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Cheap flights from Seattle to Toronto Region of Waterloo Intl Airport from C$ 500

SEA — YKF
23 Nov — 30 Nov1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Region of Waterloo Intl

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to Region of Waterloo Intl

Sun 22/115:48 p.m. -
1 stop18h 57m
Sat 28/117:00 p.m. -
1 stop16h 57m
Deal found 23/10C$ 1,024
Fri 4/122:30 p.m. -
3 stops24h 45m
Fri 11/124:30 p.m. -
2 stops24h 10m
Deal found 20/10C$ 1,410
Fri 23/1010:50 a.m. -
2 stops25h 10m
Sat 31/107:00 p.m. -
2 stops18h 32m
Deal found 21/10C$ 1,823

Find flight deals from Seattle to Region of Waterloo Intl

Round-trip from

C$ 1,024

One-way from

C$ 500

Popular in

July

Cheapest in

January

Average price

C$ 827
22/11-28/11
  • 22/11-28/11
  • 2 total stops
  • 35h 54m total
  • Seattle to Toronto
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3/1-31/12
  • 3/1-31/12
  • 1 total stop
  • 18h 53m total
  • Seattle to Toronto
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Highest demand for flights based on searches. 21% potential increase in price (C$ 244 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease (C$ 41 potential savings vs. average RT price).
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Average for round-trip flights in October 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Seattle to Toronto Region of Waterloo Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

SeattleToronto

SEA Seattle/Tacoma Intl - YKF Toronto Region of Waterloo Intl

SEAYKF

Seattle/Tacoma Intl

Sun 3/1

5:52 p.m.-3:45 p.m.

1 stop18h 53m

Toronto Region of Waterloo Intl

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 500

SeattleToronto

SEA Seattle/Tacoma Intl - YKF Toronto Region of Waterloo Intl

SEAYKF

Seattle/Tacoma Intl

Thu 5/11

5:38 p.m.-3:45 p.m.

2 stops19h 07m

Toronto Region of Waterloo Intl

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 979

SeattleToronto

SEA Seattle/Tacoma Intl - YKF Toronto Region of Waterloo Intl

SEAYKF

Seattle/Tacoma Intl

Fri 4/12

2:30 p.m.-6:15 p.m.

3 stops24h 45m

Toronto Region of Waterloo Intl

Fri 11/12

4:30 p.m.-1:40 p.m.

2 stops24h 10m

C$ 1,410

SeattleToronto

SEA Seattle/Tacoma Intl - YKF Toronto Region of Waterloo Intl

SEAYKF

Seattle/Tacoma Intl

Sun 22/11

1:52 p.m.-3:45 p.m.

3 stops22h 53m

Toronto Region of Waterloo Intl

Sat 28/11

7:00 p.m.-8:45 a.m.

2 stops16h 45m

C$ 1,764

Flights are sorted by cheapest round-trip flights first.

Deals found on 24/10

Sorted by cheapest first

Best time to book a flight from Seattle to Region of Waterloo Intl

Have a flexible travel schedule? Discover the best time to fly to Region of Waterloo Intl from Seattle with our price prediction graph.
Estimated round-trip price

Related info for your journey

  • What airport do you fly from for flights from Seattle to Toronto Region of Waterloo Intl?

    Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Toronto Region of Waterloo Intl. On average, Seattle/Tacoma Intl has 0 outbound flights to Toronto Region of Waterloo Intl per day from 0 airlines. Seattle/Tacoma Intl is conveniently located just 18.4 km from Seattle’s city centre.

  • Can I find deals for flights from Seattle to Region of Waterloo Intl that include hotel bookings?

    Yes. In addition to deals on Seattle to Region of Waterloo Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Region of Waterloo Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Region of Waterloo Intl.

  • Can I find deals for business class flights from Seattle to Region of Waterloo Intl?

    Yes. Cheapflights offers flight deals from Seattle to Region of Waterloo Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near Toronto Region of Waterloo Intl Airport?

Book flights to Toronto Region of Waterloo Intl Airport if you plan to visit one of these locations
Port Elgin
Southampton
Sauble Beach

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Seattle to Region of Waterloo Intl

Seattle to Pearson Intl flights
Seattle to Hamilton flights
Portland to Pearson Intl flights
Spokane to Pearson Intl flights
Pasco to Pearson Intl flights
Bellingham to Pearson Intl flights

Fly with Cheapflights

How does Cheapflights help users find flights from Seattle to Region of Waterloo Intl?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Seattle to Region of Waterloo Intl. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Region of Waterloo Intl?

Millions of users choose and trust Cheapflights to book the best flight deals from Seattle to Region of Waterloo Intl for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Seattle to Region of Waterloo Intl with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Seattle to Region of Waterloo Intl, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Seattle to Region of Waterloo Intl become cheaper?

Yes! Start tracking prices for Seattle to Region of Waterloo Intl flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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