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$504+ 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 7/21. Fares are subject to change and may not be available on all flights or dates of travel.
ALO — YYZ
Jul 25 — Aug 11
Sat 7/25
Sat 8/1
1 adult, Economy
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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 June 25, 2026.

This American Airlines deal was found by Cheapflights users on 6/23. 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.
Tue 7/215:06 am
ALO
-
YYZ
1 stop8h 28m
American Airlines
Tue 7/281:17 pm
YYZ
-
ALO
1 stop12h 12m
American Airlines
Deal found 6/23$504
This American Airlines deal was found by Cheapflights users on 6/23. 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 7/225:06 am
ALO
-
YYZ
1 stop17h 23m
American Airlines
Wed 7/291:17 pm
YYZ
-
ALO
1 stop12h 12m
American Airlines
Deal found 6/23$578
This American Airlines deal was found by Cheapflights users on 6/23. 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.
Fri 8/75:00 am
ALO
-
YYZ
1 stop17h 29m
American Airlines
Fri 8/147:20 am
YYZ
-
ALO
1 stop18h 02m
American Airlines
Deal found 6/23$588

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 June 25, 2026.

Round-trip from

$504
(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 June 25, 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

Tue 7/21

5:06 am-2:34 pm

1 stop8h 28m

Toronto Pearson Intl

Tue 7/28

1:17 pm-12:29 am

1 stop12h 12m

$504

WaterlooToronto

ALO - YYZ

ALOYYZ

Waterloo

Wed 7/22

5:06 am-11:29 pm

1 stop17h 23m

Toronto Pearson Intl

Wed 7/29

1:17 pm-12:29 am

1 stop12h 12m

$578

WaterlooToronto

ALO - YYZ

ALOYYZ

Waterloo

Fri 8/7

5:00 am-11:29 pm

1 stop17h 29m

Toronto Pearson Intl

Fri 8/14

7:20 am-12:22 am

1 stop18h 02m

$588

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/23

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 28m. 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

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