$148 Find Cheap Flights from Peoria to Illinois

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 Illinois departing on 8/23. 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 Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Peoria to Illinois, 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 Illinois, as well as popular online travel agencies
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Flight Deals

Book Cheap Peoria to Illinois Plane Tickets

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

Thu, Sep 17 - Thu, Sep 24
United Airlines Logo
6:39 pm - 8:00 pm
PIA
-
ORD
1h 21mnonstop
United Airlines Logo
8:50 am - 10:06 am
ORD
-
PIA
1h 16mnonstop
$239United Airlines
Fri, Jul 17 - Sun, Jul 19
American Airlines Logo
6:58 pm - 8:28 pm
PIA
-
ORD
1h 30mnonstop
American Airlines Logo
8:08 am - 9:17 am
ORD
-
PIA
1h 09mnonstop
$240American Airlines
Fri, Oct 9 - Sun, Oct 18
American Airlines Logo
6:21 am - 7:30 am
PIA
-
ORD
1h 09mnonstop
American Airlines Logo
8:00 am - 9:02 am
ORD
-
PIA
1h 02mnonstop
$254American Airlines
Thu, Jul 9 - Mon, Jul 13
American Airlines Logo
6:58 pm - 8:28 pm
PIA
-
ORD
1h 30mnonstop
American Airlines Logo
11:15 pm - 12:22 am
ORD
-
PIA
1h 07mnonstop
$269American Airlines
Thu, Sep 17 - Thu, Sep 24
American Airlines Logo
6:00 am - 7:19 am
PIA
-
ORD
1h 19mnonstop
American Airlines Logo
11:00 pm - 12:08 am
ORD
-
PIA
1h 08mnonstop
$307American Airlines
Thu, Sep 10 - Sun, Sep 27
United Airlines Logo
6:39 pm - 8:00 pm
PIA
-
ORD
1h 21mnonstop
United Airlines Logo
9:45 pm - 10:58 pm
ORD
-
PIA
1h 13mnonstop
$308United Airlines
Sat, Oct 31 - Wed, Nov 4
United Airlines Logo
2:35 pm - 4:00 pm
PIA
-
ORD
1h 25mnonstop
United Airlines Logo
12:45 pm - 1:55 pm
ORD
-
PIA
1h 10mnonstop
$309United Airlines
Wed, Jul 15 - Thu, Jul 16
American Airlines Logo
6:58 pm - 8:28 pm
PIA
-
ORD
1h 30mnonstop
American Airlines Logo
11:15 pm - 12:22 am
ORD
-
PIA
1h 07mnonstop
$327American Airlines
Thu, Jul 23 - Thu, Jul 30
Allegiant Air Logo
8:24 pm - 8:31 pm
PIA
-
MDW
24h 07m
1 stop
Allegiant Air Logo
9:08 am - 8:48 am
MDW
-
PIA
23h 40m
1 stop
$484Allegiant Air
Sun, Jul 12 - Thu, Jul 16
Allegiant Air Logo
8:24 pm - 8:30 pm
PIA
-
MDW
24h 06m
1 stop
Allegiant Air Logo
9:08 am - 8:48 am
MDW
-
PIA
23h 40m
1 stop
$491Allegiant Air
Booking Insights

KAYAK's insights & trends for Peoria to Illinois flights

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

What is the cheapest Peoria to Illinois flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Illinois from Peoria found in the last 5 days was to Chicago, at $299 round-trip. The most popular route is from Peoria (PIA) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 5 days was $299.

What is the cheapest time of day to fly to Illinois?

The average price for all round-trip flights from Peoria to Illinois depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Illinois is generally in the evening, when round-trip flights cost $401 on average. Morning departures are around 4% more expensive than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $453.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Peoria to Illinois, 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 Illinois is December, when tickets cost $0 (return) on average. On the other hand, the most expensive months are January and May, when the average cost of round-trip tickets is $312 and $299 respectively.

What’s the cheapest day of the week to fly from Peoria to Illinois?

The average price of all round-trip flights from Peoria to Illinois clicked on KAYAK for each day over the last 12 months.

When flying from Peoria to Illinois, you should consider leaving on a Wednesday and avoid Mondays if you are looking for the best rates. For your return to Peoria, you’ll find the best rates on Fridays and the most expensive ones on Saturdays.

Good to know

Cheapest flight$148
Flight from Peoria to Chicago O'Hare Airport

FAQs - booking Illinois flights

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

    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 Illinois.

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

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

    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 from Peoria to Illinois with an airline and back with another airline.

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

    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 from Peoria to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Illinois

  • Looking for a cheap flight? 25% of our users found tickets from Peoria to the following destinations at these prices or less: Chicago $308 one-way - $359 round-trip

Reviews of the top airlines flying from Peoria to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Peoria to Illinois. 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 Illinois? 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 9894 reviews
8.1Crew
7.7Boarding
7.1Entertainment
6.6Food
7.3Comfort
Airline reviews

1 flight cancelled Had to fly out of different city Flight at new departure city was delayed 3 hours causing us to miss connecting flights. By the time we did make it to Prague our luggage did not. Had to wait day and a half for luggage to be delivered. Customer service was not good. Agents did not arrive at gate until 5-10 minutes before boarding

2.0 MediocreRuss, Jun 2026
FOD - ORD
Read more United Airlines reviews

1 flight cancelled Had to fly out of different city Flight at new departure city was delayed 3 hours causing us to miss connecting flights. By the time we did make it to Prague our luggage did not. Had to wait day and a half for luggage to be delivered. Customer service was not good. Agents did not arrive at gate until 5-10 minutes before boarding

Awful. Delayed flights, missed connection to Toronto. Hotel vouchers were for already booked hotels x3. Giant waste of my time

Boarding was great, and the crew were very friendly. The seats must have been a bit on the older side and you could feel some of the seat components through the padding. Also, the plugs did not work on the row's entertainment screen or charging ports. Checked bag was transferred for connecting flight, and we appreciated how early we had the connecting gate information.

boarded early to only find out that flight would sit at gate for 45 min to an hour. Landed in chicago and sat on runway for over an hour before got to gate. Total delay was extensive for a 45 min flight door to door.

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

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

The schedule to Moline changed 5 times. The gate changed 6 times. That is a pathetic way to run an airline. No wonder that no one in our company flies on United Express to or from Moline. Changes happen most of the time. I learned my lesson on this trip…never again!

The plane was in Moline all night. Consequently, we assumed an on time departure at 8:15am. Unfortunately, and as is the normal case with United in Moline, we departed 2.5 hours late. When the crew came, it was discovered that there was very little heat in the plane. Seems this should have been checked hours before the crew arrived. Then when we boarded and the plane was to be de-iced, the United de-icing truck was not working! We awaited the American Airlines truck. All of this caused us to miss our connection in Chicago. My suggestion is never take United Airlines flight from Moline. We have been disappointed 80% of the time and have vowed to not take United again from Moline.

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

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

Flight was delayed…once landed at ORD, no gates were available so made us wait for 56 minutes after we landed to let us out of the aircraft!

The flight de-boarded after being informed of a 3 hour delay. The gate agent said we could go to lounge. The flight ended up boarding 20 minutes later and I missed it.

I love the e fact that the staff communicated swiftly when my flight was delayed and gate number changed

We had a mechanical delay which made us 90 minutes late (9:30 PM) then land and put into the penalty box because a plane was in our gate? What the hell! We should get priority.Damn American.

The seats were extremely cramped, with very little legroom or personal space. There was no room left in the overhead bins for a backpack, and the space under the seat in front was so limited that I could barely fit my bag underneath. Overall, the seating arrangement felt very uncomfortable and overcrowded.

weather delay of almost 2 hours then we landed and our gate wasn't available so we waited another 30 min

Delayed flight more than I hour. When boarding we spent some additional time on the plane before takeoff ....

The flight was delayed significantly and we sat on runway after landing for awhile. Best thing was the flight attendant, Jenny, in first class, who was very professional and attentive. She was excellent - the rest of the flight was not.

This flight is frequently delayed. The connections seemingly are more frequently delayed. I’ve missed connections as a result twice on the same route to charlotte then Charleston. Final destination arrival has been the next day, twice in a row. No pilots, no crew. Too many excuses. Unfortunately, my days with American are over.

Deicing in Denver took forever and I almost missed my connection. De-ice faster! Not Americans fault.

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

Information on your arrival and departure airports