What are the cheapest airlines flying from Ontario to Peoria, Illinois round-trip?

Flying on American Airlines is currently your cheapest option to Peoria, Illinois, with prices starting at $314. Another option worth looking into is United Airlines, starting at $439 round trip.

What is the cheapest day to fly from Ontario to Peoria, Illinois?

Travelers seeking maximum savings on their Ontario to Peoria, Illinois flight should consider departing on Friday mornings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What is the cheapest day to fly round-trip from Ontario to Peoria, Illinois?

Users have found that flying from Ontario to Peoria, Illinois on a Wednesday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

What is the cheapest month to fly from Ontario to Peoria, Illinois?

Flights from Ontario to Peoria, Illinois lean towards being more expensive in March. Prices are generally better when you fly from Ontario to Peoria, Illinois in October, with the cheapest ticket starting at $288.

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

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

Most accurate provider : When it comes to deals on Ontario-Peoria, Illinois flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Peoria, Illinois flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Peoria, Illinois flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Ontario-Peoria, Illinois flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Peoria, Illinois flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

$314+ Flights from Ontario to Peoria, IL

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1. Tell us where you want to go

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Cheap flight deals from Ontario to Peoria

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$314 (American Airlines)
Popular in	March
Cheapest in	October
Average price	$861

Provider with most accurate pricing for Ontario-Greater Peoria flight deals.

Search Deals

Provider most trusted by Cheapflights users for Ontario-Greater Peoria flights.

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From Ontario to Greater Peoria

Search Deals

Highest demand for flights based on searches. 21% potential increase in price ($147 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease ($31 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in March 2025

Search Deals

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 March 27, 2025.

Fri 5/911:59 pmONT - PIA

1 stop8h 49mAmerican Airlines

Tue 5/136:43 amPIA - ONT

1 stop9h 09mAmerican Airlines

Deal found 3/26

$314

Thu 4/107:05 amONT - PIA

2 stops11h 46mUnited Airlines

Mon 4/1410:58 amPIA - ONT

2 stops11h 44mUnited Airlines

Deal found 3/26

$439

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 March 27, 2025.

Fri 5/911:59 pmONT - PIA

1 stop8h 49mAmerican Airlines

Tue 5/136:43 amPIA - ONT

1 stop9h 09mAmerican Airlines

Deal found 3/26

$314

Thu 4/107:05 amONT - PIA

2 stops11h 46mUnited Airlines

Mon 4/1410:58 amPIA - ONT

2 stops11h 44mUnited Airlines

Deal found 3/26

$439

Last-minute flights from Ontario to Peoria
Discover last-minute flight deals from Ontario to Peoria. Data last updated March 27, 2025 and is based on user searches.

Thu 4/35:00 amONT - PIA

2 stops9h 46mUnited Airlines

Tue 4/88:50 amPIA - ONT

1 stop8h 27mUnited Airlines

Deal found 3/26

$514

Thu 4/107:05 amONT - PIA

2 stops11h 46mUnited Airlines

Mon 4/1410:58 amPIA - ONT

2 stops11h 44mUnited Airlines

Deal found 3/26

$439

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 March 27, 2025.

Wed 4/27:05 amONT - PIA

2 stops12h 28mUnited Airlines

Deal found 3/26

$335

Tue 4/110:27 pmONT - PIA

1 stop9h 54mAmerican Airlines

Deal found 3/26

$355

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

OntarioPeoria

ONT - PIA

ONTPIA

Ontario

Fri 5/9

11:59 pm-10:48 am

1 stop8h 49m

Greater Peoria

Tue 5/13

6:43 am-1:52 pm

1 stop9h 09m

$314

OntarioPeoria

ONT - PIA

ONTPIA

Ontario

Thu 4/10

7:05 am-8:51 pm

2 stops11h 46m

Greater Peoria

Mon 4/14

10:58 am-8:42 pm

2 stops11h 44m

$439

OntarioPeoria

ONT - PIA

ONTPIA

Ontario

Wed 4/2

7:05 am-9:33 pm

2 stops12h 28m

$335

OntarioPeoria

ONT - PIA

ONTPIA

Ontario

Tue 4/1

10:27 pm-10:21 am

1 stop9h 54m

$355

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

Compare providers for flights from Ontario to Peoria

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Peoria in March.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Ontario-Peoria, Illinois flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Peoria, Illinois flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Peoria, Illinois flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Ontario-Peoria, Illinois flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Peoria, Illinois flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

Currently, August is the cheapest month in which you can book a flight from Ontario to Peoria, Illinois (average of $318). Flying from Ontario to Peoria, Illinois in July is currently the most expensive (average of $441). 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 Peoria by month

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.

Temperature in Peoria by month

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).

Reviews of airlines servicing Peoria

United Airlines

7.4

Good

8,603 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

8,603 reviews

United Airlines

7.4

Good

8,603 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!

American Airlines

7.2

Good

10,000 reviews

United Airlines

7.4

Good

8,603 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 are the cheapest airlines flying from Ontario to Peoria, Illinois round-trip?
Flying on American Airlines is currently your cheapest option to Peoria, Illinois, with prices starting at $314. Another option worth looking into is United Airlines, starting at $439 round trip.
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 Ontario to Peoria, Illinois?
Currently, August is the cheapest month in which you can book a flight from Ontario to Peoria, Illinois (average of $318). Flying from Ontario to Peoria, Illinois in July is currently the most expensive (average of $441). 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

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Ontario to Peoria

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$353	Average$692	FlexibilityNo cancel fee	On-time71%

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$314+ Cheap flights from Ontario to Peoria, IL (ONT - PIA)

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 5/9. 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

Most accurate provider

Most trusted provider

Round-trip from

Popular in

Cheapest in

Average price

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 March 27, 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 March 27, 2025.

Cheapflights Fare Finder

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

Compare providers for flights from Ontario to Peoria

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Peoria in March.

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

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

Rainfall in Peoria by month

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

Temperature in Peoria by month

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

Reviews of airlines servicing Peoria

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 are the cheapest airlines flying from Ontario to Peoria, Illinois round-trip?

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 Ontario to Peoria, Illinois?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Peoria

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Ontario to Peoria

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Travel Smart

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 March 27, 2025.