$75 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 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 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$158
Grand Junction
Grand Junction1 stop$429
Montrose
Montrose1 stop$517
Denver
Denvernonstop$158
Grand Junction
Grand Junction1 stop$429
Montrose
Montrose1 stop$517

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, Aug 23 - Thu, Aug 27
Allegiant Air Logo
10:07 am - 11:26 am
PIA
-
DEN
2h 19mnonstop
Allegiant Air Logo
2:17 pm - 5:24 pm
DEN
-
PIA
2h 07mnonstop
$158Allegiant Air
Sun, Aug 16 - Thu, Aug 27
Allegiant Air Logo
5:23 pm - 6:48 pm
PIA
-
DEN
2h 25mnonstop
Allegiant Air Logo
2:17 pm - 5:24 pm
DEN
-
PIA
2h 07mnonstop
$164Allegiant Air
Sun, Aug 9 - 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
$169Allegiant Air
Tue, Aug 25 - Tue, Sep 1
United Airlines Logo
5:45 am - 10:33 am
PIA
-
COS
5h 48m
1 stop
United Airlines Logo
7:55 am - 3:00 pm
COS
-
PIA
6h 05m
1 stop
$309United Airlines
Tue, Aug 25 - Tue, Sep 1
United Airlines Logo
5:45 am - 10:33 am
PIA
-
COS
5h 48m
1 stop
United Airlines Logo
5:30 am - 3:00 pm
COS
-
PIA
8h 30m
2 stops
$314United Airlines
Tue, Aug 25 - Tue, Sep 1
American Airlines Logo
4:43 pm - 10:53 pm
PIA
-
COS
7h 10m
1 stop
American Airlines Logo
10:12 am - 11:59 pm
COS
-
PIA
12h 47m
2 stops
$342American Airlines
Fri, Aug 7 - Wed, Aug 12
United Airlines Logo
5:43 pm - 9:55 pm
PIA
-
COS
5h 12m
1 stop
United Airlines Logo
11:55 am - 7:03 pm
COS
-
PIA
6h 08m
1 stop
$380United Airlines
Sat, Dec 5 - Tue, Dec 8
United Airlines Logo
8:50 am - 1:11 pm
PIA
-
COS
5h 21m
1 stop
United Airlines Logo
1:50 pm - 8:47 pm
COS
-
PIA
5h 57m
1 stop
$389United Airlines
Fri, Aug 7 - Wed, Aug 12
American Airlines Logo
4:43 pm - 10:53 pm
PIA
-
COS
7h 10m
1 stop
American Airlines Logo
5:40 am - 11:50 am
COS
-
PIA
5h 10m
1 stop
$403American Airlines
Tue, Jul 7 - Sat, Jul 11
American Airlines Logo
4:43 pm - 10:23 pm
PIA
-
COS
6h 40m
1 stop
American Airlines Logo
10:44 am - 12:15 am
COS
-
PIA
12h 31m
2 stops
$404American 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 August.

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 5 days 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 5 days was $209.

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 $206 on average. Morning departures are around 102% 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 $415.

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, Tuesday is the most expensive day to fly from Peoria to Colorado. For your return ticket, we recommend flying on a Monday and avoiding Wednesdays 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 2 weeks before departure, which saves you about 18% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$75
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly and prices are also 33% 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 $168 one-way - $291 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 9886 reviews
7.1Entertainment
7.3Comfort
7.7Boarding
8.1Crew
6.6Food
Airline reviews

Checking bag at terminal was horrible. No agents to check us in and only 1 kiosk working. Boarding went ok. Crew onboard was very scattered rained. Missed our row while serving and then didn’t see them hardly again.

4.0 OkayDavid, Jun 2026
FAR - DEN
Read more United Airlines reviews

Checking bag at terminal was horrible. No agents to check us in and only 1 kiosk working. Boarding went ok. Crew onboard was very scattered rained. Missed our row while serving and then didn’t see them hardly again.

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

Food was great. Staff was phenomenal. Seats were a bit hard and could use a lot more entertainment options as far as movies to choose from. WiFi was good. Overall great trip.

Read the fine print. This was my flight home. I booked my flight for the quickest way home. Had a carry-on and a personal item. Same as my outbound flight. Apparently I needed to pre-pay extra for my carry-on. When I checked in, I was told that I had to check it. I said I’ll pay for it, and was told that this wasn’t an option anymore. They said I still had to pay $50 to check my carry-on. I told them I’ll pay whatever to just carry it in as intended. I was not allowed, so eventually I paid $50 to check my carry-on under a plane that was half full, with overhead compartments that were even less full. My white carry-on suitcase was practically destroyed getting from Idaho falls to Denver to Orange County. The low price air fair was a bait and switch. Got me to the gate, made me pay extra, then didn’t even allow me to pay for a carry on. Not to mention that I paid the $8 for WiFi that didn’t work. All to get my suitcase destroyed. I don’t think I’m going to even keep my Untied mileage plus membership and card. Apparently, membership does not have its privileges for this one.

I flew from Santa Fe to Denver to catch a flight to London and the transfer of my luggage on arrival at Denver to the London flight worked perfectly. The crew on the ground and on board for the London flight were so friendly and efficient.

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

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

late departure due to some unspecified issue with ventilating the cabin. They got it running but it was FREEZING for the whole flight. I asked for a blanket but they didn't provide one. They could not turn up the heat. it was quite miserable.

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

Plane was so old it had cigarette butt trays in the seat

A three hour delay to board and then another hour on the tarmac because they couldn't get a tractor? Ugh.

Allegiant canceled the flight. The flight the next day was full. Allegiant did not provide any compensation besides a refund. Last time on Allegiant.

Seats were very uncomfortable and being charged for snacks and water.........

Allegiant actually impressed me, original inbound flight from PBG was so late they gave us a bird inbound from Des Moines and only left 1h late and gained 40 minutes back in the air. Comfortable flight with no frills but no complaints.

Flight was delayed. Crew was good but hot coffee was not available.

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.

The plane had originated in Las Vegas at 6:30 in the morning and flew to Moline where we boarded. The flight left around 12:30 PM and there were no boxed snacks available and many of the alcoholic beverages were unavailable. I would find it hard to believe that that many of the passengers coming from Las Vegas at 6:30 in the morning, drank and ate that much of the items. I can only come to the conclusion that someone failed to stock the plane for the round-trip. This is a huge revenue failure for the airline and disappointment for the passengers. The flight crew did not seem happy to be there and did not engage with passengers. Allegiant you can do better.

Posted a 20minute delay but didn’t delay at all. Caused boarding issues and confusion. Also, didn’t release baggage. Took over an hour and 20 minutes to get luggage.

I went to lower my tray table and it was very nasty. Looks like some one had left some food on it and then just closed it up.

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.

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

The flight was fine. It's the satellite terminal that supports American eagle flights is what sucks. There is only one food option and everything there is way overpriced. I mean I know it's airport pricing, but it's even crazier than that. I bought a sandwich in a plastic container for $18.

Don't change gate multiple times make people run across the airport. Announce delays in a timely manner. Have maintenance crew ready. Don't delay and keep passengers on the plane for 3 hrs. on tarmac.

My seat tv didn’t work the whole trip. And the seat space is too small despite being seated at the front.

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

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.

Because I can’t stand very long in one place, I was allowed to reword.

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

Information on your arrival and departure airports