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).

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

Travelers have found it’s best to book a flight 49 days in advance to save up to 112% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 49 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from State of Washington to Toronto Region of Waterloo Intl Airport 1-2 weeks in advance for as low as $510, or $719 for flights within the next 24 hours.

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

Flights from State of Washington to Toronto Region of Waterloo Intl Airport lean towards being more expensive in June. Prices are generally better when you fly from State of Washington to Toronto Region of Waterloo Intl Airport in January, with the cheapest ticket starting at $128.

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

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

How can I find direct flights from Washington 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 Washington to Region of Waterloo Intl.

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

Yes. Cheapflights offers flight deals from Washington 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.

$123+ Flights from Washington to Toronto Region of Waterloo Intl Airport

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Cheap flight deals from Washington to Region of Waterloo Intl

Round-trip from	$302 (Priceline)
One-way from	$123 (Trip.com)
Popular in	June
Cheapest in	January
Average price	$470

From Washington to Toronto Region of Waterloo Intl

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One-way flight from Washington to Toronto Region of Waterloo Intl

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Highest demand for flights based on searches. 13% potential increase in price ($63 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).

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Average for round-trip flights in August 2025

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Find flight deals from Washington to Region of Waterloo Intl

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

Wed 8/271:50 pmSEA - YKF

1 stop7h 56mWestJet

Thu 8/286:00 amYKF - SEA

1 stop9h 58mWestJet

Deal found 7/30

$302

Thu 9/111:50 pmSEA - YKF

2 stops12h 40mMultiple Airlines

Sun 9/146:15 amYKF - SEA

1 stop9h 18mMultiple Airlines

Deal found 7/29

$334

Best flights from Washington to Region of Waterloo Intl
Discover carefully curated flight deals from Washington 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 August 1, 2025.

Wed 8/271:50 pmSEA - YKF

1 stop7h 56mWestJet

Thu 8/286:00 amYKF - SEA

1 stop9h 58mWestJet

Deal found 7/30

$302

Thu 9/111:50 pmSEA - YKF

2 stops12h 40mMultiple Airlines

Sun 9/146:15 amYKF - SEA

1 stop9h 18mMultiple Airlines

Deal found 7/29

$334

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

Wed 8/61:38 pmSEA - YKF

2 stops12h 52mMultiple Airlines

Wed 8/136:00 amYKF - SEA

1 stop9h 58mMultiple Airlines

Deal found 7/30

$747

Fri 8/811:27 amSEA - YKF

2 stops10h 19mWestJet

Tue 8/127:45 pmYKF - SEA

1 stop27h 43mWestJet

Deal found 7/30

$759

Sat 8/237:05 amSEA - YKF

1 stop14h 41mMultiple Airlines

Sun 9/76:15 amYKF - SEA

1 stop9h 18mMultiple Airlines

Deal found 7/30

$371

Wed 8/271:50 pmSEA - YKF

1 stop7h 56mWestJet

Thu 8/286:00 amYKF - SEA

1 stop9h 58mWestJet

Deal found 7/30

$302

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

Sat 9/201:50 pmSEA - YKF

2 stops12h 40mMultiple Airlines

Deal found 7/31

$123

Wed 8/201:50 pmSEA - YKF

1 stop7h 56mWestJet

Deal found 7/30

$140

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington 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

Wed 8/27

1:50 pm-12:46 am

1 stop7h 56m

Toronto Region of Waterloo Intl

Thu 8/28

6:00 am-12:58 pm

1 stop9h 58m

$302

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Thu 9/11

1:50 pm-5:30 am

2 stops12h 40m

Toronto Region of Waterloo Intl

Sun 9/14

6:15 am-12:33 pm

1 stop9h 18m

$334

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Sat 9/20

1:50 pm-5:30 am

2 stops12h 40m

$123

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Wed 8/20

1:50 pm-12:46 am

1 stop7h 56m

$140

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

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

Have a flexible travel schedule? Discover the best time to fly to Region of Waterloo Intl from Washington 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 Washington to Toronto Region of Waterloo Intl Airport

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from State of Washington to Toronto Region of Waterloo Intl Airport as you normally would.

Reviews of airlines servicing Region of Waterloo Intl

Get a feel of what it's like to fly with WestJet from Washington to Toronto Region of Waterloo Intl Airport by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

WestJet

7.2

Good

2,978 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

2,978 reviews

WestJet

7.2

Good

2,978 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

Can I find deals for flights from Washington to Region of Waterloo Intl that include hotel bookings?
Yes. In addition to deals on Washington to Region of Waterloo Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington 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 Washington to Region of Waterloo Intl.
Can I find deals for business class flights from Washington to Region of Waterloo Intl?
Yes. Cheapflights offers flight deals from Washington 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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$123+ Cheap flights from Washington 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 9/20. Fares are subject to change and may not be available on all flights or dates of travel.

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

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Washington to Region of Waterloo Intl

Keep the following information in mind while searching for Washington to Region of Waterloo Intl flight deals. Data was last updated August 1, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Washington to Region of Waterloo Intl

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

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

Cheapflights Fare Finder

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

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

Have a flexible travel schedule? Discover the best time to fly to Region of Waterloo Intl from Washington with our price prediction graph.

Cheapflights Insights

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

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

Find hourly flight availability from Washington 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 August 1, 2025.

Reviews of airlines servicing Region of Waterloo Intl

Get a feel of what it's like to fly with WestJet from Washington to Toronto Region of Waterloo Intl Airport by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Washington 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.

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

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

Can I find deals for business class flights from Washington 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 Washington to Region of Waterloo Intl

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