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$69+ 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 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — DEN
Nov 13 — Nov 201
Thu 11/13
Thu 11/20
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 October 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$113
(Gotogate)

One-way from

$69
(Booking.com)

Popular in

July

Cheapest in

January

Average price

$223

Good round-trip deal

$250 or less

Good one-way deal

$243 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. 16% potential increase in price ($49 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 14, 2025.

This Gotogate deal was found by Cheapflights users on 10/12. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/279:59 amPIA - DEN
Nonstop2h 16mAllegiant Air
Fri 10/316:35 pmDEN - PIA
Nonstop1h 51mAllegiant Air
Deal found 10/12$113
This Booking.com deal was found by Cheapflights users on 10/12. 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.
Fri 12/53:08 pmPIA - DEN
Nonstop2h 26mAllegiant Air
Fri 12/125:24 pmDEN - PIA
Nonstop1h 57mAllegiant Air
Deal found 10/12$127
This Cheapflightsfares deal was found by Cheapflights users on 10/12. 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.
Mon 11/1012:09 pmPIA - DEN
Nonstop2h 25mAllegiant Air
Fri 11/145:50 pmDEN - PIA
Nonstop1h 57mAllegiant Air
Deal found 10/12$140
This Cheapflightsfares deal was found by Cheapflights users on 10/12. 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.
Mon 11/1012:09 pmPIA - DEN
Nonstop2h 25mAllegiant Air
Mon 11/172:24 pmDEN - PIA
Nonstop1h 57mAllegiant Air
Deal found 10/12$189
This Kiwi.com deal was found by Cheapflights users on 10/12. 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.
Mon 10/2712:56 pmPIA - DEN
1 stop16h 03mMultiple Airlines
Fri 10/316:35 pmDEN - PIA
Nonstop1h 51mMultiple Airlines
Deal found 10/12$201
This United Airlines deal was found by Cheapflights users on 10/12. 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 12/118:40 amPIA - DEN
Nonstop2h 52mUnited Airlines
Sun 12/145:45 pmDEN - PIA
Nonstop2h 11mUnited Airlines
Deal found 10/12$209
This Booking.com deal was found by Cheapflights users on 10/12. 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.
Fri 10/244:35 pmPIA - DEN
Nonstop2h 16mAllegiant Air
Mon 10/2712:05 pmDEN - PIA
Nonstop1h 51mAllegiant Air
Deal found 10/12$212
This Cheapflightsfares deal was found by Cheapflights users on 10/12. 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 11/73:35 pmPIA - DEN
Nonstop2h 25mAllegiant Air
Mon 11/102:24 pmDEN - PIA
Nonstop1h 57mAllegiant Air
Deal found 10/12$215
This Kiwi.com deal was found by Cheapflights users on 10/12. 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.
Mon 11/101:05 pmPIA - DEN
2 stops50h 44mMultiple Airlines
Fri 11/145:50 pmDEN - PIA
Nonstop1h 57mMultiple Airlines
Deal found 10/12$216
This American Airlines deal was found by Cheapflights users on 10/13. 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 11/106:40 amPIA - COS
1 stop6h 08mAmerican Airlines
Mon 11/175:17 pmCOS - PIA
1 stop4h 49mAmerican Airlines
Deal found 10/13$249
This United Airlines deal was found by Cheapflights users on 10/13. 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 10/288:43 amPIA - COS
1 stop6h 46mUnited Airlines
Sat 11/19:22 amCOS - PIA
1 stop6h 18mUnited Airlines
Deal found 10/13$329
This United Airlines deal was found by Cheapflights users on 10/11. 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.
Mon 11/106:45 amPIA - COS
1 stop5h 41mUnited Airlines
Thu 11/1312:54 pmCOS - PIA
1 stop7h 02mUnited Airlines
Deal found 10/11$415

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 October 14, 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

Fri 12/5

3:08 pm-4:34 pm

Nonstop2h 26m

Denver Intl

Fri 12/12

5:24 pm-8:21 pm

Nonstop1h 57m

$127

PeoriaDenver

PIA - DEN

PIADEN

Greater Peoria

Mon 11/10

12:09 pm-1:34 pm

Nonstop2h 25m

Denver Intl

Mon 11/17

2:24 pm-5:21 pm

Nonstop1h 57m

$189

PeoriaDenver

PIA - DEN

PIADEN

Greater Peoria

Tue 11/11

8:43 am-10:35 am

Nonstop2h 52m

Denver Intl

Sat 11/15

5:45 pm-8:56 pm

Nonstop2h 11m

$209

PeoriaDenver

PIA - DEN

PIADEN

Greater Peoria

Fri 12/5

9:41 pm-12:09 pm

2 stops15h 28m

Denver Intl

Fri 12/12

5:24 pm-8:21 pm

Nonstop1h 57m

$223

PeoriaDenver

PIA - DEN

PIADEN

Greater Peoria

Fri 12/19

8:02 pm-1:48 am

1 stop6h 46m

Denver Intl

Thu 12/25

8:07 am-5:41 pm

1 stop8h 34m

$229

PeoriaColorado Springs

PIA - COS

PIACOS

Greater Peoria

Mon 11/10

6:40 am-11:48 am

1 stop6h 08m

Colorado Springs

Mon 11/17

5:17 pm-11:06 pm

1 stop4h 49m

$249

PeoriaDenver

PIA - DEN

PIADEN

Greater Peoria

Wed 11/26

5:23 pm-11:15 pm

1 stop6h 52m

Denver Intl

Wed 12/3

5:45 pm-8:56 pm

Nonstop2h 11m

$289

PeoriaDenver

PIA - DEN

PIADEN

Greater Peoria

Thu 11/13

8:43 am-10:35 am

Nonstop2h 52m

Denver Intl

Sun 11/16

6:00 am-12:39 pm

1 stop5h 39m

$289

PeoriaMontrose

PIA - MTJ

PIAMTJ

Greater Peoria

Sat 4/4

10:55 am-8:08 pm

2 stops10h 13m

Montrose County

Wed 4/8

1:35 pm-9:16 pm

2 stops6h 41m

$291

PeoriaDenver

PIA - DEN

PIADEN

Greater Peoria

Tue 10/28

6:45 am-10:35 am

1 stop4h 50m

Denver Intl

Sat 11/1

6:00 am-2:33 pm

1 stop7h 33m

$319

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/13

Showing 1-10 of 28 results
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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, September is the cheapest month in which you can book a flight from Peoria, Illinois to Colorado (average of $49). Flying from Peoria, Illinois to Colorado in March is currently the most expensive (average of $165). 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 October 14, 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.

Weekly flight availability from Peoria, Illinois to Colorado

Explore weekly flight availability from Peoria to Colorado. 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 October 14, 2025.

The most flights from PIA to USCO are scheduled on a Monday (2 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (1 on average).

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 October 14, 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
8,975 reviews

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
United Airlines
7.4
Good
8,975 reviews
United Airlines
7.4
Good
8,975 reviews

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
American Airlines
7.2
Good
11,043 reviews
United Airlines
7.4
Good
8,975 reviews

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
Allegiant Air
7.2
Good
693 reviews
United Airlines
7.4
Good
8,975 reviews

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.

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 12 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 26m. 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 Allegiant Air (93%), SkyWest Airlines (80%) or United Airlines (80%) 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 $374, our data shows the cheapest flight currently is $91. When looking at the most popular route, (Greater Peoria - Denver Intl), you can expect to pay $118 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, September is the cheapest month in which you can book a flight from Peoria, Illinois to Colorado (average of $49). Flying from Peoria, Illinois to Colorado in March is currently the most expensive (average of $165). 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 October 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$78Average$141FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$219Average$354FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$228Average$347FlexibilityNo cancel feeOn-time71%

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