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Cheap flights from the United States to Toronto Region of Waterloo Intl Airport from C$ 182

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 15/4. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — YKF
12 Apr — 19 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from USA to Region of Waterloo Intl

Enter your travel dates to find the best prices.

Cheapest flights from USA to Region of Waterloo Intl
Explore the most affordable flight options available from USA to Region of Waterloo Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 March 2026.

Thu 28/57:35 p.m.
SEA
-
YKF
1 stop21h 15m
WestJet
Sun 31/58:40 p.m.
YKF
-
SEA
1 stop16h 00m
WestJet
Deal found 8/3C$ 435
Wed 22/43:10 p.m.
SEA
-
YKF
1 stop11h 19m
WestJet
Mon 27/48:40 p.m.
YKF
-
SEA
1 stop16h 00m
WestJet
Deal found 10/3C$ 445
Thu 4/67:35 p.m.
SEA
-
YKF
1 stop21h 15m
WestJet
Mon 15/68:40 p.m.
YKF
-
SEA
1 stop16h 00m
WestJet
Deal found 8/3C$ 452
Thu 11/67:35 p.m.
SEA
-
YKF
1 stop21h 15m
WestJet
Tue 16/68:40 p.m.
YKF
-
SEA
1 stop16h 00m
WestJet
Deal found 9/3C$ 467
Wed 3/67:35 p.m.
SEA
-
YKF
1 stop21h 15m
WestJet
Mon 8/68:40 p.m.
YKF
-
SEA
1 stop16h 00m
WestJet
Deal found 9/3C$ 469
Thu 4/67:35 p.m.
SEA
-
YKF
1 stop21h 15m
WestJet
Tue 16/68:40 p.m.
YKF
-
SEA
1 stop16h 00m
WestJet
Deal found 8/3C$ 476
Thu 4/67:35 p.m.
SEA
-
YKF
1 stop21h 15m
WestJet
Mon 22/68:40 p.m.
YKF
-
SEA
1 stop16h 00m
WestJet
Deal found 10/3C$ 479
Mon 8/67:35 p.m.
SEA
-
YKF
1 stop21h 15m
WestJet
Fri 12/68:40 p.m.
YKF
-
SEA
1 stop25h 05m
WestJet
Deal found 9/3C$ 480
Thu 18/67:35 p.m.
SEA
-
YKF
1 stop21h 15m
WestJet
Sun 21/68:40 p.m.
YKF
-
SEA
1 stop25h 05m
WestJet
Deal found 9/3C$ 487
Fri 1/56:00 a.m.
SFO
-
YKF
1 stop10h 50m
WestJet
Wed 6/58:40 p.m.
YKF
-
SFO
1 stop18h 20m
WestJet
Deal found 11/3C$ 536
Fri 24/411:30 a.m.
LAX
-
YKF
2 stops14h 59m
Multiple Airlines
Fri 1/56:05 a.m.
YKF
-
LAX
1 stop19h 00m
Multiple Airlines
Deal found 10/3C$ 537
Wed 22/411:50 a.m.
LAX
-
YKF
2 stops14h 39m
WestJet
Mon 27/48:40 p.m.
YKF
-
LAX
1 stop23h 30m
WestJet
Deal found 11/3C$ 541

Find flight deals from USA to Region of Waterloo Intl

Keep the following information in mind while searching for USA to Region of Waterloo Intl flight deals. Data was last updated 13 March 2026.

Round-trip from

C$ 427

One-way from

C$ 182

Popular in

February

Cheapest in

April

Average price

C$ 313
WestJet
  • WestJet
  • 22/4-29/4
  • 2 total stops
  • 27h 19m total
  • USA to Toronto
Search Deals
WestJet
  • WestJet
  • 15/4
  • 2 total stops
  • 14h 39m total
  • USA to Toronto
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (C$ 98 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (C$ 33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from USA to Region of Waterloo Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 13 March 2026.
Use the filters below to find and compare flights from the United States to Toronto Region of Waterloo Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Sat 30/5

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

1 stop21h 15m

Toronto Region of Waterloo Intl

Sun 7/6

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

1 stop16h 00m

C$ 469

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Sat 30/5

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

1 stop21h 15m

Toronto Region of Waterloo Intl

Thu 4/6

8:40 p.m.-6:45 p.m.

1 stop25h 05m

C$ 558

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Fri 8/5

6:00 a.m.-7:50 p.m.

1 stop10h 50m

Toronto Region of Waterloo Intl

Mon 11/5

8:40 p.m.-9:55 p.m.

1 stop28h 15m

C$ 559

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Thu 23/4

11:12 p.m.-5:29 a.m.

2 stops27h 17m

Toronto Region of Waterloo Intl

Thu 30/4

6:05 a.m.-9:40 a.m.

1 stop30h 35m

C$ 561

Santa AnaToronto

SNA - YKF

SNAYKF

Santa Ana J. Wayne/Orange Cnty

Sun 24/5

5:50 p.m.-7:50 p.m.

1 stop23h 00m

Toronto Region of Waterloo Intl

Wed 27/5

8:40 p.m.-5:00 p.m.

1 stop23h 20m

C$ 561

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Tue 26/5

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

1 stop21h 15m

Toronto Region of Waterloo Intl

Thu 11/6

8:40 p.m.-6:45 p.m.

1 stop25h 05m

C$ 584

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Wed 27/5

8:03 a.m.-7:50 p.m.

1 stop8h 47m

Toronto Region of Waterloo Intl

Mon 1/6

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

1 stop16h 00m

C$ 585

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Wed 13/5

6:00 a.m.-7:50 p.m.

1 stop10h 50m

Toronto Region of Waterloo Intl

Wed 27/5

8:40 p.m.-9:55 p.m.

1 stop28h 15m

C$ 592

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Sat 16/5

1:00 p.m.-7:50 p.m.

1 stop27h 50m

Toronto Region of Waterloo Intl

Mon 25/5

8:40 p.m.-12:00 p.m.

1 stop18h 20m

C$ 593

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Fri 1/5

6:00 a.m.-7:50 p.m.

1 stop10h 50m

Toronto Region of Waterloo Intl

Mon 4/5

8:40 p.m.-12:00 p.m.

1 stop18h 20m

C$ 593

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/3

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from USA to Region of Waterloo Intl

Have a flexible travel schedule? Discover the best time to fly to Region of Waterloo Intl from USA 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 the United States to Toronto Region of Waterloo Intl Airport
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from USA 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.

  • How long is the flight from USA to Toronto Region of Waterloo Intl Airport?

    Airlines like WestJet fly from USA to Toronto Region of Waterloo Intl Airport in about 21h 15m. The time it takes to get you to your destination can typically vary by up to . The distance between USA and Toronto Region of Waterloo Intl Airport is about 3257 km.

  • What are the most popular routes from USA to Toronto Region of Waterloo Intl Airport?

    While some choose either Los Angeles Los Angeles - Toronto Region of Waterloo Intl or Seattle/Tacoma Intl - Toronto Region of Waterloo Intl, San Francisco - Toronto Region of Waterloo Intl is the most popular route from USA to Toronto Region of Waterloo Intl Airport.

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

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

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

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

    Yes. Cheapflights offers flight deals from USA 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
Southampton
Sauble Beach

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for USA to Region of Waterloo Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Halifax to Hamilton flights
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O'Hare Intl to Pearson Intl flights
Dallas/Fort Worth to Pearson Intl flights
Calgary to Toronto Island flights
Pierre Elliott Trudeau Intl to Toronto Island flights
Calgary to Hamilton flights
Edmonton to Toronto Island flights
Reagan-National to Pearson Intl flights
Winnipeg to Toronto Island flights
Saskatoon to Pearson Intl flights
St. John's to Pearson Intl flights
Dulles Intl to Pearson Intl flights
Halifax to Region of Waterloo Intl flights
Calgary to Region of Waterloo Intl flights
Boston to Pearson Intl flights
Boston to Toronto Island flights
Kelowna to Pearson Intl flights
Seattle to Pearson Intl flights
Abbotsford to Hamilton flights
Québec City to Pearson Intl flights
Abbotsford to Region of Waterloo Intl flights
Atlanta to Pearson Intl flights
Fredericton to Toronto Island flights
Philadelphia to Pearson Intl flights
Hobby to Pearson Intl flights
Dulles Intl to Toronto Island flights
Regina to Pearson Intl flights
Québec City to Toronto Island flights
Orlando to Pearson Intl flights
Winnipeg to Hamilton flights

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

Yes, we can. To see specific flights from USA to Region of Waterloo Intl with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, Cheapflights offers price alerts on USA to Region of Waterloo Intl flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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