In terms of precipitation, rainfall in Waterloo, Iowa ranges from 0.8 - 5.0 inches per month. June is typically the wettest month, when rainfall can reach 5.0 in. January is typically the driest time to visit Waterloo, Iowa when rainfall is around 0.8 in.

If weather is an important factor for your trip to Waterloo, Iowa, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 19.4 F).

What is the cheapest time of day to fly from ON to ALO?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Region of Ontario to Waterloo, Iowa as you normally would.

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

Waterloo (ALO) is the airport you will fly into if you book a flight from Ontario to Waterloo. It is only a 5.3 mi journey from Waterloo (ALO) to Waterloo’s city center.

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

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

How can I find direct flights from Ontario to Waterloo?

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

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

Yes. Cheapflights offers flight deals from Ontario to Waterloo by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$624+ Flights from Ontario to Waterloo, IA

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Cheap flight deals from Ontario to Waterloo

Round-trip from	$624 (American Airlines)

From Ontario to Waterloo

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Find flight deals from Ontario to Waterloo

Cheapest flights from Ontario to Waterloo
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 July 30, 2025.

Fri 9/121:15 pmYYZ - ALO

1 stop9h 50mAmerican Airlines

Fri 9/196:00 amALO - YYZ

1 stop7h 31mAmerican Airlines

Deal found 7/29

$624

Best flights from Ontario to Waterloo
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 July 30, 2025.

Fri 9/121:15 pmYYZ - ALO

1 stop9h 50mAmerican Airlines

Fri 9/196:00 amALO - YYZ

1 stop7h 31mAmerican Airlines

Deal found 7/29

$624

Fly from

Fly to

Route

Depart

Return

Price

TorontoWaterloo

YYZ - ALO

YYZALO

Toronto Pearson Intl

Fri 9/12

1:15 pm-10:05 pm

1 stop9h 50m

Waterloo

Fri 9/19

6:00 am-2:31 pm

1 stop7h 31m

$624

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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.

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

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

Reviews of airlines servicing Waterloo

Peruse reviews from past customers who have flown with American Airlines from Ontario to Waterloo to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

American Airlines

7.2

Good

10,000 reviews

Reviews

1 / 20

2.0

Mediocre

Andrew,May 2025

LAX - MIA

2 hour delay. Discovered an engine problem late, we boarded the plane and they asked us to come off. To add insult to injury nothing was given to passengers to make amends. No free drink. No extra food or snacks. No free WiFi. Gimme a break

American Airlines

7.2

Good

10,000 reviews

American Airlines

7.2

Good

10,000 reviews

Reviews

1 / 20

2.0

Mediocre

Andrew,May 2025

LAX - MIA

Related info for your journey

What airport do you fly into for flights to Waterloo from Ontario?
Waterloo (ALO) is the airport you will fly into if you book a flight from Ontario to Waterloo. It is only a 5.3 mi journey from Waterloo (ALO) to Waterloo’s city center.
Can I find deals for flights from Ontario to Waterloo that include hotel bookings?
Yes. In addition to deals on Ontario to Waterloo flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ontario to Waterloo?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Waterloo.
Can I find deals for business class flights from Ontario to Waterloo?
Yes. Cheapflights offers flight deals from Ontario to Waterloo by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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$624+ 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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Waterloo with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Ontario to Waterloo

Keep the following information in mind while searching for Ontario to Waterloo flight deals. Data was last updated July 30, 2025.

Round-trip from

Find flight deals from Ontario to Waterloo

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 July 30, 2025.

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 July 30, 2025.

Cheapflights Fare Finder

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

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.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Waterloo

Reviews of airlines servicing Waterloo

Peruse reviews from past customers who have flown with American Airlines from Ontario to Waterloo to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Waterloo. 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 into for flights to Waterloo from Ontario?

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

How can I find direct flights from Ontario to Waterloo?

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

Traveling to a place near Waterloo?

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Alternative routes for Ontario to Waterloo

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Cheapest flights from Ontario to Waterloo
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 July 30, 2025.