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Cheap flights from Seattle (SEA) to Ontario from $105

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 6/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
SEA — YYZ
Jun 7 — Jun 141
From?
To?
Fri 6/7
Fri 6/14
1 adult, Economy
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How far in advance should I book a flight from Seattle to Region of Ontario?

Users have found that booking a flight from Seattle to Region of Ontario at least 27 days early can save you up to 88% on average compared to booking a flight this week. If booking 27 days before your flight isn’t an option for you, users have found flights from Seattle to Region of Ontario for as little as $713 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $752 for flights departing within the next 3 days.

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

Our data shows that November tends to be the cheapest month to fly to Region of Ontario from Seattle. Users have commonly found prices around $599 for the month, but tickets can be as low as $214. Due to multiple factors, prepare for potentially higher prices in December.

What is the cheapest time of day to fly from SEA to ON?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Region of Ontario as you normally would.

Cheap Alaska Airlines flights from Seattle to Ontario

Explore cheap flight options specifically provided by Alaska Airlines for the route between Seattle and Ontario. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
Take a look at some of the lowest-priced Alaska Airlines flights heading from Seattle to Ontario. Come back soon if you're not finding the exact deal you're looking for.
Wed 9/187:00 amSEA - YYZ
Nonstop4h 30mAlaska Airlines
Thu 9/263:40 pmYYZ - SEA
Nonstop5h 22mAlaska Airlines
Deal found 6/2$406
Tue 6/257:00 amSEA - YYZ
Nonstop4h 30mAlaska Airlines
Wed 6/263:40 pmYYZ - SEA
Nonstop5h 20mAlaska Airlines
Deal found 6/1$417
Thu 9/57:00 amSEA - YYZ
Nonstop4h 30mAlaska Airlines
Mon 9/93:40 pmYYZ - SEA
Nonstop5h 22mAlaska Airlines
Deal found 6/1$426
Thu 10/177:00 amSEA - YYZ
Nonstop4h 30mAlaska Airlines
Sat 10/193:40 pmYYZ - SEA
Nonstop5h 25mAlaska Airlines
Deal found 6/1$463
Tue 6/187:00 amSEA - YYZ
Nonstop4h 30mAlaska Airlines
Tue 6/253:40 pmYYZ - SEA
Nonstop5h 20mAlaska Airlines
Deal found 6/1$490
Sat 6/86:50 amSEA - YYZ
Nonstop4h 40mAlaska Airlines
Fri 6/213:40 pmYYZ - SEA
Nonstop5h 20mAlaska Airlines
Deal found 5/31$510
Wed 6/126:50 amSEA - YYZ
Nonstop4h 40mAlaska Airlines
Thu 6/133:40 pmYYZ - SEA
Nonstop5h 20mAlaska Airlines
Deal found 6/1$593
Sat 6/86:50 amSEA - YYZ
Nonstop4h 40mAlaska Airlines
Fri 6/216:15 pmYYZ - SEA
1 stop8h 44mAlaska Airlines
Deal found 5/31$604

Cheap Air Canada flights from Seattle to Ontario

Explore cheap flight options specifically provided by Air Canada for the route between Seattle and Ontario. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
Some of the best deals we've found on Air Canada flights traveling from Seattle to Ontario. Ensure the flight price, dates, time, and airline match your criteria before you book.
Wed 9/1811:10 pmSEA - YYZ
Nonstop4h 33mAir Canada
Thu 9/268:05 amYYZ - SEA
1 stop7h 25mAir Canada
Deal found 6/1$411
Tue 9/177:40 amSEA - YTZ
1 stop9h 09mAir Canada
Fri 9/2012:20 pmYTZ - SEA
1 stop11h 55mAir Canada
Deal found 6/1$445
Fri 9/137:40 amSEA - YTZ
1 stop9h 09mAir Canada
Mon 9/1612:20 pmYTZ - SEA
1 stop11h 55mAir Canada
Deal found 6/1$464
Wed 6/197:05 pmSEA - YOW
1 stop8h 14mAir Canada
Thu 9/57:20 amYOW - SEA
1 stop10h 10mAir Canada
Deal found 6/1$544
Sat 8/107:40 amSEA - YTZ
1 stop9h 09mAir Canada
Wed 8/2110:20 amYTZ - SEA
1 stop14h 05mAir Canada
Deal found 6/1$545
Wed 7/177:40 amSEA - YUL
Nonstop5h 06mAir Canada
Sat 7/204:10 pmYUL - SEA
1 stop8h 48mAir Canada
Deal found 6/1$572
Tue 7/1610:40 amSEA - YUL
1 stop7h 21mAir Canada
Sat 7/274:10 pmYUL - SEA
1 stop8h 48mAir Canada
Deal found 6/1$577
Sat 6/87:40 amSEA - YYZ
1 stop8h 49mAir Canada
Fri 6/218:05 amYYZ - SEA
1 stop7h 25mAir Canada
Deal found 5/31$580
Sat 7/207:40 amSEA - YUL
Nonstop5h 06mAir Canada
Mon 7/294:40 pmYUL - SEA
1 stop8h 18mAir Canada
Deal found 6/1$592

Cheap Seattle to Ontario flights in June & July 2024

Find cheap flight options from Seattle to Ontario specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,810,401 searches. Prices were last updated on June 2, 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.
Mon 6/109:49 pmSEA - YYZ
1 stop29h 53mMultiple Airlines
Wed 6/128:00 pmYYZ - SEA
1 stop29h 05mMultiple Airlines
Deal found 6/1$248
Mon 6/109:49 pmSEA - YYZ
1 stop21h 58mMultiple Airlines
Wed 6/198:00 pmYYZ - SEA
1 stop29h 05mMultiple Airlines
Deal found 5/31$264
Mon 6/109:49 pmSEA - YYZ
1 stop29h 53mMultiple Airlines
Thu 6/138:20 pmYYZ - SEA
1 stop15h 17mMultiple Airlines
Deal found 6/1$271
Mon 6/109:49 pmSEA - YYZ
1 stop21h 58mMultiple Airlines
Thu 6/208:20 pmYYZ - SEA
1 stop15h 17mMultiple Airlines
Deal found 5/31$277
Mon 6/109:49 pmSEA - YYZ
1 stop21h 58mMultiple Airlines
Mon 6/178:00 pmYYZ - SEA
1 stop15h 59mMultiple Airlines
Deal found 5/31$278
Wed 6/129:28 amSEA - YYZ
1 stop18h 14mMultiple Airlines
Tue 6/189:35 amYYZ - SEA
1 stop14h 16mMultiple Airlines
Deal found 5/31$282
Wed 6/129:28 amSEA - YYZ
1 stop18h 14mMultiple Airlines
Wed 6/198:00 pmYYZ - SEA
1 stop15h 32mMultiple Airlines
Deal found 5/31$286
Wed 6/129:28 amSEA - YYZ
1 stop18h 14mMultiple Airlines
Thu 6/208:20 pmYYZ - SEA
1 stop15h 17mMultiple Airlines
Deal found 5/31$295
Wed 6/129:28 amSEA - YYZ
1 stop18h 14mMultiple Airlines
Mon 6/178:00 pmYYZ - SEA
1 stop15h 59mMultiple Airlines
Deal found 5/31$296

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 2,810,401 searches. Data last updated June 2, 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.
Mon 6/109:49 pmSEA - YYZ
1 stop29h 53mMultiple Airlines
Wed 6/128:00 pmYYZ - SEA
1 stop29h 05mMultiple Airlines
Deal found 6/1$248
Mon 6/109:49 pmSEA - YYZ
1 stop21h 58mMultiple Airlines
Wed 6/198:00 pmYYZ - SEA
1 stop29h 05mMultiple Airlines
Deal found 5/31$264
Mon 6/109:49 pmSEA - YYZ
1 stop29h 53mMultiple Airlines
Thu 6/138:20 pmYYZ - SEA
1 stop15h 17mMultiple Airlines
Deal found 6/1$271
Mon 6/109:49 pmSEA - YYZ
1 stop21h 58mMultiple Airlines
Thu 6/208:20 pmYYZ - SEA
1 stop15h 17mMultiple Airlines
Deal found 5/31$277
Mon 6/109:49 pmSEA - YYZ
1 stop21h 58mMultiple Airlines
Mon 6/178:00 pmYYZ - SEA
1 stop15h 59mMultiple Airlines
Deal found 5/31$278
Tue 8/278:35 pmSEA - YYZ
1 stop23h 10mMultiple Airlines
Tue 9/1012:20 pmYYZ - SEA
1 stop9h 41mMultiple Airlines
Deal found 6/1$281
Wed 6/129:28 amSEA - YYZ
1 stop18h 14mMultiple Airlines
Tue 6/189:35 amYYZ - SEA
1 stop14h 16mMultiple Airlines
Deal found 5/31$282
Wed 6/129:28 amSEA - YYZ
1 stop18h 14mMultiple Airlines
Wed 6/198:00 pmYYZ - SEA
1 stop15h 32mMultiple Airlines
Deal found 5/31$286
Wed 6/129:28 amSEA - YYZ
1 stop18h 14mMultiple Airlines
Thu 6/208:20 pmYYZ - SEA
1 stop15h 17mMultiple Airlines
Deal found 5/31$295

Non-stop flights to Ontario from Seattle

Discover non-stop flight options from Seattle to Ontario. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
For a shorter flight, select one of these non-stop flights from Seattle to Ontario. Those looking to potentially save on 1 or 2-stop flights from Seattle to Ontario should utilize the search form at the the top of the page.
Wed 8/217:00 amSEA - YYZ
Nonstop4h 30mAlaska Airlines
Wed 8/283:40 pmYYZ - SEA
Nonstop5h 22mAlaska Airlines
Deal found 6/1$387
Wed 8/217:00 amSEA - YYZ
Nonstop4h 30mAlaska Airlines
Thu 8/223:40 pmYYZ - SEA
Nonstop5h 22mAlaska Airlines
Deal found 6/1$406
Tue 6/257:00 amSEA - YYZ
Nonstop4h 30mAlaska Airlines
Wed 6/263:40 pmYYZ - SEA
Nonstop5h 20mAlaska Airlines
Deal found 6/1$417
Thu 9/57:00 amSEA - YYZ
Nonstop4h 30mAlaska Airlines
Sun 9/83:40 pmYYZ - SEA
Nonstop5h 22mAlaska Airlines
Deal found 6/1$426
Mon 6/247:00 amSEA - YYZ
Nonstop4h 30mAlaska Airlines
Wed 6/263:40 pmYYZ - SEA
Nonstop5h 20mAlaska Airlines
Deal found 6/1$436
Thu 10/177:00 amSEA - YYZ
Nonstop4h 30mAlaska Airlines
Sat 10/193:40 pmYYZ - SEA
Nonstop5h 25mAlaska Airlines
Deal found 6/1$463
Thu 8/157:00 amSEA - YYZ
Nonstop4h 30mAlaska Airlines
Sat 8/313:40 pmYYZ - SEA
Nonstop5h 22mAlaska Airlines
Deal found 6/1$467
Fri 8/97:00 amSEA - YYZ
Nonstop4h 30mAlaska Airlines
Fri 8/233:40 pmYYZ - SEA
Nonstop5h 22mAlaska Airlines
Deal found 6/1$486
Tue 6/187:00 amSEA - YYZ
Nonstop4h 30mAlaska Airlines
Tue 6/253:40 pmYYZ - SEA
Nonstop5h 20mAlaska Airlines
Deal found 6/1$490

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 2,810,401 searches. Data last updated June 2, 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.
Mon 6/109:49 pmSEA - YYZ
1 stop29h 53mMultiple Airlines
Wed 6/128:00 pmYYZ - SEA
1 stop29h 05mMultiple Airlines
Deal found 6/1$248
Mon 6/109:49 pmSEA - YYZ
1 stop21h 58mMultiple Airlines
Wed 6/198:00 pmYYZ - SEA
1 stop29h 05mMultiple Airlines
Deal found 5/31$264
Mon 6/109:49 pmSEA - YYZ
1 stop29h 53mMultiple Airlines
Thu 6/138:20 pmYYZ - SEA
1 stop15h 17mMultiple Airlines
Deal found 6/1$271
Mon 6/109:49 pmSEA - YYZ
1 stop21h 58mMultiple Airlines
Thu 6/208:20 pmYYZ - SEA
1 stop15h 17mMultiple Airlines
Deal found 5/31$277
Mon 6/109:49 pmSEA - YYZ
1 stop21h 58mMultiple Airlines
Mon 6/178:00 pmYYZ - SEA
1 stop15h 59mMultiple Airlines
Deal found 5/31$278
Wed 6/129:28 amSEA - YYZ
1 stop18h 14mMultiple Airlines
Tue 6/189:35 amYYZ - SEA
1 stop14h 16mMultiple Airlines
Deal found 5/31$282
Wed 6/129:28 amSEA - YYZ
1 stop18h 14mMultiple Airlines
Wed 6/198:00 pmYYZ - SEA
1 stop15h 32mMultiple Airlines
Deal found 5/31$286
Wed 6/129:28 amSEA - YYZ
1 stop18h 14mMultiple Airlines
Thu 6/208:20 pmYYZ - SEA
1 stop15h 17mMultiple Airlines
Deal found 5/31$295
Wed 6/129:28 amSEA - YYZ
1 stop18h 14mMultiple Airlines
Mon 6/178:00 pmYYZ - SEA
1 stop15h 59mMultiple Airlines
Deal found 5/31$296

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 2,810,401 searches. Data last updated June 2, 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.
Mon 6/109:49 pmSEA - YYZ
1 stop29h 53mMultiple Airlines
Deal found 6/1$105
Mon 6/109:49 pmSEA - YYZ
1 stop29h 53mMultiple Airlines
Deal found 6/1$106
Fri 6/2110:03 pmSEA - YYZ
1 stop29h 32mMultiple Airlines
Deal found 6/1$122
Mon 7/89:49 pmSEA - YYZ
1 stop29h 46mMultiple Airlines
Deal found 6/1$135
Wed 7/245:15 pmSEA - YYZ
2 stops21h 17mMultiple Airlines
Deal found 6/1$139
Wed 7/105:15 pmSEA - YYZ
2 stops21h 17mMultiple Airlines
Deal found 6/1$140
Wed 7/105:15 pmSEA - YTZ
2 stops21h 56mMultiple Airlines
Deal found 6/1$140
Thu 9/55:00 pmSEA - YYZ
2 stops21h 56mMultiple Airlines
Deal found 6/1$141
Thu 9/55:00 pmSEA - YTZ
2 stops24h 01mMultiple Airlines
Deal found 6/1$143

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 2,810,401 searches. Data last updated June 2, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$281 - $487

Route

Depart

Return

Price

Seattle/Tacoma IntlToronto Pearson Intl

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Tue 8/27

1 stop23h 10m

Toronto Pearson Intl

Tue 9/10

1 stop9h 41m

$281

Seattle/Tacoma IntlToronto Pearson Intl

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Wed 6/12

1 stop18h 14m

Toronto Pearson Intl

Tue 6/18

1 stop14h 16m

$282

Seattle/Tacoma IntlToronto Pearson Intl

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Wed 6/12

1 stop18h 14m

Toronto Pearson Intl

Wed 6/19

1 stop15h 32m

$286

Seattle/Tacoma IntlToronto Kitchener-Waterloo

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Wed 8/21

1 stop8h 02m

Toronto Kitchener-Waterloo

Wed 8/28

1 stop9h 41m

$338

Seattle/Tacoma IntlToronto Pearson Intl

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Wed 9/18

Nonstop4h 30m

Toronto Pearson Intl

Thu 9/26

Nonstop5h 22m

$406

Seattle/Tacoma IntlToronto Pearson Intl

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Wed 9/18

Nonstop4h 33m

Toronto Pearson Intl

Thu 9/26

1 stop7h 25m

$411

Seattle/Tacoma IntlMontreal Pierre Elliott Trudeau Intl

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Thu 8/1

1 stop7h 46m

Montreal Pierre Elliott Trudeau Intl

Mon 8/5

1 stop27h 36m

$429

Seattle/Tacoma IntlToronto Pearson Intl

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Wed 11/13

1 stop8h 17m

Toronto Pearson Intl

Fri 11/15

2 stops22h 45m

$431

Seattle/Tacoma IntlToronto Pearson Intl

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Tue 9/17

1 stop8h 01m

Toronto Pearson Intl

Thu 9/26

1 stop13h 33m

$487

Flights are sorted by cheapest first

Deals found on 6/1

No data available for this route at this time. Please check back soon.

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.

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 June 2, 2024.
Read through reviews of airlines operating flights from Seattle to Ontario, such as Alaska Airlines, Air Canada and United Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,198 reviews
Check prices

Comfort

7.9

Entertainment

7.3

Overall

8.1

Boarding

8.2

Crew

8.6

Food

7.3

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

Alaska Airlines
8.1
Very good
9,198 reviews
Alaska Airlines
8.1
Very good
9,198 reviews
Check prices

Comfort

7.9

Entertainment

7.3

Overall

8.1

Boarding

8.2

Crew

8.6

Food

7.3

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

Delta
8.0
Very good
10,410 reviews
Alaska Airlines
8.1
Very good
9,198 reviews
Check prices

Comfort

7.9

Entertainment

7.3

Overall

8.1

Boarding

8.2

Crew

8.6

Food

7.3

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

WestJet
7.5
Good
2,861 reviews
Alaska Airlines
8.1
Very good
9,198 reviews
Check prices

Comfort

7.9

Entertainment

7.3

Overall

8.1

Boarding

8.2

Crew

8.6

Food

7.3

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

United Airlines
7.4
Good
10,755 reviews
Alaska Airlines
8.1
Very good
9,198 reviews
Check prices

Comfort

7.9

Entertainment

7.3

Overall

8.1

Boarding

8.2

Crew

8.6

Food

7.3

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

American Airlines
7.3
Good
14,260 reviews
Alaska Airlines
8.1
Very good
9,198 reviews
Check prices

Comfort

7.9

Entertainment

7.3

Overall

8.1

Boarding

8.2

Crew

8.6

Food

7.3

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

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 $281, but on average you can expect to pay $318.

  • Are there nonstop flights from Seattle to Region of Ontario for under $400 on Cheapflights?

    Cheapflights has at least 20 direct flights from Seattle to Region of Ontario under $400. A good price for a nonstop flight from Seattle to Region of Ontario is less than $495.

  • Are there last-minute flights available from Seattle to Region of Ontario for under $300?

    There are currently 20+ open flights from Seattle to Region of Ontario within the next 7 days for less than $300.

  • 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 $166. Alaska Airlines flights start at $169 while deals on Air Canada start at $170 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 (82%), Air Canada (68%) and United Airlines (64%).

  • 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 $1,265, our data indicates the cheapest price to be $134. The most popular route (Seattle/Tacoma Intl - Toronto Pearson Intl), is priced around $264.

  • 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), Hamilton Airport (YHM), Toronto Island Airport (YTZ), 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 6/1.

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Seattle to Region of Ontario (average of $237). Flying from Seattle to Region of Ontario 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 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 2,810,401 searches. Data last updated June 2, 2024.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$202Average$519FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Air CanadaCheapest$218Average$642FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest$252Average$701FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapest$461Average$650FlexibilityNo cancel feeOn-time60%
Search WestJet flights
American AirlinesCheapest$465Average$617FlexibilityNo cancel feeOn-time71%
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DeltaCheapest$472Average$610FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
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Search flights from Seattle to Ontario by cabin class

Find flights from Seattle to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Hourly flight availability from Seattle to Ontario

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 June 2, 2024.
30%of flight departuresEarly morningMidnight to 6 am
33%of flight departuresMorning6 am to noon
0%of flight departuresAfternoonNoon to 6 pm
37%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Seattle to Ontario?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Ontario from Seattle today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Seattle to Ontario?

Cheapflights helps you find that perfect flight to Ontario from Seattle by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Seattle to Ontario with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Seattle to Ontario, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Seattle to Ontario become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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