What is the cheapest month to book a flight from Region of Ontario to Peoria, Illinois?

Currently, August is the cheapest month in which you can book a flight from Region of Ontario to Peoria, Illinois (average of $318). Flying from Region of Ontario to Peoria, Illinois in October is currently the most expensive (average of $425). 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.

In terms of precipitation, rainfall in Peoria, Illinois ranges from 1.8 - 4.3 inches per month. May is typically the wettest month, when rainfall can reach 4.3 in. January is typically the driest time to visit Peoria, Illinois when rainfall is around 1.8 in.

If weather is an important factor for your trip to Peoria, Illinois, 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 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 24.8 F).

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

When flying from Region of Ontario to Peoria, Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Greater Peoria (PIA), located 6.0 mi from the city center, is the airport you fly into when you book flights from Ontario to Peoria.

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

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

How can I find direct flights from Ontario to Peoria?

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

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

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

$330+ Flights from Ontario to Peoria, IL

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Cheap flight deals from Ontario to Peoria

Round-trip from	$508 (United Airlines)
One-way from	$330 (United Airlines)

From Ontario to Greater Peoria

Search Deals

One-way flight from Ontario to Greater Peoria

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Find flight deals from Ontario to Peoria

Cheapest flights from Ontario to Peoria
Explore the most affordable flight options available from Ontario to Peoria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2025.

Sat 9/139:00 amYYZ - PIA

1 stop7h 18mUnited Airlines

Sat 9/208:10 amPIA - YYZ

1 stop7h 33mUnited Airlines

Deal found 7/29

$508

Best flights from Ontario to Peoria
Discover carefully curated flight deals from Ontario to Peoria that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 1, 2025.

Sat 9/139:00 amYYZ - PIA

1 stop7h 18mUnited Airlines

Sat 9/208:10 amPIA - YYZ

1 stop7h 33mUnited Airlines

Deal found 7/29

$508

One-way flights from Ontario to Peoria
Search for one-way flight options from Ontario to Peoria. Find affordable one-way fares based on user searches. Data last updated August 1, 2025.

Thu 9/119:00 amYYZ - PIA

1 stop7h 18mUnited Airlines

Deal found 7/29

$330

Fly from

Fly to

Route

Depart

Return

Price

TorontoPeoria

YYZ - PIA

YYZPIA

Toronto Pearson Intl

Sat 9/13

9:00 am-3:18 pm

1 stop7h 18m

Greater Peoria

Sat 9/20

8:10 am-4:43 pm

1 stop7h 33m

$508

TorontoPeoria

YYZ - PIA

YYZPIA

Toronto Pearson Intl

Thu 9/11

9:00 am-3:18 pm

1 stop7h 18m

$330

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Best time to book a flight from Ontario to Peoria

Have a flexible travel schedule? Discover the best time to fly to Peoria 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 Peoria

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

Reviews of airlines servicing Peoria

Read reviews from past customers who have flown United Airlines from Ontario to Peoria. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,900 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

United Airlines

7.4

Good

8,900 reviews

United Airlines

7.4

Good

8,900 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

What airport do you fly into for flights to Peoria from Ontario?
Greater Peoria (PIA), located 6.0 mi from the city center, is the airport you fly into when you book flights from Ontario to Peoria.
Can I find deals for flights from Ontario to Peoria that include hotel bookings?
Yes. In addition to deals on Ontario to Peoria flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ontario to Peoria?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Peoria.
Can I find deals for business class flights from Ontario to Peoria?
Yes. Cheapflights offers flight deals from Ontario to Peoria 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 Region of Ontario to Peoria, Illinois?
Currently, August is the cheapest month in which you can book a flight from Region of Ontario to Peoria, Illinois (average of $318). Flying from Region of Ontario to Peoria, Illinois in October is currently the most expensive (average of $425). 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.

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$330+ Cheap flights from Ontario to Peoria, IL (PIA)

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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Peoria 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 Peoria

Keep the following information in mind while searching for Ontario to Peoria flight deals. Data was last updated August 1, 2025.

Round-trip from

One-way from

Find flight deals from Ontario to Peoria

Cheapest flights from Ontario to PeoriaExplore the most affordable flight options available from Ontario to Peoria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2025.

Explore the most affordable flight options available from Ontario to Peoria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Ontario to Peoria

Have a flexible travel schedule? Discover the best time to fly to Peoria from Ontario with our price prediction graph.

Cheapflights Insights

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

Reviews of airlines servicing Peoria

Read reviews from past customers who have flown United Airlines from Ontario to Peoria. Reviews also offer insight into each airline's 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 Peoria. 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 Peoria from Ontario?

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

How can I find direct flights from Ontario to Peoria?

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

What is the cheapest month to book a flight from Region of Ontario to Peoria, Illinois?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Ontario to Peoria

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Cheapest flights from Ontario to Peoria
Explore the most affordable flight options available from Ontario to Peoria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2025.