Menu

Cheap flights from Seattle (SEA) to Ontario (ON)

Know your dates, get live prices in seconds:

From
To
Depart
–
Return
Any month
Compare vs. Cheapflights |
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
Add another flight clear all

We work with more than 300 partners to bring you better travel deals

Cheap flights from Seattle to Ontario

Cheap flights from Seattle to Ontario in January 2020

The best prices found for SEA to Ontario flights for January
28 Jan - 7 Feb
$328pp
SEA
Seattle/Tacoma Intl
American Airlines
   
2 STOPS
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
American Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
29 Jan - 6 Feb
$419pp
SEA
Seattle/Tacoma Intl
Delta
 
1 STOP
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
Delta
 
1 STOP
SEA
Seattle/Tacoma Intl

Seattle to Ontario 2020 flight deals

Cheap flights to Ontario from Seattle found for this year
5 Mar - 10 Mar
$311pp
SEA
Seattle/Tacoma Intl
WestJet
   
2 STOPS
YOW
Ottawa
YOW
Ottawa
WestJet
   
2 STOPS
SEA
Seattle/Tacoma Intl
28 Apr - 5 May
$320pp
SEA
Seattle/Tacoma Intl
American Airlines
   
2 STOPS
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
American Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
4 Aug - 11 Aug
$326pp
SEA
Seattle/Tacoma Intl
WestJet
   
2 STOPS
YOW
Ottawa
YOW
Ottawa
WestJet
   
2 STOPS
SEA
Seattle/Tacoma Intl

Last minute flights from Seattle to Ontario

Late deals on round-trip flights to Ontario from Seattle, departing today and this week
27 Jan - 28 Jan
$328pp
SEA
Seattle/Tacoma Intl
WestJet
   
2 STOPS
YOW
Ottawa
YOW
Ottawa
WestJet
   
2 STOPS
SEA
Seattle/Tacoma Intl
27 Jan - 6 Feb
$371pp
SEA
Seattle/Tacoma Intl
American Airlines
   
2 STOPS
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
American Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
24 Jan - 31 Jan
$388pp
SEA
Seattle/Tacoma Intl
American Airlines
 
1 STOP
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
American Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl

Departure points for flights from Seattle to Ontario

Show more

Destination information for Ontario

Things to know before you go. Useful info for your trip from Seattle to Ontario
Today's exchange rate
$1.00 = C$ 1.31

Airports servicing Seattle

Seattle King County/Boeing (BFI)
Seattle Lake Union Spb (LKE)
Redmond (SEA)

Airports servicing

Chatham-Kent (XCM)
Fort Frances (YAG)
Ste. Marie Marie (YAM)
Attawapiskat (YAT)
Fort Albany (YFA)
Kingston, Ontario (YGK)

Popular flight searches

Check out other popular destinations found by fellow travelers

Related info for your journey

Useful info, stats and facts about Seattle to Ontario flights.

Flight FAQs

From Seattle to Ontario

What days are nonstop flights available from Seattle to Ontario?

Days when nonstop flights are available for this flight are: Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday.

How popular is this flight route?

This flight path from Seattle to Ontario was viewed by 17 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

The most popular airlines flying from Seattle to Ontario are Interjet, American Airlines and Delta. Something to consider prior to booking your flight.

What are the most popular routes from Seattle to Ontario?

The most popular route from Seattle to Ontario is Seattle/Tacoma Intl - Toronto Pearson Intl. You may also consider Seattle/Tacoma Intl - Toronto Island or Seattle/Tacoma Intl - Timmins.

What are the cheapest Flights from Seattle to Ontario?

The cheapest flight price from Seattle to Ontario is $157. On average you can expect to pay $468. The most popular route, (Seattle/Tacoma Intl - Toronto Pearson Intl), can usually be booked for $402.

What are the most reliable airlines from Seattle to Ontario?

The top 3 most reliable airlines when flying from Seattle to Ontario are Turkish Airlines (82%), Air Canada (81%) and United Airlines (81%).

Related searches

Flights to Ontario from Seattle
Flights to Seattle Flights to Ontario Flights from Seattle

Rent a Car

Car Rentals in Ontario Car Rentals at Lester B. Pearson Intl Car Rentals at Macdonald-Cartier Intl Car Rentals at Thunder Bay International