$121 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 1/30. 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

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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$209
Grand Junction
Grand Junction2 stops$296
Montrose
Montrose2 stops$286
Denver
Denvernonstop$209
Grand Junction
Grand Junction2 stops$296
Montrose
Montrose2 stops$286

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

Thu, Jan 22 - Thu, Jan 29
United Airlines Logo
8:35 am - 10:20 am
PIA
-
DEN
2h 45mnonstop
United Airlines Logo
5:30 pm - 8:47 pm
DEN
-
PIA
2h 17mnonstop
$209United Airlines
Wed, Jan 21 - Sat, Jan 24
United Airlines Logo
8:35 am - 10:20 am
PIA
-
DEN
2h 45mnonstop
United Airlines Logo
3:15 pm - 9:39 pm
DEN
-
PIA
5h 24m1 stop
$219United Airlines
Thu, Jan 22 - Thu, Jan 29
United Airlines Logo
10:45 am - 2:51 pm
PIA
-
DEN
5h 06m1 stop
United Airlines Logo
6:00 am - 12:38 pm
DEN
-
PIA
5h 38m1 stop
$229United Airlines
Sat, Feb 14 - Wed, Feb 18
United Airlines Logo
9:00 am - 10:05 am
PIA
-
DEN
2h 05mnonstop
United Airlines Logo
5:25 pm - 8:37 pm
DEN
-
PIA
2h 12mnonstop
$237United Airlines
Sat, Jan 17 - Thu, Jan 22
United Airlines Logo
3:00 pm - 9:59 pm
PIA
-
DEN
7h 59m1 stop
United Airlines Logo
5:30 pm - 8:47 pm
DEN
-
PIA
2h 17mnonstop
$239United Airlines
Sat, Mar 14 - Tue, Mar 17
United Airlines Logo
5:25 pm - 9:55 pm
PIA
-
DEN
5h 30m1 stop
United Airlines Logo
5:54 pm - 9:06 pm
DEN
-
PIA
2h 12mnonstop
$246United Airlines
Fri, May 1 - Tue, May 5
United Airlines Logo
5:25 pm - 11:40 pm
PIA
-
DEN
7h 15m1 stop
United Airlines Logo
5:29 pm - 8:47 pm
DEN
-
PIA
2h 18mnonstop
$247United Airlines
Sat, Jan 17 - Thu, Jan 22
United Airlines Logo
3:00 pm - 8:12 pm
PIA
-
DEN
6h 12m1 stop
United Airlines Logo
7:50 am - 2:23 pm
DEN
-
PIA
5h 33m1 stop
$249United Airlines
Sat, Feb 14 - Mon, Feb 16
American Airlines Logo
5:23 pm - 10:10 pm
PIA
-
COS
5h 47m1 stop
American Airlines Logo
12:30 pm - 6:25 pm
COS
-
PIA
4h 55m1 stop
$304American Airlines
Sat, Feb 14 - Mon, Feb 16
American Airlines Logo
10:01 am - 10:10 pm
PIA
-
COS
13h 09m2 stops
American Airlines Logo
12:30 pm - 6:25 pm
COS
-
PIA
4h 55m1 stop
$426American 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 January.

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 $209 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 $209.

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.

No, with an average price for the route of $338, prices are generally cheapest when you fly direct.

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 February, when tickets cost $148 (return) on average. On the other hand, the most expensive months are July and May, when the average cost of round-trip tickets is $358 and $355 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 Friday 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 31% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$121
Best time to beat the crowds with an average 36% drop in price.
Most popular time to fly and prices are also 14% 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.

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

    The cheapest time of day to fly to Colorado is generally in the evening, when round-trip flights cost $151 on average. Morning departures are around 189% 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 $437.

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 $147 one-way - $276 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 9137 reviews
7.7Boarding
7.3Comfort
6.6Food
8.1Crew
7.1Entertainment
Airline reviews

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

6.0 GoodAnonymous, Jan 2026
MKE - DEN
Read more United Airlines reviews

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Hotter than Hades in August. Why, why do crews think that in the winter when we are already dressed for cold weather we need a cabin that is 82 degrees. Even the vents were blowing hot air.

Flight was delayed. De-icing took a while. When we landed had to wait for another plane to vacate our gate. Just an overall bad experience.

Not good - outbound flight was delayed and missed my connection even though I got to the gate after running through the airport - the agent would not let me on because the door was closed (flight had not left). There was no notification from United - overall experience was very disappointing. Additionally, I was downgraded from first class to coach on the alternative flight

United have really come back. Airport and boarding process is clear and good, app and information also very good

The entertainment available didn’t work for anyone on the flight. Long 6 hr flight with no entertainment option and the staff didn’t know until an hour into the flight when we made sure they knew about it. They had no way to fix it.

Late FA meant slow boarding. WiFi did not work. I’m a medium plus sized passenger. The seatbelt was for the first time ever barely fitting. And we delayed on the tarmac 40 min

My husband and I had boarded the flight from Denver to Chicago, and one of the last passengers to get on the plane opened the overhead bin above my husband's seat and threw his bag out of the bin to make space for his own. He said, "Mine is bigger!" The flight attendant supported the new passenger. They didn't care that my husband has two artificial knees and must have the foot room in front of his seat to be able to fit his legs in -- and to be able to stand, much less walk, at the end of the flight. I have never seen this happen before, and it was a disaster.

Terrible. They wouldn't allow me on my flight on the 14th..

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

Crew were all friendly and helpful. It was a short flight so just a beverage service with a cookie. After we were boarded the plane took about 45 minutes to leave the gate but it was New Year’s Eve so not shocking there was some delay. Overall good experience and very grateful.

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.

The boarding by groups is pointless. The first two groups worked fine, but almost Noone boarded in goups three thru five leaving the vast majority boarding when group six was called. It defeated the purpose of spreading out the crowd.

We loved the steward on the plane. He made the night enjoyable

Flight was delayed leaving Dallas. Arrived about 2 hours later than scheduled.

The plane was late, when we did board the plane was as cold as a freezer. I was freezing the entire flight, no blankets. Lost miserable flight I’ve ever had.

We were delayed for a “couple of maintenance issues.” They were resolved rather quickly but a computer glitch caused someone in the airport to have to bring a physical copy of the paperwork so we could leave. I don’t know where they had to drive from to get to our plane but it took forever & we were 1 1/2 hrs late in leaving. The flight itself was fine.

Because the plane was 90 degrees F, they would not let us board. I wish they had, because it meant we were delayed. It's Texas, of course it's hot. We would have survived.

Our bags took a long time to get unloaded once we landed.

3 hour weather delay followed by 1 hour (and counting) maintenance delay. UGH!

It was fine. Nobody was outstandingly friendly but no one was rude and everything was smooth . The captain thanked us for flying but no one greeted me as I walked on the plane or as I exited which is the least they could do lol

Clean, friendly, roomy. But check-in from the phone link was terrible. Repeated attempts wouldn’t save at the final step. Just kept spinning! It was very frustrating. Finally, I used the app (vs website link) to check-in which worked very smoothly on the first attempt.

Check in on the web portal was cumbersome! After several attempts I finally got the boarding pass.

Excellent flight and even arrived 23 min early. No entertainment , or wi fi on board, but I downloaded a couple of movies beforehand which kept me entertained. Really like flying Allegiant airlines.

WE were delayed about an hour and never any communications from the employees working the gate. We also were moved to a total of three gates.

I love how they show love to their customers and care about them too.

I liked how when I got on board how fast we ended up taking off but what I truly disliked was how uncomfortable the seats were. There was truly never a time that I could ever get comfortable during both of my flights. The seats could get away during shorter flights but flights 3 hour plus makes it hard to enjoy.

The crew was great and the flight was very smooth. Can’t really judge food since I did not get any because it costs money. The seat was comfortable for what we bought. Thanks!

Crew was great. No entertainment and food and beverage was for purchase only, even water

It was canceled. The flight wasn’t rescheduled, everyone had to figure out their own new arrangements. They said we would get refunded our original fare and receive an additional $150. We received links for $100 only and they expired before we could activate them.

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

Information on your arrival and departure airports