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Cheap flights from the United States to Toronto Region of Waterloo Intl Airport from C$ 178

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 20/4. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — YKF
3 Dec — 10 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap 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 3 November 2025.

Round-trip from

C$ 322

One-way from

C$ 178

Popular in

July

Cheapest in

January

Average price

C$ 307
WestJet
  • WestJet
  • 1/3-7/3
  • 3 total stops
  • 42h 13m total
  • USA to Toronto
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WestJet
  • WestJet
  • 20/4
  • 1 total stop
  • 8h 44m total
  • USA to Toronto
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (C$ 84 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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Find 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 3 November 2025.

Wed 3/127:00 a.m.LAX - YKF
1 stop19h 28mWestJet
Sat 6/126:20 a.m.YKF - LAX
1 stop18h 43mWestJet
Deal found 2/11C$ 485
Fri 28/115:45 p.m.LAX - YKF
1 stop8h 43mWestJet
Thu 4/126:20 a.m.YKF - LAX
1 stop18h 43mWestJet
Deal found 2/11C$ 518
Fri 12/1211:50 a.m.LAX - YKF
2 stops14h 38mWestJet
Mon 15/126:20 a.m.YKF - LAX
1 stop13h 38mWestJet
Deal found 2/11C$ 524
Fri 21/117:35 p.m.PHX - YKF
1 stop18h 25mMultiple Airlines
Sun 23/117:05 a.m.YKF - PHX
1 stop17h 42mMultiple Airlines
Deal found 2/11C$ 537
Fri 21/1111:55 a.m.SEA - YKF
3 stops25h 05mMultiple Airlines
Sun 23/117:05 a.m.YKF - SEA
1 stop10h 15mMultiple Airlines
Deal found 2/11C$ 545
Sun 30/116:30 a.m.LAX - YKF
2 stops19h 58mMultiple Airlines
Sun 7/127:05 a.m.YKF - LAX
1 stop17h 58mMultiple Airlines
Deal found 2/11C$ 555
Mon 24/118:20 p.m.PHX - YKF
2 stops17h 40mMultiple Airlines
Sun 30/117:05 a.m.YKF - PHX
1 stop17h 42mMultiple Airlines
Deal found 2/11C$ 583
Wed 3/126:20 p.m.IAH - YKF
1 stop10h 08mWestJet
Mon 8/126:20 a.m.YKF - IAH
1 stop12h 09mWestJet
Deal found 3/11C$ 584
Tue 25/117:20 p.m.LAX - YKF
2 stops31h 08mWestJet
Mon 1/126:20 a.m.YKF - LAX
2 stops31h 40mWestJet
Deal found 2/11C$ 609
Fri 12/126:20 p.m.IAH - YKF
1 stop10h 08mWestJet
Mon 15/126:20 a.m.YKF - IAH
1 stop12h 09mWestJet
Deal found 2/11C$ 614
Sun 7/123:10 p.m.SEA - YKF
1 stop11h 18mWestJet
Thu 11/126:20 a.m.YKF - SEA
1 stop11h 00mWestJet
Deal found 2/11C$ 653
Wed 26/119:32 a.m.SEA - YKF
2 stops16h 56mMultiple Airlines
Sun 30/117:05 a.m.YKF - SEA
2 stops30h 17mMultiple Airlines
Deal found 2/11C$ 660

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 3 November 2025.
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

USA

Fly to

Region of Waterloo Intl

Route

Depart

Return

Price

PhoenixToronto

PHX - YKF

PHXYKF

Phoenix Sky Harbor Intl

Wed 11/3

1:05 p.m.-5:29 a.m.

2 stops13h 24m

Toronto Region of Waterloo Intl

Tue 24/3

6:20 a.m.-9:49 p.m.

1 stop18h 29m

C$ 322

PhoenixToronto

PHX - YKF

PHXYKF

Phoenix Sky Harbor Intl

Sun 1/3

2:05 p.m.-5:29 a.m.

2 stops13h 24m

Toronto Region of Waterloo Intl

Sat 7/3

7:00 p.m.-9:49 p.m.

1 stop28h 49m

C$ 322

PhoenixToronto

PHX - YKF

PHXYKF

Phoenix Sky Harbor Intl

Fri 6/3

2:05 p.m.-5:29 a.m.

2 stops13h 24m

Toronto Region of Waterloo Intl

Mon 9/3

6:20 a.m.-5:49 p.m.

1 stop14h 29m

C$ 346

PhoenixToronto

PHX - YKF

PHXYKF

Phoenix Sky Harbor Intl

Fri 6/3

2:05 p.m.-5:29 a.m.

2 stops13h 24m

Toronto Region of Waterloo Intl

Tue 10/3

6:20 a.m.-5:49 p.m.

1 stop14h 29m

C$ 346

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Wed 25/3

3:10 p.m.-5:29 a.m.

1 stop11h 19m

Toronto Region of Waterloo Intl

Tue 31/3

6:20 a.m.-2:19 p.m.

1 stop10h 59m

C$ 370

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Mon 6/4

3:10 p.m.-5:29 a.m.

1 stop11h 19m

Toronto Region of Waterloo Intl

Thu 9/4

6:20 a.m.-2:19 p.m.

1 stop10h 59m

C$ 370

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Mon 23/3

3:10 p.m.-5:29 a.m.

1 stop11h 19m

Toronto Region of Waterloo Intl

Thu 26/3

6:20 a.m.-2:19 p.m.

1 stop10h 59m

C$ 371

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Sun 8/3

3:10 p.m.-5:29 a.m.

1 stop11h 19m

Toronto Region of Waterloo Intl

Sat 14/3

7:00 p.m.-2:19 p.m.

1 stop22h 19m

C$ 388

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Fri 16/1

1:00 p.m.-5:28 a.m.

1 stop13h 28m

Toronto Region of Waterloo Intl

Thu 22/1

6:20 a.m.-12:12 p.m.

1 stop8h 52m

C$ 398

Los AngelesToronto

LAX - YKF

LAXYKF

Los Angeles

Fri 20/2

11:50 a.m.-5:29 a.m.

2 stops14h 39m

Toronto Region of Waterloo Intl

Mon 23/2

6:20 a.m.-10:03 p.m.

1 stop18h 43m

C$ 401

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/11

Showing 1-10 of 60 results
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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

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

Find hourly flight availability from USA 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 3 November 2025.

It’s optimal to fly from USA to Toronto Region of Waterloo Intl Airport in the evening. By choosing this option you can save up to 67% on the cost of your flight, compared to a flight in the morning.

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 13h 24m. 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 2945 km.

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

    While some choose either Seattle/Tacoma Intl - Toronto Region of Waterloo Intl or Phoenix Sky Harbor Intl - Toronto Region of Waterloo Intl, Los Angeles - 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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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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