$168 Cheap flight deals from Seattle (SEA) to Southwestern Ontario (YTO)

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This Weekend's Flight Deals from Seattle to Southwestern Ontario

This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Jul 4 - Fri, Jul 10
SEA
Seattle - Tacoma Intl.
YHM
John C. Munro Hamilton Intl.
$795 Roundtrip, found 1 day ago
$795
Roundtrip
found 1 day ago
Select WestJet flight, departing Sat, Jul 4 from Seattle - Tacoma Intl. to John C. Munro Hamilton Intl., returning Fri, Jul 10, priced at $795 found 1 day ago
Fri, Jul 3 - Wed, Jul 8
SEA
Seattle - Tacoma Intl.
YTZ
Billy Bishop Toronto City
$851 Roundtrip, found 2 days ago
$851
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Fri, Jul 3 from Seattle - Tacoma Intl. to Billy Bishop Toronto City, returning Wed, Jul 8, priced at $851 found 2 days ago
Sat, Jul 4 - Mon, Jul 20
SEA
Seattle - Tacoma Intl.
YXU
London Intl.
$966 Roundtrip, found 3 days ago
$966
Roundtrip
found 3 days ago
Select WestJet flight, departing Sat, Jul 4 from Seattle - Tacoma Intl. to London Intl., returning Mon, Jul 20, priced at $966 found 3 days ago
Sat, Jul 4 - Sun, Jul 5
SEA
Seattle - Tacoma Intl.
YYZ
Pearson Intl.
$1,034 Roundtrip, just found
$1,034
Roundtrip
just found
Select Alaska Airlines flight, departing Sat, Jul 4 from Seattle - Tacoma Intl. to Pearson Intl., returning Sun, Jul 5, priced at $1,034 just found

Airfares from $168 One Way, $385 Round Trip from Seattle to Southwestern Ontario

Prices starting at $385 for return flights and $168 for one-way flights to Southwestern Ontario were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Oct 22 - Tue, Oct 27
SEA
Seattle
YYZ
Toronto
$385 Roundtrip, found 4 hours ago
$385
Roundtrip
found 4 hours ago
Select Air Canada flight, departing Thu, Oct 22 from Seattle to Toronto, returning Tue, Oct 27, priced at $385 found 4 hours ago
Mon, Oct 26 - Sun, Nov 1
SEA
Seattle
YYZ
Toronto
$399 Roundtrip, found 4 hours ago
$399
Roundtrip
found 4 hours ago
Select WestJet flight, departing Mon, Oct 26 from Seattle to Toronto, returning Sun, Nov 1, priced at $399 found 4 hours ago
Sat, Jan 30 - Mon, Feb 15
SEA
Seattle
YYZ
Toronto
$401 Roundtrip, found 6 days ago
$401
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Sat, Jan 30 from Seattle to Toronto, returning Mon, Feb 15, priced at $401 found 6 days ago
Tue, Sep 29 - Wed, Oct 28
SEA
Seattle
YYZ
Toronto
$416 Roundtrip, found 6 days ago
$416
Roundtrip
found 6 days ago
Select United flight, departing Tue, Sep 29 from Seattle to Toronto, returning Wed, Oct 28, priced at $416 found 6 days ago
Tue, Sep 29 - Wed, Oct 28
SEA
Seattle
YYZ
Toronto
$426 Roundtrip, found 6 days ago
$426
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, Sep 29 from Seattle to Toronto, returning Wed, Oct 28, priced at $426 found 6 days ago

Southwestern Ontario economy flight packages

Price found within the past 48 hours. Click for updated prices.
Hotel Riu Plaza Toronto
4.0-star property

Hotel Riu Plaza Toronto

9.4/10 Exceptional! (3,788 reviews)

Aug 7 - Aug 9

2 night stay

Seattle (SEA) to Toronto (YYZ)

WestJet • Non-stop • Coach

Toronto (YYZ) to Seattle (SEA)

Air Canada • Non-stop • Coach
Price was $969, price is now $765 per person
$765
per person
found 1 day ago
We enjoyed our stay at the RUI in downtown Toronto. The location was great. The property appeared newly renovated and fresh. I loved the decor. All of the staff were so friendly inviting and helpful. The breakfast buffet that came with our room was amazing! The variety offered was great hot foods, pastries,fruits,salad cheeses meats and yogurts. Something for everyone and all cultural preferences. There is an area at the hotel entrance to purchase cocktails and bar snacks with lobby seating but not an actual cocktail lounge. The fitness room was well appointed. I highly recommend this hotel.

Reviewed on Jun 1, 2026

1 Hotel Toronto
5.0-star property

1 Hotel Toronto

9.6/10 Exceptional! (748 reviews)

Aug 13 - Aug 15

2 night stay

Seattle (SEA) to Toronto (YYZ)

WestJet • Non-stop • Coach

Toronto (YYZ) to Seattle (SEA)

Air Canada • Non-stop • Coach
Price was $1,446, price is now $1,083 per person
$1,083
per person
found 4 hours ago
Very unique, warm and cozy décor. Very pleasant and accommodating staff. Enjoyed ourselves immensely even though it was for business.

Reviewed on Oct 31, 2021

Nine Vines Hotel
3.0-star property

Nine Vines Hotel

9.6/10 Exceptional! (105 reviews)

Aug 16 - Aug 20

4 night stay

Seattle (SEA) to Toronto (YYZ)

Air Canada • Roundtrip • Coach
Price was $1,488, price is now $1,234 per person
$1,234
per person
found 21 hours ago
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More About Flying To Southwestern Ontario from Seattle

Route Information for Flights from Seattle to Southwestern Ontario

Origin Airport IATA Code
SEA
Destination Airport IATA Code
YTO
Distance
Direct Flight Airlines
Earliest Flight Arrival
Latest Flight Arrival

Seattle to Southwestern Ontario

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You will have no problems finding budget flights from Seattle to Southwestern Ontario on Orbitz.com. If your travel plans are flexible, you can search for fares three days before and after a specific date to find the best price.

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Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.