$423+ Cheap flights from Ontario to Waterloo, IA (ALO)
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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ALO
Oct 22 — Oct 291
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Waterloo with Cheapflights
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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
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Best
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Cheapest flights from Ontario to WaterlooExplore the most affordable flight options available from Ontario to Waterloo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 22, 2026.
Explore the most affordable flight options available from Ontario to Waterloo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 22, 2026.
This American Airlines deal was found by Cheapflights users on 9/22. 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 10/207:22 am -
2 stops17h 29m
Tue 10/276:07 am -
2 stops16h 38m
Deal found 9/22![American Airlines logo]()
$423
This American Airlines deal was found by Cheapflights users on 9/18. 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.
Mon 11/211:36 am -
1 stop13h 02m
Mon 11/93:43 pm -
1 stop18h 07m
Deal found 9/18![American Airlines logo]()
$502
This American Airlines deal was found by Cheapflights users on 9/19. 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.
Sat 10/103:14 pm -
1 stop9h 37m
Mon 10/123:39 pm -
1 stop19h 55m
Deal found 9/19![American Airlines logo]()
$554
This American Airlines deal was found by Cheapflights users on 9/20. 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.
Sun 10/183:14 pm -
1 stop9h 37m
Sun 10/256:07 am -
1 stop10h 37m
Deal found 9/20![American Airlines logo]()
$584
This American Airlines deal was found by Cheapflights users on 9/19. 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.
Fri 10/911:40 am -
1 stop4h 29m
Mon 10/123:39 pm -
1 stop6h 50m
Deal found 9/19![American Airlines logo]()
$703
Best flights from Ontario to WaterlooDiscover carefully curated flight deals from Ontario to Waterloo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 22, 2026.
Discover carefully curated flight deals from Ontario to Waterloo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 22, 2026.
This American Airlines deal was found by Cheapflights users on 9/22. 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 10/207:22 am -
2 stops17h 29m
Tue 10/276:07 am -
2 stops16h 38m
Deal found 9/22![American Airlines logo]()
$423
This American Airlines deal was found by Cheapflights users on 9/18. 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.
Mon 11/211:36 am -
1 stop13h 02m
Mon 11/93:43 pm -
1 stop18h 07m
Deal found 9/18![American Airlines logo]()
$502
This American Airlines deal was found by Cheapflights users on 9/19. 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.
Sat 10/1011:09 am -
2 stops13h 42m
Mon 10/123:39 pm -
1 stop19h 55m
Deal found 9/19![American Airlines logo]()
$558
This American Airlines deal was found by Cheapflights users on 9/20. 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.
Sun 10/183:14 pm -
1 stop9h 37m
Sun 10/256:07 am -
1 stop10h 37m
Deal found 9/20![American Airlines logo]()
$584
This American Airlines deal was found by Cheapflights users on 9/19. 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.
Fri 10/911:40 am -
1 stop4h 29m
Mon 10/123:39 pm -
1 stop6h 50m
Deal found 9/19![American Airlines logo]()
$703
Last-minute flights from Ontario to WaterlooDiscover last-minute flight deals from Ontario to Waterloo. Data last updated September 22, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Waterloo. Data last updated September 22, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/19. 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.
Fri 10/911:40 am -
1 stop4h 29m
Mon 10/123:39 pm -
1 stop6h 50m
Deal found 9/19![American Airlines logo]()
$703
This American Airlines deal was found by Cheapflights users on 9/19. 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.
Sat 10/103:14 pm -
1 stop9h 37m
Mon 10/123:39 pm -
1 stop19h 55m
Deal found 9/19![American Airlines logo]()
$554
This American Airlines deal was found by Cheapflights users on 9/20. 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.
Sun 10/183:14 pm -
1 stop9h 37m
Sun 10/256:07 am -
1 stop10h 37m
Deal found 9/20![American Airlines logo]()
$584
This American Airlines deal was found by Cheapflights users on 9/22. 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 10/207:22 am -
2 stops17h 29m
Tue 10/276:07 am -
2 stops16h 38m
Deal found 9/22![American Airlines logo]()
$423
Find flight deals from Ontario to Waterloo
Keep the following information in mind while searching for Ontario to Waterloo flight deals. Data was last updated September 22, 2026.
Round-trip from | $502 (American Airlines) |
|---|
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Waterloo 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 7,457,451 searches. Data last updated September 22, 2026.
Use the filters below to find and compare flights from Ontario to Waterloo that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
TorontoWaterloo
YYZ Toronto Pearson Intl - ALO Waterloo
YYZALO
Toronto Pearson Intl
Tue 10/20
7:22 am-11:51 pm
2 stops17h 29m
Waterloo
Tue 10/27
6:07 am-11:45 pm
2 stops16h 38m
$423
TorontoWaterloo
YYZ Toronto Pearson Intl - ALO Waterloo
YYZALO
Toronto Pearson Intl
Mon 11/2
11:36 am-11:38 pm
1 stop13h 02m
Waterloo
Mon 11/9
3:43 pm-10:50 am
1 stop18h 07m
$502
TorontoWaterloo
YYZ Toronto Pearson Intl - ALO Waterloo
YYZALO
Toronto Pearson Intl
Sat 10/10
11:09 am-11:51 pm
2 stops13h 42m
Waterloo
Mon 10/12
3:39 pm-12:34 pm
1 stop19h 55m
$558
TorontoWaterloo
YYZ Toronto Pearson Intl - ALO Waterloo
YYZALO
Toronto Pearson Intl
Sun 10/18
3:14 pm-11:51 pm
1 stop9h 37m
Waterloo
Sun 10/25
6:07 am-5:44 pm
1 stop10h 37m
$584
Quickest round-trip
TorontoWaterloo
YYZ Toronto Pearson Intl - ALO Waterloo
YYZALO
Toronto Pearson Intl
Fri 10/9
11:40 am-3:09 pm
1 stop4h 29m
Waterloo
Mon 10/12
3:39 pm-11:29 pm
1 stop6h 50m
$703
Sorted by cheapest first
Best time to book a flight from Ontario to Waterloo
Have a flexible travel schedule? Discover the best time to fly to Waterloo from Ontario with our price prediction graph.
YYZ-ALO
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 Ontario to Waterloo
CAON-ALO
YYZ-ALO
No data available for this route at this time. Please check back soon.
Related info for your journey
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Book flights to Waterloo if you plan to visit one of these locationsCedar Falls
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