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$70+ Cheap flights from Peoria, IL (PIA) to Colorado

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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — DEN
ส.ค. 23 — ส.ค. 301
ส. 8/23
ส. 8/30
1 adult, Economy
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Cheap flight deals from Peoria to Colorado

Keep the following information in mind while searching for Peoria to Colorado flight deals. Data was last updated สิงหาคม 18, 2025.

Round-trip from

$102
(Cheapflightsfares)

One-way from

$70
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$229

Good round-trip deal

$195 or less

Good one-way deal

$201 or less
From Greater Peoria to Colorado
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One-way flight from Greater Peoria to Colorado
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Highest demand for flights based on searches. 16% potential increase in price ($46 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Greater Peoria to Colorado.
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Price to beat on a one-way flight from Greater Peoria to Colorado.
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Find flight deals from Peoria to Colorado

Cheapest flights from Peoria to Colorado
Explore the most affordable flight options available from Peoria to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on สิงหาคม 18, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 8/16. 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.
จ. 9/83:18 pmPIA - DEN
Nonstop2h 16mAllegiant Air
ศ. 9/195:24 pmDEN - PIA
Nonstop2h 00mAllegiant Air
Deal found 8/16$102
This Cheapflightsfares deal was found by Cheapflights users on 8/17. 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.
ศ. 11/73:35 pmPIA - DEN
Nonstop2h 25mAllegiant Air
จ. 11/102:24 pmDEN - PIA
Nonstop1h 57mAllegiant Air
Deal found 8/17$153
This Cheapflightsfares deal was found by Cheapflights users on 8/18. 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.
จ. 8/252:20 pmPIA - DEN
Nonstop2h 25mAllegiant Air
ศ. 8/294:45 pmDEN - PIA
Nonstop2h 00mAllegiant Air
Deal found 8/18$184
This Kiwi.com deal was found by Cheapflights users on 8/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 9/89:14 pmPIA - DEN
1 stop13h 19mMultiple Airlines
ศ. 9/195:24 pmDEN - PIA
Nonstop2h 00mMultiple Airlines
Deal found 8/16$190
This United Airlines deal was found by Cheapflights users on 8/18. 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.
ศ. 9/128:45 amPIA - DEN
Nonstop2h 41mUnited Airlines
จ. 9/155:59 pmDEN - PIA
Nonstop2h 13mUnited Airlines
Deal found 8/18$209
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ศ. 10/34:35 pmPIA - DEN
Nonstop2h 16mMultiple Airlines
อา. 10/58:59 pmDEN - PIA
1 stop13h 10mMultiple Airlines
Deal found 8/18$218
This American Airlines deal was found by Cheapflights users on 8/17. 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.
จ. 9/83:34 pmPIA - DEN
1 stop7h 28mAmerican Airlines
ศ. 9/193:08 pmDEN - PIA
1 stop7h 03mAmerican Airlines
Deal found 8/17$229
This Kiwi.com deal was found by Cheapflights users on 8/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 10/2011:59 amPIA - DEN
Nonstop2h 16mMultiple Airlines
ส. 10/258:22 pmDEN - PIA
2 stops35h 47mMultiple Airlines
Deal found 8/16$234
This American Airlines deal was found by Cheapflights users on 8/15. 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.
พฤ. 9/45:11 pmPIA - COS
1 stop5h 57mAmerican Airlines
จ. 9/85:16 pmCOS - PIA
1 stop5h 07mAmerican Airlines
Deal found 8/15$254
This United Airlines deal was found by Cheapflights users on 8/18. 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.
อ. 9/23:55 pmPIA - COS
1 stop6h 59mUnited Airlines
ส. 9/612:02 pmCOS - PIA
1 stop7h 50mUnited Airlines
Deal found 8/18$329
This United Airlines deal was found by Cheapflights users on 8/16. 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.
ส. 9/66:55 amPIA - MTJ
2 stops6h 52mUnited Airlines
ส. 9/131:43 pmMTJ - PIA
1 stop6h 29mUnited Airlines
Deal found 8/16$370
This United Airlines deal was found by Cheapflights users on 8/18. 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.
ส. 10/2510:48 amPIA - GJT
2 stops10h 24mUnited Airlines
ส. 11/11:35 pmGJT - PIA
1 stop6h 21mUnited Airlines
Deal found 8/18$385

Cheapflights Fare Finder

 
Customize your flight search to find flights from Peoria to Colorado 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 สิงหาคม 18, 2025.
Use the filters below to find and compare flights from Peoria to Colorado that are best for you.

Fly from

Peoria

Fly to

Colorado

Route

Depart

Return

Price

PeoriaDenver

PIA - DEN

PIADEN

Greater Peoria

จ. 9/8

3:18 pm-4:34 pm

Nonstop2h 16m

Denver Intl

ศ. 9/19

5:24 pm-8:24 pm

Nonstop2h 00m

$102

PeoriaDenver

PIA - DEN

PIADEN

Greater Peoria

ศ. 11/7

3:35 pm-5:00 pm

Nonstop2h 25m

Denver Intl

จ. 11/10

2:24 pm-5:21 pm

Nonstop1h 57m

$153

PeoriaDenver

PIA - DEN

PIADEN

Greater Peoria

จ. 9/8

9:14 pm-9:33 am

1 stop13h 19m

Denver Intl

ศ. 9/19

5:24 pm-8:24 pm

Nonstop2h 00m

$190

PeoriaDenver

PIA - DEN

PIADEN

Greater Peoria

จ. 9/8

3:18 pm-4:34 pm

Nonstop2h 16m

Denver Intl

ศ. 9/12

5:24 pm-8:24 pm

Nonstop2h 00m

$197

PeoriaDenver

PIA - DEN

PIADEN

Greater Peoria

ศ. 9/12

8:45 am-10:26 am

Nonstop2h 41m

Denver Intl

จ. 9/15

5:59 pm-9:12 pm

Nonstop2h 13m

$209

PeoriaDenver

PIA - DEN

PIADEN

Greater Peoria

ศ. 10/3

4:35 pm-5:51 pm

Nonstop2h 16m

Denver Intl

อา. 10/5

8:59 pm-11:09 am

1 stop13h 10m

$218

PeoriaDenver

PIA - DEN

PIADEN

Greater Peoria

ศ. 9/19

6:25 pm-10:16 pm

1 stop4h 51m

Denver Intl

ส. 9/20

8:10 am-4:38 pm

1 stop7h 28m

$229

PeoriaDenver

PIA - DEN

PIADEN

Greater Peoria

ส. 9/6

6:55 am-10:35 am

1 stop4h 40m

Denver Intl

ส. 9/13

2:45 pm-8:52 pm

1 stop5h 07m

$229

PeoriaColorado Springs

PIA - COS

PIACOS

Greater Peoria

พฤ. 9/4

5:11 pm-10:08 pm

1 stop5h 57m

Colorado Springs

จ. 9/8

5:16 pm-11:23 pm

1 stop5h 07m

$254

PeoriaColorado Springs

PIA - COS

PIACOS

Greater Peoria

อ. 9/2

3:55 pm-9:54 pm

1 stop6h 59m

Colorado Springs

ส. 9/6

12:02 pm-8:52 pm

1 stop7h 50m

$329

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

Showing 1-10 of 30 results
1
2
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Best time to book a flight from Peoria to Colorado

Have a flexible travel schedule? Discover the best time to fly to Colorado from Peoria 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 Peoria to Colorado

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

Currently, October is the cheapest month in which you can book a flight from Peoria, Illinois to Colorado (average of $197). Flying from Peoria, Illinois to Colorado in March is currently the most expensive (average of $278). 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 PIA to CO?

Find hourly flight availability from Peoria to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated สิงหาคม 18, 2025.

When flying from Peoria, Illinois to Colorado, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Peoria, Illinois to Colorado?

Reviews of airlines servicing Colorado

Get insights into the airlines that provide service to Colorado. 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 Colorado. Reviews last updated สิงหาคม 18, 2025.
See what other customers who have flown with United Airlines, American Airlines, and Allegiant Air from Peoria to Colorado have to say. 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
8,925 reviews

Entertainment

7.1

Food

6.6

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Oct 2024

EWR - DEN

Terribly delayed flight, missed ongoing flight, hotel very downmarket Food voucher not accepted in hotel
United Airlines
7.4
Good
8,925 reviews
United Airlines
7.4
Good
8,925 reviews

Entertainment

7.1

Food

6.6

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Oct 2024

EWR - DEN

Terribly delayed flight, missed ongoing flight, hotel very downmarket Food voucher not accepted in hotel
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,925 reviews

Entertainment

7.1

Food

6.6

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Oct 2024

EWR - DEN

Terribly delayed flight, missed ongoing flight, hotel very downmarket Food voucher not accepted in hotel
Allegiant Air
7.2
Good
701 reviews
United Airlines
7.4
Good
8,925 reviews

Entertainment

7.1

Food

6.6

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Oct 2024

EWR - DEN

Terribly delayed flight, missed ongoing flight, hotel very downmarket Food voucher not accepted in hotel

Related info for your journey

Find useful and relevant information for your journey from Peoria to Colorado. 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 from for flights from Peoria to Colorado?

    Most people fly from Greater Peoria (PIA) if they book a flight from Peoria to Colorado. Greater Peoria is conveniently located just 6.0 mi from Peoria’s city center.

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

    This flight path from Greater Peoria to Colorado was viewed by 7 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Peoria, Illinois to Colorado?

    Departing from Peoria, Illinois to Colorado will take you 2h 16m. Peoria, Illinois and Colorado are separated by a distance of 790 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Most travelers choose Greater Peoria - Denver Intl, Greater Peoria - Colorado Springs or Greater Peoria - Grand Junction Regnl when deciding on the best route from Peoria, Illinois to Colorado.

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

    No one likes to see their flight delayed. When booking a flight from Peoria, Illinois to Colorado consider choosing SkyWest Airlines (77%), United Airlines (77%) or Allegiant Air (67%) as they are the most reliable in getting you off to your destination on time.

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

    While on average a flight from Peoria, Illinois to Colorado is generally $324, our data shows the cheapest flight currently is $46. When looking at the most popular route, (Greater Peoria - Denver Intl), you can expect to pay $113 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Peoria to Colorado 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 Peoria, Illinois to Colorado?

    Currently, October is the cheapest month in which you can book a flight from Peoria, Illinois to Colorado (average of $197). Flying from Peoria, Illinois to Colorado in March is currently the most expensive (average of $278). 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 Peoria to Colorado

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

Discover the top 3 airlines that operate flights from Peoria to Colorado. 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 สิงหาคม 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$81Average$143FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$223Average$393FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$228Average$349FlexibilityNo cancel feeOn-time71%

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