stop8h 37mMultiple Airlines
Deal found 9/11$139

Find flights from Seattle to Ontario within your budget

Customize your flight search to find flights from Seattle 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 2,854,678 searches. Data last updated September 12, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$221 - $419

Route

Depart

Return

Price

Seattle/Tacoma IntlToronto Pearson Intl

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Wed 11/13

1 stop9h 09m

Toronto Pearson Intl

Fri 11/15

1 stop24h 37m

$221

Seattle/Tacoma IntlToronto Pearson Intl

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Tue 10/1

Nonstop4h 30m

Toronto Pearson Intl

Thu 10/3

Nonstop5h 25m

$267

Seattle/Tacoma IntlToronto Pearson Intl

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Wed 10/2

2 stops13h 00m

Toronto Pearson Intl

Sun 10/6

1 stop9h 48m

$284

Seattle/Tacoma IntlOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Sat 10/19

1 stop14h 42m

Ottawa

Mon 10/28

2 stops21h 11m

$293

Seattle/Tacoma IntlOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Fri 10/18

1 stop8h 37m

Ottawa

Mon 10/28

2 stops21h 11m

$297

Seattle/Tacoma IntlToronto Pearson Intl

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sat 10/12

Nonstop4h 33m

Toronto Pearson Intl

Mon 10/14

1 stop8h 15m

$311

Seattle/Tacoma IntlToronto Pearson Intl

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Fri 10/4

1 stop8h 07m

Toronto Pearson Intl

Mon 10/7

1 stop7h 35m

$317

Seattle/Tacoma IntlToronto Pearson Intl

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Tue 12/10

1 stop9h 19m

Toronto Pearson Intl

Mon 12/16

1 stop12h 51m

$371

Seattle/Tacoma IntlOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Mon 9/23

1 stop12h 38m

Ottawa

Wed 9/25

1 stop8h 31m

$419

Flights are sorted by cheapest first

Deals found on 9/10

Best time to book a flight from Seattle to Ontario

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

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

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

Currently, October is the cheapest month in which you can book a flight from Seattle to Region of Ontario (average of $136). Flying from Seattle to Region of Ontario in April is currently the most expensive (average of $332). 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 SEA to ON?

Find hourly flight availability from Seattle 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 September 12, 2024.

When flying from Seattle to Region of Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 39% versus a flight in the morning.

What is the cheapest day to fly from Seattle to Region of Ontario?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Ontario. Price data was last updated on September 8, 2024.

Travelers seeking maximum savings on their Seattle to Region of Ontario flight should consider departing on Friday mornings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Find deals

Weekly flight availability from Seattle to Region of Ontario

Explore weekly flight availability from Seattle 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 September 12, 2024.

The most flights from SEA to CAON are scheduled on a Monday (7 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (5 on average).

What are the most popular airlines that fly from Seattle to Region of Ontario?

Our users search for these airlines the most when looking for flights from Seattle to Ontario. Data last updated on September 12, 2024.

The most popular airlines flying from Seattle to Region of Ontario are Air Canada, Alaska Airlines and WestJet. Something to consider prior to booking your flight.

Air Canada

Air Canada

From $202

Alaska Airlines

Alaska Airlines

From $215

WestJet

WestJet

From $223

United Airlines

United Airlines

From $188

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 September 12, 2024.
Read through reviews of airlines operating flights from Seattle to Ontario, such as Alaska Airlines, Delta and WestJet. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,357 reviews

Entertainment

7.2

Boarding

8.2

Comfort

7.9

Food

7.2

Overall

8.0

Crew

8.5

Reviews

1 / 10

Seats were not that comfy especially for someone with big hips 😥

Alaska Airlines
8.0
Very good
9,357 reviews
Alaska Airlines
8.0
Very good
9,357 reviews

Entertainment

7.2

Boarding

8.2

Comfort

7.9

Food

7.2

Overall

8.0

Crew

8.5

Reviews

1 / 10

Seats were not that comfy especially for someone with big hips 😥

Delta
8.0
Very good
9,116 reviews
Alaska Airlines
8.0
Very good
9,357 reviews

Entertainment

7.2

Boarding

8.2

Comfort

7.9

Food

7.2

Overall

8.0

Crew

8.5

Reviews

1 / 10

Seats were not that comfy especially for someone with big hips 😥

Porter Airlines
7.7
Good
321 reviews
Alaska Airlines
8.0
Very good
9,357 reviews

Entertainment

7.2

Boarding

8.2

Comfort

7.9

Food

7.2

Overall

8.0

Crew

8.5

Reviews

1 / 10

Seats were not that comfy especially for someone with big hips 😥

United Airlines
7.4
Good
9,570 reviews
Alaska Airlines
8.0
Very good
9,357 reviews

Entertainment

7.2

Boarding

8.2

Comfort

7.9

Food

7.2

Overall

8.0

Crew

8.5

Reviews

1 / 10

Seats were not that comfy especially for someone with big hips 😥

American Airlines
7.3
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,357 reviews

Entertainment

7.2

Boarding

8.2

Comfort

7.9

Food

7.2

Overall

8.0

Crew

8.5

Reviews

1 / 10

Seats were not that comfy especially for someone with big hips 😥

Related info for your journey

Find useful and relevant information for your journey from Seattle to Ontario. 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 Seattle to Ontario?

    For a flight from Seattle to Ontario, you will be flying from Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city.

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

    Yes, there are multiple flights from Seattle to Region of Ontario for under $300. The cheapest flight booked recently is on Multiple Airlines for just $221, but on average you can expect to pay $354.

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

    Cheapflights has at least 7 direct flights from Seattle to Region of Ontario under $300. A good price for a nonstop flight from Seattle to Region of Ontario is less than $462.

  • Are there last-minute flights available from Seattle to Region of Ontario for under $500?

    There are currently 20+ open flights from Seattle to Region of Ontario within the next 7 days for less than $500.

  • What are the cheapest airlines to fly from Seattle 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 $122. Delta flights start at $132 while deals on Air Canada start at $137 one-way.

  • What are the most popular routes from Seattle to Region of Ontario?

    The most popular route from Seattle to Region of Ontario is Seattle/Tacoma Intl - Toronto Pearson Intl. You may also consider Seattle/Tacoma Intl - Montreal Pierre Elliott Trudeau Intl or Seattle/Tacoma Intl - Toronto Kitchener-Waterloo.

  • What are the most reliable airlines from Seattle to Region of Ontario?

    The top 3 most reliable airlines when flying from Seattle to Region of Ontario are Alaska Airlines (66%), Turkish Airlines (35%) and Air Canada (28%).

  • What are the cheapest flights from Seattle to Region of Ontario?

    Looking for the cheapest flight from Seattle to Region of Ontario? While on average our users pay $1,779, our data indicates the cheapest price to be $153. The most popular route (Seattle/Tacoma Intl - Toronto Pearson Intl), is priced around $221.

  • What does SEA to YYZ mean?

    This is defined as Seattle/Tacoma Intl Airport (SEA) and Toronto Pearson Intl Airport (YYZ). Codes like Toronto Pearson Intl Airport are often used to just call airports uniquely. Ottawa Airport (YOW), Toronto Island Airport (YTZ), Hamilton Airport (YHM), Toronto Kitchener-Waterloo Airport (YKF), London Airport (YXU) are other airports near this flight route and their unique identifiers/IATA codes.

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

    The amount of baggage you can bring on your Seattle 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 Seattle to Ontario with specific airlines?

    Yes, Cheapflights allows you to browse and filter Seattle 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 Seattle to Ontario that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle 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 Seattle to Ontario that allow pets onboard?

    Many airlines flying from Seattle 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 Seattle to Ontario?

    Yes, you can often find last-minute deals on Seattle 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 Seattle to Region of Ontario flight deals updated?

    The Seattle to Region of Ontario flight deals you see on this page were last updated on 9/12.

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

    Currently, October is the cheapest month in which you can book a flight from Seattle to Region of Ontario (average of $136). Flying from Seattle to Region of Ontario in April is currently the most expensive (average of $332). 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.

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Alternative routes for Seattle 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 Seattle to Ontario

Discover the top 6 airlines that operate flights from Seattle 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 2,854,678 searches. Data last updated September 12, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$188Average$631FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$202Average$538FlexibilityNo cancel feeOn-time67%
Alaska AirlinesCheapest$248Average$518FlexibilityNo cancel feeOn-time75%
WestJetCheapest$274Average$561FlexibilityNo cancel feeOn-time60%
American AirlinesCheapest$465Average$825FlexibilityNo cancel feeOn-time71%
DeltaCheapest$468Average$573FlexibilityNo cancel feeOn-timeN/A