Cheap flights from Ontario to Seattle from C$ 211
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 14/5. 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.
How far in advance should I book a flight from Region of Ontario to Seattle?
To save up to 97% on this flight, we recommend booking at least 60 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Region of Ontario to Seattle from C$ 731 1-2 weeks out and tickets from C$ 1,043 for flights departing within the next 72 hours.
What is the cheapest month to fly from Region of Ontario to Seattle?
Our data shows that January tends to be the cheapest month to fly to Seattle from Region of Ontario. Users have commonly found prices around C$ 659 for the month, but tickets can be as low as C$ 432. Due to multiple factors, prepare for potentially higher prices in December.
When is the cheapest time to fly from Region of Ontario to Seattle (ON - SEA)?
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Region of Ontario to Seattle as you normally would.
Cheap Alaska Airlines flights from Ontario to Seattle
Explore cheap flight options specifically provided by Alaska Airlines for the route between Ontario and Seattle. 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 508,335 searches. Data last updated 24 April 2024.
Find some of the cheapest Alaska Airlines flights travelling from Ontario to Seattle. Make sure to check back often as deals are often changing.
Cheap Delta flights from Ontario to Seattle
Explore cheap flight options specifically provided by Delta for the route between Ontario and Seattle. 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 508,335 searches. Data last updated 24 April 2024.
Take a gander at the lowest prices we've found on Delta flights from Ontario to Seattle. Make sure to examine the flight information before completing your reservation.
Cheap Ontario to Seattle flights in April & May 2024
Find cheap flight options from Ontario to Seattle specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 508,335 searches. Prices were last updated on 24 April 2024.
These are some of the best deals we've found on flights to Seattle in 2024 at this time. If these deals don't appeal to you, be sure to come back soon for more options.
Ontario to Seattle 2024 flight deals
Discover exclusive flight deals for travel between Ontario and Seattle in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 508,335 searches. Data last updated 24 April 2024.
These are some of the best deals we've found on flights to Seattle in 2024 at this time. If these deals don't appeal to you, be sure to come back soon for more options.
Direct flights to Seattle from Ontario
Discover non-stop flight options from Ontario to Seattle. 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 508,335 searches. Data last updated 24 April 2024.
For a shorter flight, select one of these non-stop flights from Ontario to Seattle. Those looking to potentially save on 1 or 2-stop flights from Ontario to Seattle should utilize the search form at the top of the page.
Ontario to Seattle flights leaving soon
Find last-minute flight options from Ontario to Seattle 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 508,335 searches. Data last updated 24 April 2024.
Book one of these great deals on flights from Ontario to Seattle. It's wise to confirm all flight details are correct before booking.
One-way flights to Seattle from Ontario
Search for one-way flight options from Ontario to Seattle. 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 508,335 searches. Data last updated 24 April 2024.
Some of the best available deals we've found on one-way flights from Ontario to Seattle. Users in need of a round-trip flight from Ontario to Seattle instead should update the search form at the top of page.
Find flights from Ontario to Seattle within your budget
Customize your flight search to find flights from Ontario to Seattle 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 508,335 searches. Data last updated 24 April 2024.
Fly from
Fly to
Budget
C$ 361 - C$ 564
Route
Depart
Return
Price
Toronto Pearson IntlSeattle/Tacoma Intl
YYZ - SEA
YYZSEA
Toronto Pearson Intl
Tue 21/5
1 stop15h 25m
Seattle/Tacoma Intl
Tue 11/6
1 stop18h 07m
Toronto Pearson IntlSeattle/Tacoma Intl
YYZ - SEA
YYZSEA
Toronto Pearson Intl
Tue 21/5
1 stop15h 45m
Seattle/Tacoma Intl
Tue 28/5
1 stop18h 00m
Toronto Pearson IntlSeattle/Tacoma Intl
YYZ - SEA
YYZSEA
Toronto Pearson Intl
Tue 21/5
1 stop15h 45m
Seattle/Tacoma Intl
Tue 11/6
1 stop18h 07m
Toronto Kitchener-WaterlooSeattle/Tacoma Intl
YKF - SEA
YKFSEA
Toronto Kitchener-Waterloo
Thu 18/7
1 stop9h 41m
Seattle/Tacoma Intl
Mon 22/7
1 stop7h 23m
Toronto Pearson IntlSeattle/Tacoma Intl
YYZ - SEA
YYZSEA
Toronto Pearson Intl
Thu 18/7
1 stop8h 15m
Seattle/Tacoma Intl
Mon 22/7
1 stop8h 16m
Toronto Pearson IntlSeattle/Tacoma Intl
YYZ - SEA
YYZSEA
Toronto Pearson Intl
Thu 16/5
1 stop14h 10m
Seattle/Tacoma Intl
Sat 18/5
1 stop8h 27m
Toronto Pearson IntlSeattle/Tacoma Intl
YYZ - SEA
YYZSEA
Toronto Pearson Intl
Tue 21/5
Nonstop5h 15m
Seattle/Tacoma Intl
Tue 28/5
Nonstop4h 40m
Toronto Pearson IntlSeattle/Tacoma Intl
YYZ - SEA
YYZSEA
Toronto Pearson Intl
Tue 21/5
1 stop7h 26m
Seattle/Tacoma Intl
Tue 28/5
1 stop11h 47m
Toronto Pearson IntlSeattle/Tacoma Intl
YYZ - SEA
YYZSEA
Toronto Pearson Intl
Wed 22/5
Nonstop5h 18m
Seattle/Tacoma Intl
Wed 22/5
1 stop15h 01m
No data available for this route at this time. Please check back soon.
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated 24 April 2024.
Read reviews from past customers who have flown Alaska Airlines, Delta and United Airlines from Ontario to Seattle. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
Food
Comfort
Boarding
Crew
Entertainment
Reviews
There were no major issues. A bit of delay but it was understandable. It was a good experience otherwise.
Overall
Food
Comfort
Boarding
Crew
Entertainment
Reviews
There were no major issues. A bit of delay but it was understandable. It was a good experience otherwise.
Overall
Food
Comfort
Boarding
Crew
Entertainment
Reviews
There were no major issues. A bit of delay but it was understandable. It was a good experience otherwise.
Overall
Food
Comfort
Boarding
Crew
Entertainment
Reviews
There were no major issues. A bit of delay but it was understandable. It was a good experience otherwise.
Overall
Food
Comfort
Boarding
Crew
Entertainment
Reviews
There were no major issues. A bit of delay but it was understandable. It was a good experience otherwise.
Overall
Food
Comfort
Boarding
Crew
Entertainment
Reviews
There were no major issues. A bit of delay but it was understandable. It was a good experience otherwise.
Related info for your journey
Find useful and relevant information for your journey from Ontario to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Ontario to SeattleSee prices for flight routes from nearby airports that may be better suited for you.
See prices for flight routes from nearby airports that may be better suited for you.
Top 7 airlines flying from Ontario to Seattle
Discover the top 7 airlines that operate flights from Ontario to Seattle. 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 508,335 searches. Data last updated 24 April 2024.
Search flights from Ontario to Seattle by cabin class
Find flights from Ontario to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Hourly flight availability from Ontario to Seattle
Find hourly flight availability from Ontario to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 24 April 2024.
| 0%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 0%of flight departures | Morning6 am to noon |
| 100%of flight departures | AfternoonNoon to 6 pm |
| 0%of flight departures | Evening6 pm to midnight |
Book a flight to one of these trending destinations
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Why should you use Cheapflights to find cheap flight tickets from Ontario to Seattle?
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Can Cheapflights find flights from Ontario to Seattle with no change fees?
Need flexible booking options for your flight to Seattle from Ontario? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.
Can Cheapflights notify me if prices for flights from Ontario to Seattle become cheaper?
Of course! You can now track prices for flights from Ontario to Seattle and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.