ONT - PIA

$359 Find Cheap Flights from Ontario to Peoria

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Peoria departing on 2/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Peoria

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Peoria, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Peoria, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$359
American Airlines
Tue 2/24Sat 2/28
ONT - PIA • 1 stop
Cheapest one-way
$219
Multiple Airlines
Fri 2/20
ONT - PIA • 1 stop
Top airlines
American Airlines
Cheapest • from $359 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
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We hope you love your trip to Peoria!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to Peoria (ONT-PIA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Peoria that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Peoria

Tue, Feb 24 - Sat, Feb 28
American Airlines Logo
11:58 pm - 10:39 am
ONT
-
PIA
8h 41m
1 stop
American Airlines Logo
5:23 pm - 10:49 pm
PIA
-
ONT
7h 26m
1 stop
$359American Airlines
Tue, Feb 24 - Sat, Feb 28
American Airlines Logo
9:53 am - 10:13 pm
ONT
-
PIA
10h 20m
2 stops
American Airlines Logo
5:23 pm - 10:49 pm
PIA
-
ONT
7h 26m
1 stop
$364American Airlines
Wed, Feb 25 - Sun, Mar 1
United Airlines Logo
6:37 pm - 10:11 am
ONT
-
PIA
13h 34m
2 stops
United Airlines Logo
2:51 pm - 10:57 pm
PIA
-
ONT
10h 06m
2 stops
$369United Airlines
Sat, Mar 7 - Sun, Mar 8
United Airlines Logo
11:59 pm - 9:03 am
ONT
-
PIA
7h 04m
1 stop
United Airlines Logo
5:25 pm - 10:18 pm
PIA
-
ONT
6h 53m
1 stop
$399United Airlines
Thu, Jul 9 - Tue, Jul 14
United Airlines Logo
7:00 am - 4:58 pm
ONT
-
PIA
7h 58m
1 stop
United Airlines Logo
10:42 am - 8:17 pm
PIA
-
ONT
11h 35m
2 stops
$403United Airlines
Sat, Mar 7 - Sun, Mar 8
United Airlines Logo
6:37 pm - 9:03 am
ONT
-
PIA
12h 26m
2 stops
United Airlines Logo
5:25 pm - 10:18 pm
PIA
-
ONT
6h 53m
1 stop
$404United Airlines
Wed, May 13 - Wed, May 20
American Airlines Logo
9:24 am - 11:37 pm
ONT
-
PIA
12h 13m
2 stops
American Airlines Logo
12:12 pm - 6:37 pm
PIA
-
ONT
8h 25m
1 stop
$405American Airlines
Thu, Jul 9 - Tue, Jul 14
United Airlines Logo
1:00 pm - 12:14 am
ONT
-
PIA
9h 14m
2 stops
United Airlines Logo
10:42 am - 8:17 pm
PIA
-
ONT
11h 35m
2 stops
$406United Airlines
Thu, Jul 9 - Tue, Jul 14
United Airlines Logo
7:00 am - 4:58 pm
ONT
-
PIA
7h 58m
1 stop
United Airlines Logo
10:42 am - 10:34 pm
PIA
-
ONT
13h 52m
2 stops
$409United Airlines
Thu, Jul 9 - Tue, Jul 14
United Airlines Logo
1:00 pm - 12:14 am
ONT
-
PIA
9h 14m
2 stops
United Airlines Logo
10:42 am - 10:34 pm
PIA
-
ONT
13h 52m
2 stops
$410United Airlines
Booking Insights

KAYAK's insights & trends for Ontario to Peoria flights

Get data-powered insights and trends into flights from Ontario to Peoria to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Ontario to Peoria?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Ontario to Peoria were found on American Airlines ($359) and United Airlines ($369).

Good to know

Cheapest flight$219
Flight from Ontario to Peoria

When to book flights from Ontario to Peoria

Are your dates flexible? Find out the best times to travel from Ontario to Peoria based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Peoria

  • What is the cheapest flight from Ontario to Peoria?

    In the last 3 days, the lowest price for a flight from Ontario to Peoria was $219 for a one-way ticket and $359 for a round-trip.

  • Do I need a passport to fly between Ontario and Peoria?

    No, a passport isn't needed to fly from Ontario to Peoria. However, local authorities might ask for an official ID.

  • Which aircraft models fly most regularly from Ontario to Peoria?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Peoria?

    Star Alliance, and oneworld are the airline alliances operating flights between Ontario and Peoria, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Ontario to Peoria, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Ontario to Peoria are United Airlines and American Airlines. With an average price for the route of $493 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $503 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from Ontario to Peoria?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Peoria.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Peoria?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Peoria from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Peoria?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Peoria with an airline and back to Ontario with another airline. Booking your flights between Ontario and PIA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Peoria?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Peoria from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Ontario to Peoria

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Peoria. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Peoria? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9274 reviews
8.1Crew
7.3Comfort
7.7Boarding
6.6Food
7.1Entertainment
Airline reviews

United Airlines is my preferred airlines and I am thankful for Gary who also help support me on the phone to switch my flight literally last min.

10.0 ExcellentYesica, Feb 2026
CHS - ORD
Read more United Airlines reviews

United Airlines is my preferred airlines and I am thankful for Gary who also help support me on the phone to switch my flight literally last min.

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

Everything was absolutely wonderful from check in to baggage claim. Staff was very professional and sweet. Will definitely recommend United to family and friends.

They did the one thing that really matters - got to Chicago early.

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

Very bad! They kept delaying my flight and wouldn’t do anything about it

We flew in first class. The crew did not offer drinks before the flight took off, but they treated us well during the flight. The food was excellent. There was actually too much food served, but it was nice to have all the options.

Update to handle the delay was very bad, crews no smiles or welcome or thanks. Don’t care attitude

Pilot navigated severe weather/snow storm with skill. Described his intentions clearly

Little warm on the plane and delayed for an hour

So excited very proud first of all I wanna thank kayak all updates very professional and fast alart And amazing cabin crew so nice to me they deserve big salute

The flight was on time and arrived early. The crew were friendly and helpful.

The boarding process needs to be fixed. The zone don't work, especially when there is hardly anyone in zones 3, 4,and 5, leaving the majority of the passengers backed up in the aisle, especially because passengers seated near the front are blocking passengers who are seated in the rear of the plane. It would also help if the size of carry on bags was more strictly enforced.

Awful. They won’t help me with anything. I booked on American but they abdicated to Iberia. The ticket was overpriced. Everything negative

I enjoyed the extra leg room compared to other airlines. The first stewards made my daughter’s birthday special by giving her an extra snack. Then the last one coming home from Chicago to Appleton made our night really enjoyable Thanks for making our trip enjoyable

It was good..clean, comfy seat. Friendly warm welcoming crew. Was able to check my cabin luggage at the gate which I was able to pickup in a decent time from baggage claim. The app gave all updates from delays to baggage claim info. Overall smooth flight.

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

Information on your arrival and departure airports