In terms of precipitation, rainfall in USA ranges from 61.0 - 221.0 mm per month. June is typically the wettest month, when rainfall can reach 221.0 mm. November is typically the driest time to visit USA when rainfall is around 61.0 mm.

If weather is an important factor for your trip to USA, 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 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 16.0 C).

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

Most travellers choose Toronto Region of Waterloo Intl - Chicago O'Hare Intl, Toronto Region of Waterloo Intl - Seattle/Tacoma Intl or Toronto Region of Waterloo Intl - Newark when deciding on the best route from Toronto Region of Waterloo Intl Airport to USA.

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

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 USA as you normally would.

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

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

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

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 USA.

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

Yes. Cheapflights offers flight deals from Region of Waterloo Intl to USA 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$ 382+ Cheap Flights from Toronto Region of Waterloo Intl Airport to the United States

Cheap flight deals from Region of Waterloo Intl to USA

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Region of Waterloo Intl to USA
Explore the most affordable flight options available from Region of Waterloo Intl to USA. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 October 2026.

Thu 3/127:00 p.m. -

2 stops19h 10m

Sun 6/129:35 a.m. -

3 stops27h 10m

Deal found 22/10C$ 947

Thu 26/117:00 p.m. -

2 stops17h 55m

Sun 29/119:35 a.m. -

2 stops27h 10m

Deal found 22/10C$ 1,185

Thu 5/117:00 p.m. -

2 stops17h 32m

Sun 8/117:05 p.m. -

2 stops17h 40m

Deal found 21/10C$ 1,291

Fri 27/114:30 p.m. -

3 stops31h 15m

Sun 29/119:35 a.m. -

2 stops27h 10m

Deal found 24/10C$ 1,419

Fri 23/106:05 a.m. -

1 stop15h 40m

Sun 25/107:59 p.m. -

2 stops16h 46m

Deal found 22/10C$ 2,425

Find flight deals from Region of Waterloo Intl to USA

Round-trip from	C$ 947
One-way from	C$ 382
Popular in	July
Cheapest in	January
Average price	C$ 398

3/12-6/12
5 total stops
46h 20m total
Toronto to USA

Search Deals

3/12-31/12
2 total stops
45h 01m total
Toronto to USA

Search Deals

Highest demand for flights based on searches. 9% potential increase in price (C$ 61 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (C$ 11 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoLas Vegas

YKF Toronto Region of Waterloo Intl - LAS Las Vegas Harry Reid Intl

YKFLAS

Toronto Region of Waterloo Intl

Thu 3/12

7:00 p.m.-1:01 p.m.

2 stops45h 01m

Las Vegas Harry Reid Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 382

Quickest round-trip

TorontoSan Francisco

YKF Toronto Region of Waterloo Intl - SFO San Francisco

YKFSFO

Toronto Region of Waterloo Intl

Sat 5/12

7:00 p.m.-8:30 a.m.

2 stops16h 30m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 455

TorontoSan Francisco

YKF Toronto Region of Waterloo Intl - SFO San Francisco

YKFSFO

Toronto Region of Waterloo Intl

Thu 10/12

7:00 p.m.-8:30 a.m.

2 stops16h 30m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 464

TorontoSeattle

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

YKFSEA

Toronto Region of Waterloo Intl

Mon 7/12

4:30 p.m.-1:40 p.m.

2 stops24h 10m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 471

TorontoSeattle

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

YKFSEA

Toronto Region of Waterloo Intl

Thu 3/12

7:00 p.m.-1:40 p.m.

1 stop21h 40m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 472

TorontoSan Francisco

YKF Toronto Region of Waterloo Intl - SFO San Francisco

YKFSFO

Toronto Region of Waterloo Intl

Thu 12/11

7:00 p.m.-8:30 a.m.

2 stops16h 30m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 518

TorontoSan Francisco

YKF Toronto Region of Waterloo Intl - SFO San Francisco

YKFSFO

Toronto Region of Waterloo Intl

Thu 19/11

7:00 p.m.-8:30 a.m.

2 stops16h 30m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 521

TorontoSan Francisco

YKF Toronto Region of Waterloo Intl - SFO San Francisco

YKFSFO

Toronto Region of Waterloo Intl

Sat 9/1

7:00 p.m.-8:30 a.m.

2 stops16h 30m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 560

TorontoSan Francisco

YKF Toronto Region of Waterloo Intl - SFO San Francisco

YKFSFO

Toronto Region of Waterloo Intl

Fri 4/12

4:30 p.m.-8:30 a.m.

3 stops43h 00m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 567

TorontoLas Vegas

YKF Toronto Region of Waterloo Intl - LAS Las Vegas Harry Reid Intl

YKFLAS

Toronto Region of Waterloo Intl

Mon 7/12

4:30 p.m.-8:42 a.m.

2 stops43h 12m

Las Vegas Harry Reid Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 591

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/10

Showing 1-10 of 23 resultsSorted by cheapest first

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

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

YKF-LAS

YKF-SEA

YKF-SFO

YKF-SAN

YKF-PSP

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 the United States

YKF-US0

YKF-LAS

YKF-SEA

YKF-SFO

YKF-SAN

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

Reviews of airlines servicing USA

Check out reviews from past customers who have flown with WestJet and Air Canada from Toronto Region of Waterloo Intl Airport to the United States to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

WestJet

7.2

Good

3,445 reviews

Check prices

Reviews

1 / 20

6.0

Good

Deb,Jan 2025

YYZ - YYC

Boarding went smoothly, you didn't accept debit card for food on flight

WestJet

7.2

Good

3,445 reviews

WestJet

7.2

Good

3,445 reviews

Check prices

Reviews

1 / 20

6.0

Good

Deb,Jan 2025

YYZ - YYC

Boarding went smoothly, you didn't accept debit card for food on flight

Air Canada

7.1

Good

11,810 reviews

WestJet

7.2

Good

3,445 reviews

Check prices

Reviews

1 / 20

6.0

Good

Deb,Jan 2025

YYZ - YYC

Boarding went smoothly, you didn't accept debit card for food on flight

Related info for your journey

What are the most popular routes from Toronto Region of Waterloo Intl Airport to USA?
Most travellers choose Toronto Region of Waterloo Intl - Chicago O'Hare Intl, Toronto Region of Waterloo Intl - Seattle/Tacoma Intl or Toronto Region of Waterloo Intl - Newark when deciding on the best route from Toronto Region of Waterloo Intl Airport to USA.
Can I find deals for flights from Region of Waterloo Intl to USA that include hotel bookings?
Yes. In addition to deals on Region of Waterloo Intl to USA flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Region of Waterloo Intl to USA?
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 USA.
Can I find deals for business class flights from Region of Waterloo Intl to USA?
Yes. Cheapflights offers flight deals from Region of Waterloo Intl to USA 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to

Flights by cabin class

Other flight options

Popular flights

Top destinations

Top regions

Alternative routes for Region of Waterloo Intl to USA

Toronto Island to Cancún flights

Pearson Intl to Cancún flights

Hamilton to Vancouver Intl flights

Pearson Intl to Vancouver Intl flights

Hamilton to Cancún flights

Pearson Intl to Cozumel flights

Pearson Intl to Newark flights

Toronto Island to Vancouver Intl flights

Pearson Intl to John F Kennedy Intl flights

Toronto Island to Newark flights

Pearson Intl to Benito Juarez flights

Toronto Island to LaGuardia flights

Pearson Intl to Fort Lauderdale flights

Pearson Intl to LaGuardia flights

Pearson Intl to Calgary flights

Pearson Intl to Pierre Elliott Trudeau Intl flights

Hamilton to Calgary flights

Pearson Intl to Miami flights

Pearson Intl to Abbotsford flights

Toronto Island to Calgary flights

Pearson Intl to Orlando flights

Hamilton to Halifax flights

Toronto Island to John F Kennedy Intl flights

Pearson Intl to O'Hare Intl flights

Pearson Intl to Dallas/Fort Worth flights

Pearson Intl to Las Vegas flights

Toronto Island to Fort Lauderdale flights

Pearson Intl to Halifax flights

Hamilton to Newark flights

Pearson Intl to Hobby flights

Pearson Intl to Los Angeles flights

Pearson Intl to Edmonton flights

Toronto Island to Miami flights

Toronto Island to Pierre Elliott Trudeau Intl flights

Toronto Island to Orlando flights

Pearson Intl to Tampa flights

Toronto Island to Halifax flights

Pearson Intl to Puerto Vallarta flights

Toronto Island to Benito Juarez flights

Pearson Intl to Winnipeg flights

Pearson Intl to George Bush Intcntl flights

Pearson Intl to Québec City flights

Toronto Island to Ottawa flights

Pearson Intl to St. John's flights

Pearson Intl to Ottawa flights

Pearson Intl to San Francisco flights

Pearson Intl to Toluca Intl flights

Toronto Island to Edmonton flights

Toronto Island to Québec City flights

Pearson Intl to Kelowna flights

Top 2 airlines flying from Region of Waterloo Intl to USA

Airline	Cheapest	Average	Flexibility	On-time
WestJet	CheapestC$ 202	AverageC$ 272	FlexibilityNo cancel fee	On-time60%	Search WestJet flights
Air Canada	CheapestC$ 205	AverageC$ 545	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights

Fly with Cheapflights

How does Cheapflights help users find flights from Region of Waterloo Intl to USA?

Cheapflights makes it easy to find Region of Waterloo Intl to USA flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Region of Waterloo Intl to USA?

Millions of users choose and trust Cheapflights to book the best flight deals from Region of Waterloo Intl to USA for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Region of Waterloo Intl to USA, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights offers price alerts on Region of Waterloo Intl to USA 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Toronto Region of Waterloo Intl Airport to the United States from C$ 382

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/12. 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 USA

Cheapest flights from Region of Waterloo Intl to USAExplore the most affordable flight options available from Region of Waterloo Intl to USA. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 October 2026.

Explore the most affordable flight options available from Region of Waterloo Intl to USA. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 October 2026.

Best flights from Region of Waterloo Intl to USADiscover carefully curated flight deals from Region of Waterloo Intl to USA that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 25 October 2026.

Discover carefully curated flight deals from Region of Waterloo Intl to USA that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 25 October 2026.

Last-minute flights from Region of Waterloo Intl to USADiscover last-minute flight deals from Region of Waterloo Intl to USA. Data last updated 25 October 2026 and is based on user searches.

Discover last-minute flight deals from Region of Waterloo Intl to USA. Data last updated 25 October 2026 and is based on user searches.

One-way flights from Region of Waterloo Intl to USASearch for one-way flight options from Region of Waterloo Intl to USA. Find affordable one-way fares based on user searches. Data last updated 25 October 2026.

Search for one-way flight options from Region of Waterloo Intl to USA. Find affordable one-way fares based on user searches. Data last updated 25 October 2026.

Find flight deals from Region of Waterloo Intl to USA

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

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

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

Cheapflights Insights

Reviews of airlines servicing USA

Get insights into the airlines that provide service to USA. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to USA. Reviews last updated 25 October 2026.

Related info for your journey

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

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

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

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

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 Region of Waterloo Intl to USA

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to USA by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to

Book a non-stop flight to one of these other cities located in .

Search flights from Region of Waterloo Intl to USA by cabin class

Find flights from Region of Waterloo Intl to USA, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Region of Waterloo Intl and USA flights

Browse other Region of Waterloo Intl and USA flight options. Last updated on 25 October 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Region of Waterloo Intl to USA flights

Consider these flights travelling from Region of Waterloo Intl to USA.

Fly to USA regions

Consider these flights travelling to USA regions.

Top 2 airlines flying from Region of Waterloo Intl to USA

Fly with Cheapflights

How does Cheapflights help users find flights from Region of Waterloo Intl to USA?

Why should you use Cheapflights to find cheap flight tickets from Region of Waterloo Intl to USA?

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

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

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Region of Waterloo Intl to USA
Explore the most affordable flight options available from Region of Waterloo Intl to USA. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 October 2026.

Best flights from Region of Waterloo Intl to USA
Discover carefully curated flight deals from Region of Waterloo Intl to USA that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 25 October 2026.

Last-minute flights from Region of Waterloo Intl to USA
Discover last-minute flight deals from Region of Waterloo Intl to USA. Data last updated 25 October 2026 and is based on user searches.

One-way flights from Region of Waterloo Intl to USA
Search for one-way flight options from Region of Waterloo Intl to USA. Find affordable one-way fares based on user searches. Data last updated 25 October 2026.