Cheap flights from Toronto Region of Waterloo Intl Airport to Seattle from C$ 113
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Toronto Region of Waterloo Intl Airport to Seattle departing on 17/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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WestJet flights from Toronto Region of Waterloo Intl Airport to Seattle
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How to get the cheapest flight ticket from Toronto Region of Waterloo Intl Airport to Seattle
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest day to depart on your flight to Seattle?
Our data shows that Thursday is the least expensive day to fly to Seattle. Tickets to fly out on this day can be as low as C$ 569. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around C$ 726. These prices are subject to change though, so be sure to set up a Price Alert for flights to Seattle.
What is the cheapest time of day to depart on your flight to Seattle?
Our most recent data shows that the best time of day to fly to Seattle is in the evening. Flights from Toronto Region of Waterloo Intl Airport to Seattle during this time can be as low as C$ 545. Flights in the morning are often more expensive with an average ticket price of C$ 776.
When to book flights from Toronto Region of Waterloo Intl Airport to Seattle
Cheap Toronto Region of Waterloo Intl Airport to Seattle (YKF to SEA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Toronto Region of Waterloo Intl Airport to Seattle
How far is Toronto Region of Waterloo Intl to Seattle/Tacoma Intl by plane?
A flight from Toronto Region of Waterloo Intl to Seattle/Tacoma Intl will travel around 3257.4 km. By plane, this route typically takes 9h 56m.
When did momondo last update prices for flights from Toronto Region of Waterloo Intl Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Toronto Region of Waterloo Intl Airport to Seattle/Tacoma Intl Airport are updated daily.
How many operators does momondo search for flights from Toronto Region of Waterloo Intl Airport to Seattle/Tacoma Intl Airport?
As of April 2025, there are 2 operators available to choose from for flights from Toronto Region of Waterloo Intl Airport to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from Toronto Region of Waterloo Intl Airport to Seattle/Tacoma Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Toronto Region of Waterloo Intl Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Toronto Region of Waterloo Intl Airport to Seattle?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Toronto Region of Waterloo Intl Airport to Seattle is WestJet (76% of total bookings). The next most popular airline is Air Canada (24%).
Best airlines flying from Toronto Region of Waterloo Intl Airport to Seattle
Compare and see reviews for airlines that fly from Toronto Region of Waterloo Intl Airport to Seattle with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom C$ 191 | Free Cancellation | Rating 7.2 2,809 reviews | |||
| PriceFrom C$ 380 | Free Cancellation | Rating 7.0 9,142 reviews |
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Why should I use momondo to find a flight deal from Toronto to Seattle?
It is quick and easy to find Toronto to Seattle flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Seattle that suits you.
Can I find flights from Toronto to Seattle with flexible booking policies on momondo?
Yes. All flights to Seattle from Toronto on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Toronto to Seattle?
Once all potential Toronto to Seattle flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Toronto to Seattle right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Toronto to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.