PIA - ONT

$178 Find Cheap Flights from Peoria to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Peoria to Ontario departing on 8/3. 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 Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Peoria to Ontario, 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 Peoria to Ontario, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$379
Typical prices: $642-$795
American Airlines
Tue 7/28Sat 8/1
PIA - ONT • 1 stop
Cheapest one-way
$178
Multiple Airlines
Mon 8/3
PIA - ONT • 2 stops
Top airlines
Cheapest • from $379 (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 Peoria and Ontario. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $470 (round-trip)
Shortest trip • 5h 41m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Ontario!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Peoria to Ontario (PIA-ONT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Peoria to Ontario 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 Peoria to Ontario

Tue, Jul 28 - Sat, Aug 1
American Airlines Logo
4:43 pm - 11:59 pm
PIA
-
ONT
9h 16m
1 stop
American Airlines Logo
5:34 am - 3:52 pm
ONT
-
PIA
8h 18m
1 stop
$379American Airlines
Tue, Jul 28 - Sat, Aug 1
American Airlines Logo
12:25 pm - 9:43 pm
PIA
-
ONT
11h 18m
2 stops
American Airlines Logo
5:34 am - 3:52 pm
ONT
-
PIA
8h 18m
1 stop
$445American Airlines
Tue, Aug 18 - Sat, Aug 29
American Airlines Logo
7:11 am - 11:43 am
PIA
-
ONT
6h 32m
1 stop
American Airlines Logo
2:43 pm - 11:19 pm
ONT
-
PIA
6h 36m
1 stop
$449American Airlines
Tue, Oct 27 - Sat, Oct 31
United Airlines Logo
10:43 am - 8:06 pm
PIA
-
ONT
11h 23m
2 stops
United Airlines Logo
6:46 am - 4:55 pm
ONT
-
PIA
8h 09m
1 stop
$454United Airlines
Tue, Oct 27 - Sat, Oct 31
United Airlines Logo
10:43 am - 8:06 pm
PIA
-
ONT
11h 23m
2 stops
United Airlines Logo
5:00 am - 6:39 pm
ONT
-
PIA
11h 39m
2 stops
$459United Airlines
Sat, Aug 1 - Sat, Aug 8
United Airlines Logo
5:43 pm - 10:51 pm
PIA
-
ONT
7h 08m
1 stop
United Airlines Logo
5:00 am - 11:20 pm
ONT
-
PIA
16h 20m
2 stops
$527United Airlines
Tue, Jul 28 - Sat, Aug 1
American Airlines Logo
12:25 pm - 9:43 pm
PIA
-
ONT
11h 18m
2 stops
American Airlines Logo
1:11 pm - 12:15 am
ONT
-
PIA
9h 04m
2 stops
$541American Airlines
Tue, Oct 27 - Sat, Oct 31
United Airlines Logo
8:50 am - 8:56 pm
PIA
-
ONT
14h 06m
1 stop
United Airlines Logo
1:13 pm - 8:47 pm
ONT
-
PIA
5h 34m
1 stop
$542United Airlines
Wed, Oct 14 - Sun, Oct 18
American Airlines Logo
4:43 pm - 11:06 pm
PIA
-
ONT
8h 23m
1 stop
American Airlines Logo
8:00 pm - 9:02 am
ONT
-
PIA
11h 02m
2 stops
$560American Airlines
Sat, Aug 1 - Sat, Aug 8
United Airlines Logo
5:43 pm - 10:51 pm
PIA
-
ONT
7h 08m
1 stop
United Airlines Logo
5:00 am - 9:01 pm
ONT
-
PIA
14h 01m
1 stop
$577United Airlines
Booking Insights

KAYAK's insights & trends for Peoria to Ontario flights

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Peoria to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Peoria to Ontario is January, where tickets cost $0 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is $762 and $707 respectively.

Good to know

Low seasonMarch
Cheapest flight$178
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly with an average 4% increase in price.
Flight from Peoria to Ontario

When to book flights from Peoria to Ontario

Are your dates flexible? Find out the best times to travel from Peoria to Ontario 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 Peoria to Ontario

  • What is the cheapest flight from Peoria to Ontario?

    In the last 5 days, the lowest price for a flight from Peoria to Ontario was $178 for a one-way ticket and $379 for a round-trip.

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

    A passport is not required to fly from Peoria to Ontario.

  • Which airports will I be using when flying from Peoria to Ontario?

    Peoria and Ontario are both served by 1 main airport. You will leave Peoria from Greater Peoria and will be arriving at Ontario.

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

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

  • Which airline alliances offer flights from Peoria to Ontario?

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

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

    The two airlines most popular with KAYAK users for flights from Peoria to Ontario are United Airlines and American Airlines. With an average price for the route of $581 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 $543 and an overall rating of 7.1.

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

    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 Peoria to Ontario.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Peoria 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 Peoria to Ontario?

    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 Ontario with an airline and back to Peoria with another airline. Booking your flights between Peoria and ONT 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 Peoria to Ontario?

    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 Ontario from Peoria 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 Peoria to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Peoria to Ontario. 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 Peoria to Ontario? 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 9899 reviews
7.1Entertainment
7.3Comfort
8.1Crew
6.6Food
7.7Boarding
Airline reviews

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

8.0 ExcellentSally, Apr 2026
ORD - SNA
Read more United Airlines reviews

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

Several missed and almost missed connections. It felt like everything was being patched together last minute without enough resources and it ended up being an extremely stressful experience that basically ruined our weekend on the west coast. What a waste.

Terrible, if possible won't be flying again anytime soon!

Subject: Formal Complaint: Discriminatory and Unprofessional Conduct – Request for Immediate Action & Compensation Dear [Airline Customer Relations Team], I am writing to file a formal complaint regarding my recent travel experience with [Airline], which was by far the worst I have ever encountered. What occurred was not only unprofessional, but in several instances discriminatory, unsafe, and unacceptable. On the first leg of my trip, I arrived only four minutes past check-in. Instead of making any attempt to resolve the matter, your representative flatly denied me boarding and made me wait while she attended to passengers who arrived after me. By the time a manager intervened, it was too late to board, costing me time, money, and unnecessary frustration. The second leg of my trip (Chicago–San Francisco) raised even more serious concerns. From the outset, it was apparent that the staff—particularly two attendants—prioritized Caucasian passengers while dismissing African American and minority passengers. • When a Caucasian passenger in the exit row refused to comply with federal safety requirements, I, as a first responder, immediately offered to switch seats and assume the responsibility. My offer was blatantly ignored, and instead, a Caucasian passenger seated further up was chosen. This was discriminatory and deeply insulting, especially as I was actively de-escalating the situation that could have delayed the flight further. • During a lengthy tarmac delay of over 90 minutes, passengers were given conflicting and unreasonable instructions that created unnecessary distress and tension. • Throughout the flight, a visibly intoxicated passenger directly in front of me was disruptive, rude to others, failed to comply with seatbelt and electronic device rules, and yet faced no enforcement from the crew. In stark contrast, I was singled out for repeated compliance checks even though I was following every rule. This unequal treatment was so obvious that multiple passengers around me spoke up in my defense. This pattern of behavior demonstrated a clear lack of professionalism, disregard for passenger safety, and discriminatory treatment. I expect far better from an airline of your stature. As a paying customer subjected to this unacceptable treatment, I am formally requesting: 1. A full investigation into the conduct of the staff on both flights. 2. A written apology acknowledging the discriminatory and unprofessional behavior I endured. 3. Appropriate compensation for the distress, inconvenience, and mishandling of my travel. If this matter is not addressed promptly and thoroughly, I will have no choice but to escalate my complaint further, including filing with the U.S. Department of Transportation and sharing my experience through other channels. I trust [Airline] will take this complaint seriously and provide a timely resolution.

Check in was quick and easy during early hours. Flight was on time, and customer services was a plus.

Weather delay in Chicago?. No sense of urgency to make connection in Chicago for our connecting flight that wasn't delayed. Connection was missed.

A bit rush for transit. Food and entertainment are not available

We arrived early and finally made it to our gate almost an hour after.

The flight was delayed instead of leaving at 11 it left at 12.20

Airline did not explain reasons why flight was delayed two hours. Explanations were badly needed and rarely provided. Problem seemed to clearly be the airline’s fault and not the fault of the weather or airport.

It was so much better than expected, Ohare is not such a pleasant experience but American Airlines with the new, clean aeroplane and free Wi-Fi was outstanding and the crew so pleasant and helpful.

Smooth flight. From the early boarding and all were on board before departure time and arrived early in ONT. Great crew. Thank you!!!!

Amazing I love American. I’ll never fly anyone else if I can help it.

Amazing food, great staff, with one noticable detail missing ...but no seat entertainment in any of aircraft ...I am not a fan

My boarding pass wouldn't pull up in the app very easily and had to really dig through my email. That caused a delay in TSA..

Baby cried a lot. Nothing anyone could do about it. Just part of flying.

The flight crew was fantastic! Which the seats had a small TV.

My husband and I pre-ordered our food, but they did not have my husband’s order, and my cheese plate was very average. I asked for a blanket and was told they don’t carry blankets on domestic routs. The flight was on time and smooth!

Everything was great except for the wifi was junk. Crew was super friendly and helpful

It was fine. I didn't love the food but it was at least a real attempt at serving a meal, unlike my earlier flight from Nashville to Dallas.

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

Information on your arrival and departure airports