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$521+ Cheap flights from Waterloo, IA (ALO) to Ontario

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 6/17. Fares are subject to change and may not be available on all flights or dates of travel.
ALO — YYZ
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap 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 12, 2025.

Round-trip from

$671
(American Airlines)

One-way from

$521
(American Airlines)
From Waterloo to Ontario
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One-way flight from Waterloo to Ontario
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Find 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 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/11. 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 7/263:06 pmALO - YYZ
1 stop7h 23mAmerican Airlines
Sat 8/26:30 amYYZ - ALO
1 stop9h 06mAmerican Airlines
Deal found 6/11$671

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 12, 2025.
Use the filters below to find and compare flights from Waterloo to Ontario that are best for you.

Fly from

Waterloo

Fly to

Ontario

Route

Depart

Return

Price

WaterlooToronto

ALO - YYZ

ALOYYZ

Waterloo

Sat 7/26

3:06 pm-11:29 pm

1 stop7h 23m

Toronto Pearson Intl

Sat 8/2

6:30 am-2:36 pm

1 stop9h 06m

$671

WaterlooToronto

ALO - YYZ

ALOYYZ

Waterloo

Tue 6/17

3:36 pm-12:40 pm

1 stop20h 04m

$521

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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

What is the cheapest month to book a flight from Waterloo, Iowa to Region of Ontario?

Currently, January is the cheapest month in which you can book a flight from Waterloo, Iowa to Region of Ontario (average of $243). Flying from Waterloo, Iowa to Region of Ontario in July is currently the most expensive (average of $353). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Region of Ontario ranges from 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Region of Ontario when rainfall is around 2.0 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Region of Ontario, 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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated June 12, 2025.
American Airlines
7.2
Good
10,000 reviews

Boarding

7.5

Comfort

7.2

Food

6.5

Overall

7.2

Entertainment

6.9

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Leonardo,May 2025

JFK - BGI

Good airline and so far i give them 8 out of 10.
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Boarding

7.5

Comfort

7.2

Food

6.5

Overall

7.2

Entertainment

6.9

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Leonardo,May 2025

JFK - BGI

Good airline and so far i give them 8 out of 10.

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.

  • 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.

  • What is the cheapest month to book a flight from Waterloo, Iowa to Region of Ontario?

    Currently, January is the cheapest month in which you can book a flight from Waterloo, Iowa to Region of Ontario (average of $243). Flying from Waterloo, Iowa to Region of Ontario in July is currently the most expensive (average of $353). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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