What is the cheapest day to fly from Seattle to Toronto Region of Waterloo Intl Airport?

Travelers seeking maximum savings on their Seattle to Toronto Region of Waterloo Intl Airport flight should consider departing on Thursday mornings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Toronto Region of Waterloo Intl Airport ranges from 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Toronto Region of Waterloo Intl Airport when rainfall is around 2.0 in.

If weather is an important factor for your trip to Toronto Region of Waterloo Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

What is the cheapest day to fly round-trip from Seattle to Toronto Region of Waterloo Intl Airport?

Wednesday flights are generally found to be more expensive for flights from Seattle to Toronto Region of Waterloo Intl Airport. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Toronto Region of Waterloo Intl Airport.

How far in advance should I book a flight from Seattle to Toronto Region of Waterloo Intl Airport?

To save on the cost of your flight from Seattle to Toronto Region of Waterloo Intl Airport, book at least 28 days before your planned departure. Booking around this time can save you about 109% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $375 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $702.

What is the cheapest month to fly from Seattle to Toronto Region of Waterloo Intl Airport?

January can be a great time to fly to Toronto Region of Waterloo Intl Airport from Seattle with a flight ticket averaging about $414. Cheapflights users have found deals in the month of January for as cheap as $128. The most expensive prices can be found in the month of June.

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

Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly out of when you book flights from Seattle to Toronto Region of Waterloo Intl. 0 airlines have flights from Seattle/Tacoma Intl to Toronto Region of Waterloo Intl on a regular basis. Booking flights from Seattle/Tacoma Intl to Toronto Region of Waterloo Intl should not be difficult; the airport handles an average of 0 outbound flights to Toronto Region of Waterloo Intl per day.

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.

$138+ Flights from Seattle to Toronto Region of Waterloo Intl Airport

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Cheap flight deals from Seattle to Region of Waterloo Intl

Round-trip from	$296 (WestJet)
One-way from	$138 (oojo)
Popular in	June
Cheapest in	January
Average price	$468

From Seattle/Tacoma Intl to Toronto Region of Waterloo Intl

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One-way flight from Seattle/Tacoma Intl to Toronto Region of Waterloo Intl

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Highest demand for flights based on searches. 13% potential increase in price ($65 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from Seattle to Region of Waterloo Intl

Cheapest flights from Seattle to Region of Waterloo Intl
Explore the most affordable flight options available from Seattle to Region of Waterloo Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2025.

Fri 7/117:35 pmSEA - YKF

1 stop26h 11mWestJet

Tue 7/156:00 amYKF - SEA

1 stop9h 58mWestJet

Deal found 6/30

$296

Mon 8/112:05 pmSEA - YKF

1 stop7h 41mMultiple Airlines

Fri 8/159:25 amYKF - SEA

2 stops14h 03mMultiple Airlines

Deal found 7/1

$378

Best flights from Seattle to Region of Waterloo Intl
Discover carefully curated flight deals from Seattle to Region of Waterloo Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 1, 2025.

Fri 7/117:35 pmSEA - YKF

1 stop26h 11mWestJet

Tue 7/156:00 amYKF - SEA

1 stop9h 58mWestJet

Deal found 6/30

$296

Tue 7/222:05 pmSEA - YKF

1 stop7h 41mMultiple Airlines

Tue 7/297:45 pmYKF - SEA

2 stops23h 40mMultiple Airlines

Deal found 7/1

$336

Last-minute flights from Seattle to Region of Waterloo Intl
Discover last-minute flight deals from Seattle to Region of Waterloo Intl. Data last updated July 1, 2025 and is based on user searches.

Thu 7/107:05 amSEA - YKF

3 stops21h 05mMultiple Airlines

Mon 7/148:25 pmYKF - SEA

2 stops19h 33mMultiple Airlines

Deal found 6/30

$515

Fri 7/117:35 pmSEA - YKF

1 stop26h 11mWestJet

Tue 7/156:00 amYKF - SEA

1 stop9h 58mWestJet

Deal found 6/30

$296

Fri 7/181:50 pmSEA - YKF

1 stop7h 56mMultiple Airlines

Sat 7/268:25 pmYKF - SEA

3 stops27h 03mMultiple Airlines

Deal found 7/1

$416

One-way flights from Seattle to Region of Waterloo Intl
Search for one-way flight options from Seattle to Region of Waterloo Intl. Find affordable one-way fares based on user searches. Data last updated July 1, 2025.

Thu 7/311:50 pmSEA - YKF

1 stop7h 56mWestJet

Deal found 6/30

$138

Sat 10/181:50 pmSEA - YKF

2 stops12h 40mMultiple Airlines

Deal found 6/30

$155

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

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Fri 7/11

7:35 pm-12:46 am

1 stop26h 11m

Toronto Region of Waterloo Intl

Tue 7/15

6:00 am-12:58 pm

1 stop9h 58m

$296

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Mon 8/11

2:05 pm-12:46 am

1 stop7h 41m

Toronto Region of Waterloo Intl

Fri 8/15

9:25 am-8:28 pm

2 stops14h 03m

$378

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Thu 7/31

1:50 pm-12:46 am

1 stop7h 56m

$138

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Sat 10/18

1:50 pm-5:30 am

2 stops12h 40m

$155

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

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

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Toronto Region of Waterloo Intl Airport

What is the cheapest time of day to fly from SEA to YKF?

One of the essential ways to save on airfare from Seattle to Toronto Region of Waterloo Intl Airport is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 30% on airfare.

Reviews of airlines servicing Region of Waterloo Intl

Read through reviews of airlines operating flights from Seattle to Toronto Region of Waterloo Intl Airport, such as WestJet. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

WestJet

7.2

Good

2,909 reviews

Reviews

1 / 20

10.0

Excellent

Sugith,Jan 2025

CUN - YYZ

On time departure. Good service on board. Comfort Plus seating was comfortable.

WestJet

7.2

Good

2,909 reviews

WestJet

7.2

Good

2,909 reviews

Reviews

1 / 20

10.0

Excellent

Sugith,Jan 2025

CUN - YYZ

On time departure. Good service on board. Comfort Plus seating was comfortable.

Related info for your journey

What airport do you fly from for flights from Seattle to Toronto Region of Waterloo Intl?
Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly out of when you book flights from Seattle to Toronto Region of Waterloo Intl. 0 airlines have flights from Seattle/Tacoma Intl to Toronto Region of Waterloo Intl on a regular basis. Booking flights from Seattle/Tacoma Intl to Toronto Region of Waterloo Intl should not be difficult; the airport handles an average of 0 outbound flights to Toronto Region of Waterloo Intl per day.
What is the cheapest airline to fly from Seattle to Toronto Region of Waterloo Intl Airport round-trip?
Cheapflights users have booked flights from Seattle to Toronto Region of Waterloo Intl Airport round-trip from $296.
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.

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$138+ Cheap flights from Seattle (SEA) to Region of Waterloo Intl (YKF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/31. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Seattle to Region of Waterloo Intl with Cheapflights

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Cheap flight deals from Seattle to Region of Waterloo Intl

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Find flight deals from Seattle to Region of Waterloo Intl

Cheapest flights from Seattle to Region of Waterloo IntlExplore the most affordable flight options available from Seattle to Region of Waterloo Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2025.

Explore the most affordable flight options available from Seattle to Region of Waterloo Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2025.

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.

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.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Toronto Region of Waterloo Intl Airport

What is the cheapest time of day to fly from SEA to YKF?

Find hourly flight availability from Seattle to Region of Waterloo Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 1, 2025.

Reviews of airlines servicing Region of Waterloo Intl

Read through reviews of airlines operating flights from Seattle to Toronto Region of Waterloo Intl Airport, such as WestJet. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Region of Waterloo Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

What is the cheapest airline to fly from Seattle to Toronto Region of Waterloo Intl Airport round-trip?

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

How can I 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?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Region of Waterloo Intl

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Cheapest flights from Seattle to Region of Waterloo Intl
Explore the most affordable flight options available from Seattle to Region of Waterloo Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2025.