$58 Find Cheap Flights from Peoria to Colorado

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 Colorado departing on 7/26. 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 Colorado

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

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Denver
Denvernonstop$216
Grand Junction
Grand Junction2 stops$399
Montrose
Montrose2 stops$389
Denver
Denvernonstop$216
Grand Junction
Grand Junction2 stops$399
Montrose
Montrose2 stops$389

Book Cheap Peoria to Colorado 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 Colorado 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 Colorado

Sun, Jun 7 - Thu, Jun 18
Allegiant Air Logo
11:07 am - 12:34 pm
PIA
-
DEN
2h 27mnonstop
Allegiant Air Logo
4:50 pm - 7:56 pm
DEN
-
PIA
2h 06mnonstop
$216Allegiant Air
Sun, May 31 - Sun, Jun 7
Allegiant Air Logo
11:09 am - 12:32 pm
PIA
-
DEN
2h 23mnonstop
Allegiant Air Logo
4:24 pm - 7:30 pm
DEN
-
PIA
2h 06mnonstop
$218Allegiant Air
Sun, Jul 26 - Thu, Jul 30
Allegiant Air Logo
11:07 am - 12:30 pm
PIA
-
DEN
2h 23mnonstop
Allegiant Air Logo
4:24 pm - 7:34 pm
DEN
-
PIA
2h 10mnonstop
$225Allegiant Air
Thu, Aug 13 - Sun, Aug 16
Allegiant Air Logo
5:23 pm - 6:48 pm
PIA
-
DEN
2h 25mnonstop
Allegiant Air Logo
4:27 pm - 7:37 pm
DEN
-
PIA
2h 10mnonstop
$226Allegiant Air
Thu, Aug 13 - Wed, Aug 19
Multiple Airlines Logo
5:23 pm - 6:48 pm
PIA
-
DEN
2h 25mnonstop
Multiple Airlines Logo
2:46 pm - 9:12 am
DEN
-
PIA
41h 26m
2 stops
$274Multiple Airlines
Tue, May 19 - Sun, May 24
United Airlines Logo
2:50 pm - 9:09 pm
PIA
-
DEN
7h 19m
1 stop
United Airlines Logo
5:33 pm - 9:01 pm
DEN
-
PIA
2h 28mnonstop
$279United Airlines
Sun, Sep 6 - Sat, Sep 12
United Airlines Logo
5:45 am - 10:59 am
PIA
-
COS
6h 14m
1 stop
United Airlines Logo
12:45 pm - 7:25 pm
COS
-
PIA
5h 40m
1 stop
$309United Airlines
Sat, May 16 - Mon, Jun 1
Multiple Airlines Logo
3:03 pm - 5:56 pm
PIA
-
COS
27h 53m
1 stop
Multiple Airlines Logo
5:16 pm - 10:00 am
COS
-
PIA
39h 44m
2 stops
$400Multiple Airlines
Tue, May 19 - Wed, May 27
American Airlines Logo
5:40 pm - 10:25 pm
PIA
-
COS
5h 45m
1 stop
American Airlines Logo
3:45 pm - 11:38 pm
COS
-
PIA
6h 53m
1 stop
$409American Airlines
Tue, May 12 - Thu, May 14
American Airlines Logo
6:19 am - 6:59 pm
PIA
-
GJT
13h 40m
2 stops
American Airlines Logo
4:58 pm - 11:13 pm
GJT
-
PIA
5h 15m
1 stop
$556American Airlines
Booking Insights

KAYAK's insights & trends for Peoria to Colorado flights

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

How much is a round-trip flight from Peoria, Illinois to Colorado?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Peoria, Illinois to Colorado departing in June.

What is the cheapest Peoria to Colorado flight route?

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

The cheapest ticket to Colorado from Peoria found in the last 72 hours was to Denver, at $241 round-trip. The most popular route is from Peoria (PIA) to Denver (DEN), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $241.

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

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

The cheapest time of day to fly to Colorado is generally in the evening, when round-trip flights cost $170 on average. Morning departures are around 148% more expensive than evening flights, on average. The most expensive time of day to fly to Colorado is generally in the morning, which is peak travel time and where the average cost of a ticket is $423.

Can I save money by flying with a layover from Peoria to Colorado?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at $362 on average.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Peoria to Colorado, 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 Colorado is September, when tickets cost $45 (return) on average. On the other hand, the most expensive months are February and March, when the average cost of round-trip tickets is $248 and $219 respectively.

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

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

If your flying dates are flexible, you should consider flying to Colorado on a Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Peoria to Colorado. For your return ticket, we recommend flying on a Monday and avoiding Tuesdays for the best deals.

How far in advance should I book a flight from Peoria to Colorado?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Peoria to Colorado, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Peoria to Colorado, you should book around 3 weeks before departure, which saves you about 25% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$122
Best time to beat the crowds but there is an average 19% increase in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from Peoria to Denver

FAQs - booking Colorado flights

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

    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 Colorado.

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

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

    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 Colorado 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 Colorado?

    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 Colorado 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 Colorado

  • Looking for a cheap flight? 25% of our users found tickets from Peoria to the following destinations at these prices or less: Denver $315 one-way - $324 round-trip

Reviews of the top 3 airlines serving from Peoria to Colorado

 
See real verified KAYAK customer reviews for airlines flying from Peoria to Colorado. 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 Colorado? 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 9677 reviews
8.1Crew
7.3Comfort
6.6Food
7.7Boarding
7.1Entertainment
Airline reviews

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

4.0 OkayMichael, Apr 2026
SNA - DEN
Read more United Airlines reviews

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

They told us yesterday APR21st that they were cleaning the plane and we got delayed. After that they said they didn't had any crew for the flight so they cancelled the flight till next day.

The flight crew on this leg of my trip was very friendly and pleasant. Every one of them was humorous, as well as helpful and accommodating. This group was BY FAR the best crew I’ve flown with. They deserve kudos.

The entertainment options on the seat back video boards were nice.

The boarding process was straightforward. One pertinent observation regarding all boarding procedures is that if an individual requires assistance or possesses a special status and is part of preboarding, it is advisable to limit the number of passengers who can preboard with them, rather than the entire, sometimes large, companion groups. The seats are uncomfortable, and the entertainment options are significantly inferior compared to other airlines. During the snack service, I requested an additional bag of snacks, but my request was denied. Initially, the flight attendant agreed to my request.becoming a strange accurate moment. The flight duration was four hours.

I had a cancelled flight because of technical issues going to my destination, and a delayed flight coming home. All told it wasn’t a total bust.

During landing. 2 crew members passed 3 times by my lane and didn't notice that people in front of us had their site to the furthermore reclined... That was uncomfortable and could have been dangerous.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

It’s always a great time flying with united airlines.

We got delayed three hours and nobody thought to have the bathroom fixed while we were sitting waiting to board? took a full hour to have maintenance come and check it off. Had to shut the bathroom down twice so that the pilots could go to the bathroom. Everyone missed their connections.

Great. No choice for n/a. No food or entertainment options

No food is available without purchasing it and there is no in-flight entertainment. Both of these are OK because we got an inexpensive flight from Allegiant and, otherwise, our experience was excellent.

just had water and there was plenty of leg & seat room. But then i don't weight 220#s!!

Not totally their fault- screaming kids that had zero parent intervention.

It was cold on the flight. The crew was very pleasant. I didn't order any food. We were delayed due to Captain waiting on maintenance log. He kept us informed though. The flight itself was smooth. I would definitely fly with Allegiant again!

I had a fantastic experience with Allegiant. I had wheelchair assistance and they helped me find my luggage and brought me to my car. Even loaded my luggage. Wonderful service!! Thank you Allegiant!

Superb. Staff great. Great flight. As with other airlines, seating too tight and restrictive.

There is not one likable thing about this airline. It’s starts with the deceptive pricing and continues through the whole flight. The worst staff I’ve ever experienced way over priced bags absolutely no food or drink (unacceptable and you should be embarrassed) the seats are cramped and uncomfortable there is no entertainment there is nothing about this trash airline that constitutes any amount of money. It’s worse than spirit and way more expensive it is disgraceful. Do not travel with Allegiant I repeat do not bother no matter what they say the price is it is never ever going to be the right choice I’m mind blown at how awful the entire experience was I’m embarrassed that I chose so poorly I cannot reiterate enough how beyond horrible this company and its staff are, not one person on this flight or at the airport is qualified to sweep up trash on a city sidewalk they should certainly never be given any job that requires a brain or manners or communication with human beings, what a disgrace to the human race. Your criminal chiselers and should be put out to pasture

Great flight. Friendly staff. Free snacks and drinks would be nice. I would love fewer taxes and fees added on.

My 90 year old father flew with me. He needed wheel chair assistance and is nearly deaf. The staff was amazing with him.

The airplane was an old model, the overhead didn’t have enough room for people’s items and made boarding and boarding disappointing and stressful. Crew allowed passengers to bring more than the permitted baggage sizes.

Original flight was on time, then late, then changed gates...4 times. Once our newest plane came in, it was fine.

Everything was delayed and the staff sent me to the wrong gate, causing me to miss one of my flights. I arrived at my destination 6 hours later than I was supposed to.

I almost missed my flight and they helped me out enormously

Delays experienced in boarding/take off due to incoming plane delayed. However, the boarding time/depart time in the app was significantly delayed in providing these updates. Usually not updated until an hour after we should have already boarded. Poorly managed.

Moved to earlier flight which unexpectedly had maintenance issues initially indicated as quick fix to ultimately plane changes. Moved back to original flight, also delayed. In all cases customer updates and communication very unclear, no updates on drivers for delays.

On the return flight, arriving in Denver we sat on the tarmac in Denver for over 20 minutes.

Typical AA - late by 90+ mn. Gate changed twice... Changed the departure time 6 times No explanation, no communication on reasons for delay I travel with AA twice a year... and it is consistently very poor.. I will continue to use AA only when i have to.

The gate got changed several times and the flight was delayed over an hour. Awful experience

American continues to decline in their customer service and its beyond disappointing.

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

Information on your arrival and departure airports