In terms of precipitation, rainfall in State of Washington ranges from 18.0 - 168.0 mm per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit State of Washington when rainfall is around 18.0 mm.

If weather is an important factor for your trip to State of Washington, 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 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

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

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

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

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

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

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

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

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

C$ 243+ Cheap Flights from Toronto Region of Waterloo Intl Airport to Washington

Cheap flight deals from Region of Waterloo Intl to Washington

Enter your travel dates to find the best prices.

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One-way

Cheapest flights from Region of Waterloo Intl to Washington
Explore the most affordable flight options available from Region of Waterloo Intl to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 August 2026.

Fri 28/88:40 p.m. -

1 stop20h 10m

Tue 1/92:30 p.m. -

1 stop26h 20m

Deal found 13/8C$ 461

Sun 27/98:40 p.m. -

1 stop25h 05m

Sun 4/107:35 p.m. -

1 stop21h 15m

Deal found 13/8C$ 498

Tue 22/98:40 p.m. -

1 stop16h 00m

Sat 3/107:35 p.m. -

1 stop21h 15m

Deal found 13/8C$ 499

Fri 9/108:40 p.m. -

1 stop25h 05m

Tue 13/107:35 p.m. -

1 stop21h 15m

Deal found 13/8C$ 502

Tue 25/88:40 p.m. -

1 stop16h 00m

Tue 15/97:35 p.m. -

1 stop21h 15m

Deal found 13/8C$ 516

Wed 2/98:40 p.m. -

1 stop16h 00m

Thu 10/97:35 p.m. -

1 stop21h 15m

Deal found 13/8C$ 517

Thu 24/98:40 p.m. -

1 stop16h 00m

Wed 30/97:35 p.m. -

1 stop21h 15m

Deal found 10/8C$ 546

Fri 2/108:40 p.m. -

1 stop25h 05m

Sun 11/107:35 p.m. -

1 stop21h 15m

Deal found 12/8C$ 566

Fri 4/98:40 p.m. -

1 stop16h 00m

Fri 11/97:35 p.m. -

1 stop21h 15m

Deal found 9/8C$ 569

Sun 20/98:40 p.m. -

1 stop16h 00m

Mon 28/97:35 p.m. -

1 stop21h 15m

Deal found 9/8C$ 570

Fri 11/98:40 p.m. -

1 stop16h 00m

Mon 21/97:35 p.m. -

1 stop21h 15m

Deal found 10/8C$ 574

Mon 14/98:40 p.m. -

1 stop16h 00m

Fri 18/97:35 p.m. -

1 stop21h 15m

Deal found 10/8C$ 576

Best flights from Region of Waterloo Intl to Washington
Discover carefully curated flight deals from Region of Waterloo Intl to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 14 August 2026.

Fri 28/88:40 p.m. -

1 stop20h 10m

Tue 1/92:30 p.m. -

1 stop26h 20m

Deal found 13/8C$ 461

Fri 4/98:40 p.m. -

1 stop20h 10m

Tue 8/92:30 p.m. -

2 stops11h 55m

Deal found 13/8C$ 615

Wed 30/98:40 p.m. -

1 stop16h 00m

Sun 4/107:35 p.m. -

1 stop21h 15m

Deal found 13/8C$ 499

Sun 27/98:40 p.m. -

1 stop16h 00m

Sun 4/107:35 p.m. -

1 stop21h 15m

Deal found 13/8C$ 516

Tue 25/88:40 p.m. -

1 stop16h 00m

Tue 15/97:35 p.m. -

1 stop21h 15m

Deal found 13/8C$ 516

Fri 25/98:40 p.m. -

1 stop16h 00m

Sun 27/98:10 p.m. -

1 stop20h 40m

Deal found 10/8C$ 633

Wed 2/98:40 p.m. -

1 stop16h 00m

Thu 10/97:35 p.m. -

1 stop21h 15m

Deal found 13/8C$ 517

Sun 20/98:40 p.m. -

1 stop16h 00m

Mon 28/97:35 p.m. -

1 stop21h 15m

Deal found 9/8C$ 570

Thu 3/98:40 p.m. -

1 stop20h 10m

Sat 5/92:30 p.m. -

2 stops11h 55m

Deal found 11/8C$ 804

Fri 11/98:40 p.m. -

1 stop16h 00m

Mon 21/97:35 p.m. -

1 stop21h 15m

Deal found 10/8C$ 574

Thu 3/98:40 p.m. -

1 stop20h 10m

Sun 6/92:30 p.m. -

1 stop11h 50m

Deal found 9/8C$ 816

Fri 18/98:40 p.m. -

1 stop16h 00m

Sun 27/97:35 p.m. -

1 stop21h 15m

Deal found 11/8C$ 579

Sat 5/98:40 p.m. -

1 stop27h 20m

Tue 15/97:35 p.m. -

1 stop21h 15m

Deal found 9/8C$ 586

Sat 19/98:40 p.m. -

1 stop16h 00m

Sun 27/97:35 p.m. -

1 stop21h 15m

Deal found 12/8C$ 586

Tue 29/98:40 p.m. -

1 stop25h 05m

Tue 6/107:35 p.m. -

1 stop21h 15m

Deal found 9/8C$ 630

Fri 9/108:40 p.m. -

1 stop25h 05m

Tue 13/107:35 p.m. -

1 stop21h 15m

Deal found 12/8C$ 654

Wed 9/98:40 p.m. -

1 stop20h 10m

Wed 16/92:30 p.m. -

1 stop26h 20m

Deal found 10/8C$ 739

Sat 12/98:40 p.m. -

1 stop20h 10m

Wed 16/92:30 p.m. -

1 stop26h 20m

Deal found 12/8C$ 757

Sat 19/98:40 p.m. -

1 stop20h 10m

Wed 23/92:30 p.m. -

1 stop26h 20m

Deal found 10/8C$ 792

Tue 8/98:40 p.m. -

1 stop20h 10m

Fri 11/92:30 p.m. -

1 stop26h 20m

Deal found 12/8C$ 882

Wed 9/98:40 p.m. -

1 stop20h 10m

Fri 11/92:30 p.m. -

1 stop26h 20m

Deal found 11/8C$ 894

Thu 10/98:40 p.m. -

1 stop20h 10m

Tue 15/95:40 a.m. -

2 stops11h 10m

Deal found 12/8C$ 898

Thu 24/98:40 p.m. -

1 stop20h 10m

Mon 28/92:30 p.m. -

1 stop26h 20m

Deal found 11/8C$ 935

Sat 5/98:40 p.m. -

1 stop20h 10m

Sat 3/105:50 p.m. -

2 stops23h 00m

Deal found 9/8C$ 974

Find flight deals from Region of Waterloo Intl to Washington

Round-trip from	C$ 461
One-way from	C$ 243
Popular in	June
Cheapest in	February
Average price	C$ 586

WestJet
28/8-1/9
2 total stops
46h 30m total
Toronto to Washington

Search Deals

WestJet
31/8
1 total stop
20h 10m total
Toronto to Washington

Search Deals

Highest demand for flights based on searches. 14% potential increase in price (C$ 122 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (C$ 21 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 2026

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoPortland

YKF Toronto Region of Waterloo Intl - PDX Portland

YKFPDX

Toronto Region of Waterloo Intl

Fri 28/8

8:40 p.m.-1:50 p.m.

1 stop20h 10m

Portland

Tue 1/9

2:30 p.m.-7:50 p.m.

1 stop26h 20m

C$ 461

TorontoSeattle

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

YKFSEA

Toronto Region of Waterloo Intl

Wed 30/9

8:40 p.m.-9:40 a.m.

1 stop16h 00m

Seattle/Tacoma Intl

Sun 4/10

7:35 p.m.-7:50 p.m.

1 stop21h 15m

C$ 499

TorontoSeattle

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

YKFSEA

Toronto Region of Waterloo Intl

Sun 27/9

8:40 p.m.-9:40 a.m.

1 stop16h 00m

Seattle/Tacoma Intl

Sun 4/10

7:35 p.m.-7:50 p.m.

1 stop21h 15m

C$ 516

TorontoSeattle

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

YKFSEA

Toronto Region of Waterloo Intl

Tue 25/8

8:40 p.m.-9:40 a.m.

1 stop16h 00m

Seattle/Tacoma Intl

Tue 15/9

7:35 p.m.-7:50 p.m.

1 stop21h 15m

C$ 516

TorontoSeattle

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

YKFSEA

Toronto Region of Waterloo Intl

Wed 2/9

8:40 p.m.-9:40 a.m.

1 stop16h 00m

Seattle/Tacoma Intl

Thu 10/9

7:35 p.m.-7:50 p.m.

1 stop21h 15m

C$ 517

TorontoSeattle

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

YKFSEA

Toronto Region of Waterloo Intl

Sun 20/9

8:40 p.m.-9:40 a.m.

1 stop16h 00m

Seattle/Tacoma Intl

Mon 28/9

7:35 p.m.-7:50 p.m.

1 stop21h 15m

C$ 570

TorontoSeattle

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

YKFSEA

Toronto Region of Waterloo Intl

Fri 11/9

8:40 p.m.-9:40 a.m.

1 stop16h 00m

Seattle/Tacoma Intl

Mon 21/9

7:35 p.m.-7:50 p.m.

1 stop21h 15m

C$ 574

TorontoSeattle

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

YKFSEA

Toronto Region of Waterloo Intl

Fri 18/9

8:40 p.m.-9:40 a.m.

1 stop16h 00m

Seattle/Tacoma Intl

Sun 27/9

7:35 p.m.-7:50 p.m.

1 stop21h 15m

C$ 579

TorontoSeattle

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

YKFSEA

Toronto Region of Waterloo Intl

Sat 5/9

8:40 p.m.-9:00 p.m.

1 stop27h 20m

Seattle/Tacoma Intl

Tue 15/9

7:35 p.m.-7:50 p.m.

1 stop21h 15m

C$ 586

TorontoSeattle

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

YKFSEA

Toronto Region of Waterloo Intl

Sat 19/9

8:40 p.m.-9:40 a.m.

1 stop16h 00m

Seattle/Tacoma Intl

Sun 27/9

7:35 p.m.-7:50 p.m.

1 stop21h 15m

C$ 586

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/8

Showing 1-10 of 46 resultsSorted by cheapest first

...

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

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

YKF-PDX

YKF-SEA

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 Toronto Region of Waterloo Intl Airport to Washington

YKF-USWA

YKF-PDX

YKF-SEA

No data available for this route at this time. Please check back soon.

Related info for your journey

How long is the flight from Toronto Region of Waterloo Intl Airport to State of Washington?
Airlines like WestJet fly from Toronto Region of Waterloo Intl Airport to State of Washington in about 20h 10m. The time it takes to get you to your destination can typically vary by up to . There are 3314 km between Toronto Region of Waterloo Intl Airport and State of Washington.
Can I find deals for flights from Region of Waterloo Intl to Washington that include hotel bookings?
Yes. In addition to deals on Region of Waterloo Intl to Washington flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Region of Waterloo Intl to Washington?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Region of Waterloo Intl to Washington.
Can I find deals for business class flights from Region of Waterloo Intl to Washington?
Yes. Cheapflights offers flight deals from Region of Waterloo Intl to Washington 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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Alternative routes for Region of Waterloo Intl to Washington

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

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Cheap flights from Toronto Region of Waterloo Intl Airport to Washington from C$ 243

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 31/8. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Region of Waterloo Intl to Washington

Cheapest flights from Region of Waterloo Intl to WashingtonExplore the most affordable flight options available from Region of Waterloo Intl to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 August 2026.

Explore the most affordable flight options available from Region of Waterloo Intl to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 August 2026.

Best flights from Region of Waterloo Intl to WashingtonDiscover carefully curated flight deals from Region of Waterloo Intl to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 14 August 2026.

Discover carefully curated flight deals from Region of Waterloo Intl to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 14 August 2026.

Last-minute flights from Region of Waterloo Intl to WashingtonDiscover last-minute flight deals from Region of Waterloo Intl to Washington. Data last updated 14 August 2026 and is based on user searches.

Discover last-minute flight deals from Region of Waterloo Intl to Washington. Data last updated 14 August 2026 and is based on user searches.

One-way flights from Region of Waterloo Intl to WashingtonSearch for one-way flight options from Region of Waterloo Intl to Washington. Find affordable one-way fares based on user searches. Data last updated 14 August 2026.

Search for one-way flight options from Region of Waterloo Intl to Washington. Find affordable one-way fares based on user searches. Data last updated 14 August 2026.

Find flight deals from Region of Waterloo Intl to Washington

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

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Cheapflights Insights

Related info for your journey

How long is the flight from Toronto Region of Waterloo Intl Airport to State of Washington?

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

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

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Region of Waterloo Intl to Washington

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Complete your trip

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Region of Waterloo Intl and Washington flights

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Cheapest flights from Region of Waterloo Intl to Washington
Explore the most affordable flight options available from Region of Waterloo Intl to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 August 2026.

Best flights from Region of Waterloo Intl to Washington
Discover carefully curated flight deals from Region of Waterloo Intl to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 14 August 2026.

Last-minute flights from Region of Waterloo Intl to Washington
Discover last-minute flight deals from Region of Waterloo Intl to Washington. Data last updated 14 August 2026 and is based on user searches.

One-way flights from Region of Waterloo Intl to Washington
Search for one-way flight options from Region of Waterloo Intl to Washington. Find affordable one-way fares based on user searches. Data last updated 14 August 2026.