$109 Cheap flight deals from Seattle (SEA) to Southwestern Ontario (YTO)
Earn rewards on top of your airline miles with Orbitz Rewards
Many airlines offer flexible change policies
Sign up to receive text alerts about your trip
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.
Airfares from $109 One Way, $258 Round Trip from Seattle to Southwestern Ontario
Prices starting at $258 for return flights and $109 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.
Southwestern Ontario economy flight packages
One King West Hotel & Residence
May 22 - May 24
Seattle (SEA) to Toronto (YYZ)
Toronto (YYZ) to Seattle (SEA)
Reviewed on Apr 20, 2025
Town Inn Suites Hotel
May 22 - May 29
Seattle (SEA) to Toronto (YYZ)
Toronto (YYZ) to Seattle (SEA)
Reviewed on Jan 3, 2026
DoubleTree by Hilton Hotel Toronto Downtown
May 22 - May 29
Seattle (SEA) to Toronto (YYZ)
Toronto (YYZ) to Seattle (SEA)
Reviewed on Sep 17, 2025
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
Orbitz assures that you will receive cheap air fares on flights from Seattle to Southwestern Ontario and special deals that give you guaranteed low prices on hotels, cruises, car rentals, and anything else you need on your trip.
Free Orbitz mobile app for your Android or iPad
Get the latest Orbitz app for your smartphone and tablet to book low cost cars, hotels, and Seattle to Southwestern Ontario flights. Our cutting-edge mobile tools let you view your trip itinerary on your mobile device anytime you need it. You can research great deals on highly rated hotels near you with the app, which uses your smartphone’s GPS, and book the one you like with just a few taps.
Orbitz mobile site for even more convenience
Use your mobile Web browser to get savings on flights from Seattle to Southwestern Ontario. Our mobile site, m.orbitz.com, offers the same powerful search and other capabilities you expect from our regular site. Retrieve and share your itinerary for your from Seattle to Southwestern Ontario flights with friends, family members, and colleagues, and browse photo galleries and user reviews of hotels to find the one you like.
Free alerts on flight and travel plans
Receive free, real-time updates on your low fare flights from Seattle to Southwestern Ontario via your mobile phone or email inbox. Stay on top of delays, gate charges, and other event notifications so you can make other travel arrangements if you need to.
Low fares on Seattle to Southwestern Ontario flights
Forget about annoying booking fees and get cheap air ticket sales as you make your reservations online with Orbitz. Follow Orbitz on Twitter and Facebook and get alerted about travel coupons and promo codes for Seattle to Southwestern Ontario flights.
Flights from Seattle
- Seattle to Los Angeles
- Seattle to New York
- Seattle to San Francisco
- Seattle to Orlando
- Seattle to Chicago
- Seattle to Dallas
- Seattle to Bangkok
- Seattle to Atlanta
- Seattle to Houston
- Seattle to Sacramento
- Seattle to London
- Seattle to Oakland
- Seattle to Paris
- Seattle to Washington
- Seattle to Fort Lauderdale
- Seattle to Santa Ana
- Seattle to Beijing
- Seattle to Bentonville - Fayetteville
- Seattle to Buenos Aires
- Seattle to Bucharest
More Destinations
- Flights from Atlanta to Kitchener
- Flights from Baltimore to Kitchener
- Flights from Boston to Kitchener
- Flights from Charlotte to Kitchener
- Flights from Chicago to Kitchener
- Flights from Cleveland to Kitchener
- Flights from Dallas to Kitchener
- Flights from Detroit to Kitchener
- Flights from New York to Kitchener
- Flights from Philadelphia to Kitchener
- Flights from Phoenix to Kitchener
- Flights from San Francisco to Kitchener
- Flights from Seattle to Kitchener
- Flights from St. Louis to Kitchener
- Flights from Toronto to Kitchener
- Flights from Vancouver to Kitchener
- Flights from Washington to Kitchener
- Flights from Québec City to Kitchener
- Flights from Regina to Kitchener
- Flights from Medicine Hat to Kitchener
- Flights from Des Moines to Kitchener
- Flights from Pittsburgh to Kitchener
- Flights from Fort Lauderdale to Kitchener
- Flights from Newark to Kitchener
- Flights from Syracuse to Kitchener
- Flights from Tulsa to Kitchener
- Flights from Tampa to Kitchener
- Flights from Louisville to Kitchener
- Flights from Deer Lake - Corner Brook to Kitchener
- Flights from Los Angeles to London
- Flights from Raleigh to London
- Flights from Cancun to London
- Flights from Monterrey to London
- Flights from Fort Wayne to London
- Flights from Chattanooga to London
- Flights from Bangkok to St. Mary's
- Flights from Bogotá to St. Mary's
- Flights from Brussels to St. Mary's
- Flights from Calgary to St. Mary's
- Flights from Los Angeles to St. Mary's
- Flights from New Orleans to St. Mary's
- Flights from Ottawa to St. Mary's
- Flights from Mazatlán to St. Mary's
- Flights from Montego Bay to St. Mary's
- Flights from Palm Springs to St. Mary's
- Flights from Omaha to St. Mary's
- Flights from Kamloops to St. Mary's
- Flights from Pittsburgh to St. Mary's
- Flights from Tulsa to St. Mary's
- Flights from Freeport to St. Mary's
- Flights from Albuquerque to St. Mary's
- Flights from Norfolk - Virginia Beach to St. Mary's
- Flights from Binghamton to St. Mary's
- Flights from Incheon to St. Mary's
- Flights from Recife to St. Mary's
- Flights from Grande Prairie to St. Mary's
- Flights from Baku to St. Mary's
- Flights from College Station to St. Mary's
- Flights from Boston to Brampton
- Flights from Charlotte to Brampton
- Flights from Columbus to Brampton
- Flights from Indianapolis to Brampton
- Flights from Las Vegas to Brampton
- Flights from Lima to Brampton
- Flights from Los Angeles to Brampton
- Flights from Manila to Brampton
- Flights from Mexico City to Brampton
- Flights from Miami to Brampton
- Flights from Nashville to Brampton
- Flights from New York to Brampton
- Flights from Orlando to Brampton
- Flights from Ottawa to Brampton
- Flights from Phoenix to Brampton
- Flights from San Francisco to Brampton
- Flights from Vancouver to Brampton
- Flights from Washington to Brampton
- Flights from Brisbane to Brampton
- Flights from Delhi to Brampton
- Flights from Edmonton to Brampton
- Flights from Providence to Brampton
- Flights from Sacramento to Brampton
- Flights from St. John's to Brampton
- Flights from Accra to Brampton
- Flights from Victoria to Brampton
- Flights from Des Moines to Brampton
- Flights from Halifax to Brampton
- Flights from Greensboro to Brampton
- Flights from Tampa to Brampton
- Flights from San José to Brampton
- Flights from Cape Town to Brampton
- Flights from Hyderabad to Brampton
- Flights from Kogalym to Guelph
- Flights from Bloemfontein to Guelph
- Flights from Gannavaram to Guelph
- Flights from Halifax to Guelph
- Flights from Jacksonville to Guelph
- Flights from Lansing to Guelph
- Flights from Isla de Utila to Guelph
- Flights from Stuttgart to Guelph
- Flights from Nyland to Brantford
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.