HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$728+ Cheap flights from Waterloo, IA (ALO) to Ontario

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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
ALO — YYZ
Apr 20 — Apr 271
Mon 4/20
Mon 4/27
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Waterloo to Ontario with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Waterloo to Ontario

Cheapest flights from Waterloo to Ontario
Explore the most affordable flight options available from Waterloo to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 21, 2026.

This American Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/22:23 pm
ALO
-
YYZ
1 stop8h 06m
American Airlines
Sat 5/91:15 pm
YYZ
-
ALO
1 stop11h 40m
American Airlines
Deal found 3/18$728
This American Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/23:22 pm
ALO
-
YYZ
1 stop20h 14m
American Airlines
Sun 7/51:16 pm
YYZ
-
ALO
1 stop11h 43m
American Airlines
Deal found 3/19$858
This American Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/13:02 pm
ALO
-
YYZ
1 stop22h 32m
American Airlines
Sun 7/51:16 pm
YYZ
-
ALO
1 stop11h 43m
American Airlines
Deal found 3/19$984

Find flight deals from Waterloo to Ontario

Keep the following information in mind while searching for Waterloo to Ontario flight deals. Data was last updated March 21, 2026.

Round-trip from

$728
(American Airlines)
From Waterloo to Ontario
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Waterloo to Ontario 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 2,558,603 searches. Data last updated March 21, 2026.
Use the filters below to find and compare flights from Waterloo to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

WaterlooToronto

ALO - YYZ

ALOYYZ

Waterloo

Sat 5/2

2:23 pm-11:29 pm

1 stop8h 06m

Toronto Pearson Intl

Sat 5/9

1:15 pm-11:55 pm

1 stop11h 40m

$728

WaterlooToronto

ALO - YYZ

ALOYYZ

Waterloo

Thu 7/2

3:22 pm-12:36 pm

1 stop20h 14m

Toronto Pearson Intl

Sun 7/5

1:16 pm-11:59 pm

1 stop11h 43m

$858

WaterlooToronto

ALO - YYZ

ALOYYZ

Waterloo

Wed 7/1

3:02 pm-2:34 pm

1 stop22h 32m

Toronto Pearson Intl

Sun 7/5

1:16 pm-11:59 pm

1 stop11h 43m

$984

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/18

Sorted by cheapest first

Best time to book a flight from Waterloo to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Waterloo 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 Waterloo to Ontario
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 Waterloo to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Waterloo to Ontario?

    Waterloo (ALO), located 5.3 mi from the city center, is the airport you fly out of when you book flights from Waterloo to Ontario.

  • How long is the flight from Waterloo, Iowa to Region of Ontario?

    American Airlines can get you from Waterloo, Iowa to Region of Ontario in just under 8h 06m. Your travel time can differ by up to . Airlines will cover a distance of 648 mi.

  • Can I find deals for flights from Waterloo to Ontario that include hotel bookings?

    Yes. In addition to deals on Waterloo to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Waterloo to Ontario?

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

  • Can I find deals for business class flights from Waterloo to Ontario?

    Yes. Cheapflights offers flight deals from Waterloo to Ontario 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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.