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Peoria

$99+ Cheap flights from Colorado to Peoria, IL (PIA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — PIA
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from Colorado to Peoria

Keep the following information in mind while searching for Colorado to Peoria flight deals. Data was last updated July 31, 2025.

Round-trip from

$115
(Booking.com)

One-way from

$99
(Cheapflightsfares)

Popular in

December

Cheapest in

February

Average price

$294

Good round-trip deal

$138 or less

Good one-way deal

$139 or less
From Colorado to Greater Peoria
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One-way flight from Colorado to Greater Peoria
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Highest demand for flights based on searches. 17% potential increase in price ($58 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Colorado to Greater Peoria.
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Price to beat on a one-way flight from Colorado to Greater Peoria.
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Find flight deals from Colorado to Peoria

Cheapest flights from Colorado to Peoria
Explore the most affordable flight options available from Colorado to Peoria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/145:50 pmDEN - PIA
Nonstop1h 57mAllegiant Air
Mon 11/1712:09 pmPIA - DEN
Nonstop2h 25mAllegiant Air
Deal found 7/28$113
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/232:45 pmDEN - PIA
1 stop5h 07mUnited Airlines
Mon 8/258:45 amPIA - DEN
Nonstop2h 41mUnited Airlines
Deal found 7/29$219
This American Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/143:54 pmDEN - PIA
1 stop7h 05mAmerican Airlines
Tue 8/194:15 pmPIA - DEN
1 stop7h 40mAmerican Airlines
Deal found 7/29$239
This United Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2312:02 pmCOS - PIA
1 stop7h 50mUnited Airlines
Tue 8/268:45 amPIA - COS
1 stop5h 29mUnited Airlines
Deal found 7/28$249
This Mytrip deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1410:15 amDEN - PIA
3 stops24h 32mMultiple Airlines
Mon 8/184:16 pmPIA - DEN
Nonstop2h 25mMultiple Airlines
Deal found 7/30$321
This American Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/185:24 pmCOS - PIA
1 stop4h 52mAmerican Airlines
Sat 8/236:00 amPIA - COS
1 stop6h 37mAmerican Airlines
Deal found 7/30$329
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/101:37 pmGJT - PIA
1 stop6h 19mUnited Airlines
Sat 12/1310:45 amPIA - GJT
2 stops10h 40mUnited Airlines
Deal found 7/29$385
This American Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/44:40 pmGJT - PIA
1 stop5h 43mAmerican Airlines
Mon 9/86:25 pmPIA - GJT
2 stops17h 51mAmerican Airlines
Deal found 7/30$404
This United Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/171:43 pmMTJ - PIA
2 stops7h 32mUnited Airlines
Sat 9/208:10 amPIA - MTJ
2 stops7h 18mUnited Airlines
Deal found 7/30$451

Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado to Peoria that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 31, 2025.
Use the filters below to find and compare flights from Colorado to Peoria that are best for you.

Fly from

Colorado

Fly to

Peoria

Route

Depart

Return

Price

DenverPeoria

DEN - PIA

DENPIA

Denver Intl

Fri 11/14

5:50 pm-8:47 pm

Nonstop1h 57m

Greater Peoria

Mon 11/17

12:09 pm-1:34 pm

Nonstop2h 25m

$113

DenverPeoria

DEN - PIA

DENPIA

Denver Intl

Sat 8/23

2:45 pm-8:52 pm

1 stop5h 07m

Greater Peoria

Mon 8/25

8:45 am-10:26 am

Nonstop2h 41m

$219

DenverPeoria

DEN - PIA

DENPIA

Denver Intl

Thu 8/14

3:54 pm-11:59 pm

1 stop7h 05m

Greater Peoria

Tue 8/19

4:15 pm-10:55 pm

1 stop7h 40m

$239

Colorado SpringsPeoria

COS - PIA

COSPIA

Colorado Springs

Sat 8/23

12:02 pm-8:52 pm

1 stop7h 50m

Greater Peoria

Tue 8/26

8:45 am-1:14 pm

1 stop5h 29m

$249

DenverPeoria

DEN - PIA

DENPIA

Denver Intl

Thu 8/14

10:15 am-11:47 am

3 stops24h 32m

Greater Peoria

Mon 8/18

4:16 pm-5:41 pm

Nonstop2h 25m

$321

Colorado SpringsPeoria

COS - PIA

COSPIA

Colorado Springs

Mon 8/18

5:24 pm-11:16 pm

1 stop4h 52m

Greater Peoria

Sat 8/23

6:00 am-11:37 am

1 stop6h 37m

$329

Grand JunctionPeoria

GJT - PIA

GJTPIA

Grand Junction Regnl

Wed 12/10

1:37 pm-8:56 pm

1 stop6h 19m

Greater Peoria

Sat 12/13

10:45 am-8:25 pm

2 stops10h 40m

$385

Grand JunctionPeoria

GJT - PIA

GJTPIA

Grand Junction Regnl

Thu 9/4

4:40 pm-11:23 pm

1 stop5h 43m

Greater Peoria

Mon 9/8

6:25 pm-11:16 am

2 stops17h 51m

$404

MontrosePeoria

MTJ - PIA

MTJPIA

Montrose County

Wed 9/17

1:43 pm-10:15 pm

2 stops7h 32m

Greater Peoria

Sat 9/20

8:10 am-2:28 pm

2 stops7h 18m

$451

DenverPeoria

DEN - PIA

DENPIA

Denver Intl

Fri 9/12

5:24 pm-8:24 pm

Nonstop2h 00m

$99

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 13 results
1
2

Best time to book a flight from Colorado to Peoria

Have a flexible travel schedule? Discover the best time to fly to Peoria from Colorado with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Colorado to Peoria, Illinois?

Currently, August is the cheapest month in which you can book a flight from Colorado to Peoria, Illinois (average of $318). Flying from Colorado to Peoria, Illinois in October is currently the most expensive (average of $425). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CO to PIA?

Find hourly flight availability from Colorado to Peoria. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 31, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Colorado to Peoria, Illinois as you normally would.

Weekly flight availability from Colorado to Peoria, Illinois

Explore weekly flight availability from Colorado to Peoria. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 31, 2025.

The most flights from USCO to PIA are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

Reviews of airlines servicing Peoria

Get insights into the airlines that provide service to Peoria. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Peoria. Reviews last updated July 31, 2025.
Get a feel of what it's like to fly with United Airlines, American Airlines, and Allegiant Air from Colorado to Peoria by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,900 reviews

Boarding

7.7

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,900 reviews
United Airlines
7.4
Good
8,900 reviews

Boarding

7.7

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,900 reviews

Boarding

7.7

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
Allegiant Air
7.2
Good
702 reviews
United Airlines
7.4
Good
8,900 reviews

Boarding

7.7

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Colorado to Peoria. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Peoria from Colorado?

    Located just 6.0 mi from the city center, Greater Peoria (PIA) is the airport most travelers will use when flying to Peoria from Colorado.

  • How popular is this Colorado to Peoria, Illinois flight route?

    Flights from Colorado to Greater Peoria have been viewed 1 times in the past calendar month.

  • What are the cheapest airlines to fly from Colorado to Peoria, Illinois one-way?

    The cheapest airline one-way is Allegiant Air, with whom users have recently found tickets for as low as $99. However, be on the lookout for offers from United Airlines and American Airlines, as they are both options that can get you from Colorado to Peoria, Illinois for a low price.

  • What are the most popular routes from Colorado to Peoria, Illinois?

    The most popular route from Colorado to Peoria, Illinois is Denver Intl - Greater Peoria. You may also consider Colorado Springs - Greater Peoria or Grand Junction Regnl - Greater Peoria.

  • What are the most reliable airlines from Colorado to Peoria, Illinois?

    Consider SkyWest Airlines (50%), United Airlines (50%) or Allegiant Air (43%) when booking your flight. These represent the most reliable airlines when flying from Colorado to Peoria, Illinois.

  • What are the cheapest flights from Colorado to Peoria, Illinois?

    While on average a flight from Colorado to Peoria, Illinois is generally $223, our data shows the cheapest flight currently is $69. When looking at the most popular route, (Denver Intl - Greater Peoria), you can expect to pay $113 for that flight.

  • Can I find deals for flights from Colorado to Peoria that include hotel bookings?

    Yes. In addition to deals on Colorado to Peoria flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Colorado to Peoria?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Colorado to Peoria.

  • Can I find deals for business class flights from Colorado to Peoria?

    Yes. Cheapflights offers flight deals from Colorado to Peoria by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Colorado to Peoria, Illinois?

    Currently, August is the cheapest month in which you can book a flight from Colorado to Peoria, Illinois (average of $318). Flying from Colorado to Peoria, Illinois in October is currently the most expensive (average of $425). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Colorado to Peoria

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Colorado to Peoria

Discover the top 3 airlines that operate flights from Colorado to Peoria. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$84Average$164FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$228Average$344FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$229Average$437FlexibilityNo cancel feeOn-time69%

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