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$58+ 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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — DEN
May 5 — May 121
Mon 5/5
Mon 5/12
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 April 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$125
(Mytrip)

One-way from

$103
(Kiwi.com)

Popular in

October

Cheapest in

January

Average price

$256

Good round-trip deal

$190 or less

Good one-way deal

$159 or less
Provider with most accurate pricing for Greater Peoria-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for Greater Peoria-Denver Intl flights.
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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. 14% potential increase in price ($36 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 30, 2025.

This Booking.com deal was found by Cheapflights users on 4/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/223:18 pmPIA - DEN
Nonstop2h 16mAllegiant Air
Mon 9/295:24 pmDEN - PIA
Nonstop2h 00mAllegiant Air
Deal found 4/28$122
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Thu 7/39:00 amPIA - DEN
Nonstop2h 30mUnited Airlines
Wed 7/97:50 amDEN - PIA
1 stop6h 13mUnited Airlines
Deal found 4/29$219
This American Airlines deal was found by Cheapflights users on 4/29. 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 9/44:36 pmPIA - DEN
1 stop6h 08mAmerican Airlines
Mon 9/84:36 pmDEN - PIA
1 stop5h 58mAmerican Airlines
Deal found 4/29$229
This Mytrip deal was found by Cheapflights users on 4/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/123:08 pmPIA - DEN
Nonstop2h 19mMultiple Airlines
Sun 6/810:21 amDEN - PIA
3 stops27h 49mMultiple Airlines
Deal found 4/28$298
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Tue 10/285:15 pmPIA - COS
2 stops7h 44mUnited Airlines
Wed 11/55:30 amCOS - PIA
2 stops7h 11mUnited Airlines
Deal found 4/28$309
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/96:00 amPIA - COS
1 stop6h 31mAmerican Airlines
Fri 6/135:01 pmCOS - PIA
1 stop16h 49mAmerican Airlines
Deal found 4/28$402

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 April 30, 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

Mon 9/22

3:18 pm-4:34 pm

Nonstop2h 16m

Denver Intl

Mon 9/29

5:24 pm-8:24 pm

Nonstop2h 00m

$122

PeoriaDenver

PIA - DEN

PIADEN

Greater Peoria

Thu 7/3

9:00 am-10:30 am

Nonstop2h 30m

Denver Intl

Wed 7/9

7:50 am-3:03 pm

1 stop6h 13m

$219

PeoriaDenver

PIA - DEN

PIADEN

Greater Peoria

Thu 9/4

4:36 pm-9:44 pm

1 stop6h 08m

Denver Intl

Mon 9/8

4:36 pm-11:34 pm

1 stop5h 58m

$229

PeoriaDenver

PIA - DEN

PIADEN

Greater Peoria

Mon 5/12

3:08 pm-4:27 pm

Nonstop2h 19m

Denver Intl

Sun 6/8

10:21 am-3:10 pm

3 stops27h 49m

$298

PeoriaColorado Springs

PIA - COS

PIACOS

Greater Peoria

Tue 5/13

2:36 pm-9:36 pm

2 stops8h 00m

Colorado Springs

Sat 5/17

12:55 pm-9:33 pm

1 stop7h 38m

$354

PeoriaColorado Springs

PIA - COS

PIACOS

Greater Peoria

Mon 6/9

6:00 am-11:31 am

1 stop6h 31m

Colorado Springs

Fri 6/13

5:01 pm-10:50 am

1 stop16h 49m

$402

PeoriaDenver

PIA - DEN

PIADEN

Greater Peoria

Mon 9/22

3:18 pm-4:34 pm

Nonstop2h 16m

$58

PeoriaDenver

PIA - DEN

PIADEN

Greater Peoria

Thu 6/12

4:06 pm-10:56 pm

1 stop7h 50m

$163

PeoriaDenver

PIA - DEN

PIADEN

Greater Peoria

Fri 5/16

4:14 pm-10:03 pm

1 stop6h 49m

$180

PeoriaDenver

PIA - DEN

PIADEN

Greater Peoria

Wed 6/25

8:47 am-10:17 am

Nonstop2h 30m

$224

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

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 April 30, 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.

Rainfall in Colorado by month

Plan your trip to Colorado by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Colorado ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Colorado when rainfall is around 0.5 in.

Temperature in Colorado by month

Plan your trip to Colorado by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Colorado, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 April 30, 2025.
Read reviews from past customers who have flown United Airlines, Allegiant Air and American Airlines from Peoria to Colorado. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,696 reviews

Food

6.6

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

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
8,696 reviews
United Airlines
7.4
Good
8,696 reviews

Food

6.6

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

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
7.3
Good
734 reviews
United Airlines
7.4
Good
8,696 reviews

Food

6.6

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

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
8,696 reviews

Food

6.6

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

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 4 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    The cheapest airline one-way is Allegiant Air, with whom users have recently found tickets for as low as $103. However, be on the lookout for offers from American Airlines and United Airlines, as they are both options that can get you from Peoria, Illinois to Colorado for a low price.

  • 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 - Montrose County 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 (88%), United Airlines (88%) or Allegiant Air (73%) 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 $343, our data shows the cheapest flight currently is $85. When looking at the most popular route, (Greater Peoria - Denver Intl), you can expect to pay $122 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.

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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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$92Average$154FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$208Average$358FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$216Average$384FlexibilityNo cancel feeOn-time69%

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