ONT - PIA

$422 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 7/25. 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
$449
United Airlines
Tue 9/1Sat 9/5
ONT - PIA • 1 stop
Cheapest one-way
$422
United Airlines
Sat 7/25
ONT - PIA • 1 stop
Top airlines
Cheapest • from $449 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Ontario and Peoria. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $460 (round-trip)
Shortest trip • 5h 57m (one-way)
Insights
Insights
Insights
Insights
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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, Sep 1 - Sat, Sep 5
United Airlines Logo
7:00 am - 3:00 pm
ONT
-
PIA
6h 00m
1 stop
United Airlines Logo
3:35 pm - 10:35 pm
PIA
-
ONT
9h 00m
1 stop
$449United Airlines
Tue, Sep 1 - Sat, Sep 5
United Airlines Logo
7:00 am - 3:00 pm
ONT
-
PIA
6h 00m
1 stop
United Airlines Logo
5:45 am - 6:12 pm
PIA
-
ONT
14h 27m
2 stops
$454United Airlines
Tue, Sep 1 - Sat, Sep 5
United Airlines Logo
9:15 am - 10:43 pm
ONT
-
PIA
11h 28m
2 stops
United Airlines Logo
5:45 am - 3:41 pm
PIA
-
ONT
11h 56m
2 stops
$459United Airlines
Fri, Jul 17 - Mon, Jul 20
American Airlines Logo
2:15 pm - 11:40 pm
ONT
-
PIA
7h 25m
1 stop
American Airlines Logo
4:43 pm - 11:59 pm
PIA
-
ONT
9h 16m
1 stop
$464American Airlines
Tue, Jul 14 - Sat, Jul 18
United Airlines Logo
1:18 pm - 9:01 pm
ONT
-
PIA
5h 43m
1 stop
United Airlines Logo
5:43 pm - 10:51 pm
PIA
-
ONT
7h 08m
1 stop
$519United Airlines
Wed, Aug 12 - Wed, Aug 19
United Airlines Logo
1:18 pm - 8:50 pm
ONT
-
PIA
5h 32m
1 stop
United Airlines Logo
8:45 am - 12:50 pm
PIA
-
ONT
6h 05m
1 stop
$540United Airlines
Wed, Aug 12 - Wed, Aug 19
United Airlines Logo
1:18 pm - 8:50 pm
ONT
-
PIA
5h 32m
1 stop
United Airlines Logo
8:45 am - 8:01 pm
PIA
-
ONT
13h 16m
2 stops
$545United Airlines
Tue, Jul 14 - Tue, Jul 21
United Airlines Logo
1:18 pm - 9:01 pm
ONT
-
PIA
5h 43m
1 stop
United Airlines Logo
5:43 pm - 10:51 pm
PIA
-
ONT
7h 08m
1 stop
$549United Airlines
Fri, Jul 17 - Mon, Jul 20
American Airlines Logo
2:15 pm - 11:40 pm
ONT
-
PIA
7h 25m
1 stop
American Airlines Logo
12:25 pm - 9:43 pm
PIA
-
ONT
11h 18m
2 stops
$588American Airlines
Sat, Jul 11 - Wed, Jul 15
United Airlines Logo
6:10 am - 4:58 pm
ONT
-
PIA
8h 48m
1 stop
United Airlines Logo
5:43 pm - 10:51 pm
PIA
-
ONT
7h 08m
1 stop
$594United 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 5 days.

In the past 5 days, the cheapest round-trip tickets from Ontario to Peoria were found on United Airlines ($449) and American Airlines ($464).

Good to know

Cheapest flight$422
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 5 days, the lowest price for a flight from Ontario to Peoria was $269 for a one-way ticket and $449 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 $460 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 $464 and an overall rating of 7.1.

  • 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 9901 reviews
8.1Crew
6.6Food
7.1Entertainment
7.7Boarding
7.3Comfort
Airline reviews

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

6.0 GoodRoger, May 2026
ONT - SFO
Read more United Airlines reviews

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

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.

While the staff was pleasant and helpful, the following observations are for your awareness. There was some delay on the tarmac on take off and landing. The paid lunch/food offerings were limited. Entertainment was only available on WiFi at a cost.

The first flight was better in terms of the aircraft.

As usual, United scheduling is completely misleading. A 54-minute layover at O’Hare is too short to make a lot of connections, especially since the flight landed “on time” but had to wait on the taxiway 15 minutes for a gate to open up. Then it takes another 10 minutes to exit the plane before one can run to another concourse to catch a connecting flight.

when you can say you don't remember being at any point upset during a flight, the airline is winning .

I had a great flight. Everything went smoothly and the flight arrived early.

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

Too short a flight to have service offered. A free simple snack offer (eg, biscuits), as in the old times, would have been nice.

The flight from LA to Chicago was smooth and service was very good overall.

Ontario airport boarding was very easy to park and access, is clean and TSA took 10 minutes total. Check-in was a breeze and cruise was very nice.

Good flight, seated and had a water within 5 minutes. Crew was hospitable.

The chicken wrap was tiny ($13 for what looked like a 1/3 of a normal wrap?) and disgusting.

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.

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

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

VERY disappointed at the agent checking in my luggage. I know that the weight limit is 23 kg, a little over 50 pounds (50.71 pounds). Yet the agent kept repeating "50 pounds". So I said, the limit is 23 kg, and she had the audacity to say 'no, it is 22 kg!" Imagine my surprise. Was she ignorant or was she poorly trained? Not sure. The boarding process was pretty good. The speakers were loud enough so I still could hear them despite inconsiderate passengers continuing to speak while the announcements were going on. During the flight, the teenage girl sitting behind me kept pressing her feet to the back of my chair. I turned around several times, yet she did not get the hint. I did not make a fuss since I sense I had a bad streak that night with AA, so I just did the best I can to lean forward and not let that bother me.

It was wonderful upgrading to first. Plane was so cold thou. Crew was great. Wish there was a food option in first for such a long flight. Doesnt matter the time of day. Chintzy.

Typical flight to Peoria. Had to deplane in Dallas due to lack of AC and other technical problems.

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

Information on your arrival and departure airports