$76 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 7/19. 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$148
Grand Junction
Grand Junction1 stop$334
Montrose
Montrose2 stops$389
Denver
Denvernonstop$148
Grand Junction
Grand Junction1 stop$334
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, 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
$148Allegiant Air
Thu, Aug 20 - 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
$151Allegiant Air
Thu, Aug 20 - 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
$157Allegiant Air
Tue, Jun 9 - Tue, Jun 16
American Airlines Logo
4:47 pm - 10:53 pm
PIA
-
GJT
7h 06m
1 stop
American Airlines Logo
4:56 pm - 11:38 pm
GJT
-
PIA
5h 42m
1 stop
$334American Airlines
Tue, Jun 9 - Tue, Jun 16
American Airlines Logo
12:24 pm - 11:43 pm
PIA
-
GJT
12h 19m
2 stops
American Airlines Logo
4:56 pm - 11:38 pm
GJT
-
PIA
5h 42m
1 stop
$339American Airlines
Sat, Oct 24 - Wed, Oct 28
United Airlines Logo
6:15 am - 2:27 pm
PIA
-
MTJ
9h 12m
2 stops
United Airlines Logo
1:35 pm - 12:19 am
MTJ
-
PIA
9h 44m
2 stops
$389United Airlines
Wed, Jul 1 - Wed, Jul 8
American Airlines Logo
12:24 pm - 11:43 pm
PIA
-
GJT
12h 19m
2 stops
American Airlines Logo
4:55 pm - 11:40 pm
GJT
-
PIA
5h 45m
1 stop
$390American Airlines
Sat, Oct 31 - Wed, Nov 4
United Airlines Logo
5:20 pm - 9:40 pm
PIA
-
COS
5h 20m
1 stop
United Airlines Logo
1:50 pm - 12:19 am
COS
-
PIA
9h 29m
2 stops
$394United Airlines
Sat, Oct 31 - Wed, Nov 4
United Airlines Logo
3:30 pm - 11:59 pm
PIA
-
COS
9h 29m
2 stops
United Airlines Logo
1:50 pm - 12:19 am
COS
-
PIA
9h 29m
2 stops
$399United Airlines
Sat, Oct 24 - Wed, Oct 28
United Airlines Logo
6:15 am - 2:27 pm
PIA
-
MTJ
9h 12m
2 stops
United Airlines Logo
1:35 pm - 8:47 pm
MTJ
-
PIA
6h 12m
1 stop
$399United 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 7 days was to Denver, at $243 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 7 days was $243.

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 $189 on average. Morning departures are around 120% 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 3 weeks before departure, which saves you about 30% 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$76
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly and prices are also 36% 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 $133 one-way - $336 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 9757 reviews
8.1Crew
7.3Comfort
6.6Food
7.7Boarding
7.1Entertainment
Airline reviews

Late- that’s what United does best. Missed my connection, rebooked to a flight 17 hours later and had to spend $500 on a hotel. What did I get? A $15 meal voucher. What can you get in an airport for $15. I hate United so much.

4.0 OkayDouglas, May 2026
MSP - DEN
Read more United Airlines reviews

Late- that’s what United does best. Missed my connection, rebooked to a flight 17 hours later and had to spend $500 on a hotel. What did I get? A $15 meal voucher. What can you get in an airport for $15. I hate United so much.

It was good overall except from Omaha to Denver when flight a was a repeatedly delayed apparently due to some issue at Denver. Communications could have been handled better. I had to board then deboard with luggage and board again

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.

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.

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.

American Airlines II: Delay Boogaloo. Multiple gate changes, delays, boarded and then MORE delays. I hate to say this won’t matter, but posting stuff about major corporations in 2026 is a post-modern “scream into the void.” Was multiple hours late coming home, so there you go.

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

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

Information on your arrival and departure airports