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Peoria

$86+ Cheap flights from Denver to Peoria, IL (DEN - 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 12/15. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — PIA
Dec 31 — Jan 71
Wed 12/31
Wed 1/7
1 adult, Economy
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Cheapflights Tip: The best prices from Denver Intl to Greater Peoria are usually found in August or February, booked 79 days in advance, depart on a Friday or Monday and return on a Friday

Find flight deals from Denver to Peoria

Cheapest flights from Denver to Peoria
Explore the most affordable flight options available from Denver to Peoria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 1, 2025.

This Gotogate deal was found by Cheapflights users on 12/1. 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.
Fri 12/55:24 pmDEN - PIA
Nonstop1h 57mAllegiant Air
Mon 12/83:08 pmPIA - DEN
Nonstop2h 26mAllegiant Air
Deal found 12/1$122
This Cheapflightsfares deal was found by Cheapflights users on 11/28. 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.
Mon 12/295:54 pmDEN - PIA
Nonstop1h 57mAllegiant Air
Mon 1/53:38 pmPIA - DEN
Nonstop2h 26mAllegiant Air
Deal found 11/28$155
This Cheapflightsfares deal was found by Cheapflights users on 12/1. 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 12/55:24 pmDEN - PIA
Nonstop1h 57mAllegiant Air
Fri 12/123:08 pmPIA - DEN
Nonstop2h 26mAllegiant Air
Deal found 12/1$168
This Cheapflightsfares deal was found by Cheapflights users on 11/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/14:58 pmDEN - PIA
Nonstop2h 00mAllegiant Air
Fri 12/53:08 pmPIA - DEN
Nonstop2h 26mAllegiant Air
Deal found 11/30$205
This United Airlines deal was found by Cheapflights users on 11/29. 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.
Mon 12/295:30 pmDEN - PIA
Nonstop2h 17mUnited Airlines
Mon 1/1210:45 amPIA - DEN
1 stop5h 06mUnited Airlines
Deal found 11/29$219
This Kiwi.com deal was found by Cheapflights users on 12/1. 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.
Fri 12/55:24 pmDEN - PIA
Nonstop1h 57mMultiple Airlines
Mon 12/89:41 pmPIA - DEN
1 stop25h 48mMultiple Airlines
Deal found 12/1$235
This United Airlines deal was found by Cheapflights users on 11/29. 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.
Sun 12/286:00 amDEN - PIA
1 stop7h 08mUnited Airlines
Sun 1/45:19 pmPIA - DEN
1 stop7h 19mUnited Airlines
Deal found 11/29$257
This Kiwi.com deal was found by Cheapflights users on 12/1. 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.
Wed 12/106:30 amDEN - PIA
1 stop11h 03mMultiple Airlines
Sat 12/135:53 pmPIA - DEN
2 stops28h 45mMultiple Airlines
Deal found 12/1$260
This Kiwi.com deal was found by Cheapflights users on 11/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/155:24 pmDEN - PIA
Nonstop1h 57mMultiple Airlines
Mon 12/299:41 pmPIA - DEN
2 stops27h 26mMultiple Airlines
Deal found 11/29$263

Cheap flight deals from Denver to Peoria

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Peoria (PIA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 1, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$155
(Cheapflightsfares)

One-way from

$86
(Cheapflightsfares)

Popular in

December

Cheapest in

August

Average price

$411

Good round-trip deal

$129 or less

Good one-way deal

$97 or less
Provider with most accurate pricing for Denver Intl-Greater Peoria flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Greater Peoria flights.
Search Deals
From Denver Intl to Greater Peoria
Search Deals
One-way flight from Denver Intl to Greater Peoria
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($68 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Denver Intl to Greater Peoria.
Search Deals
Price to beat on a one-way flight from Denver Intl to Greater Peoria.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver 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 December 1, 2025.
Use the filters below to find and compare flights from Denver to Peoria that are best for you.

Fly from

Denver

Fly to

Peoria

Route

Depart

Return

Price

DenverPeoria

DEN - PIA

DENPIA

Denver Intl

Fri 1/16

6:00 am-12:38 pm

1 stop5h 38m

Greater Peoria

Sun 1/18

8:35 am-10:20 am

Nonstop2h 45m

$219

DenverPeoria

DEN - PIA

DENPIA

Denver Intl

Wed 2/18

6:00 am-2:10 pm

1 stop7h 10m

Greater Peoria

Mon 2/23

5:25 pm-10:56 pm

1 stop6h 31m

$229

DenverPeoria

DEN - PIA

DENPIA

Denver Intl

Thu 12/25

5:30 pm-8:47 pm

Nonstop2h 17m

Greater Peoria

Sun 1/4

5:19 pm-11:38 pm

1 stop7h 19m

$289

DenverPeoria

DEN - PIA

DENPIA

Denver Intl

Fri 2/20

6:00 am-12:43 pm

1 stop5h 43m

Greater Peoria

Sun 2/22

5:25 pm-10:56 pm

1 stop6h 31m

$299

DenverPeoria

DEN - PIA

DENPIA

Denver Intl

Fri 2/13

6:00 am-12:43 pm

1 stop5h 43m

Greater Peoria

Sun 2/15

5:25 pm-10:56 pm

1 stop6h 31m

$299

DenverPeoria

DEN - PIA

DENPIA

Denver Intl

Thu 12/25

5:30 pm-8:47 pm

Nonstop2h 17m

Greater Peoria

Fri 1/2

5:19 pm-11:38 pm

1 stop7h 19m

$344

DenverPeoria

DEN - PIA

DENPIA

Denver Intl

Fri 1/16

6:00 am-12:38 pm

1 stop5h 38m

Greater Peoria

Mon 1/19

3:00 pm-9:59 pm

1 stop7h 59m

$354

DenverPeoria

DEN - PIA

DENPIA

Denver Intl

Mon 12/15

5:24 pm-8:21 pm

Nonstop1h 57m

$86

DenverPeoria

DEN - PIA

DENPIA

Denver Intl

Sat 1/17

7:50 am-9:43 pm

2 stops12h 53m

$183

DenverPeoria

DEN - PIA

DENPIA

Denver Intl

Mon 2/2

7:10 am-8:39 pm

1 stop12h 29m

$211

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/30

Showing 1-10 of 17 results
1
2

Compare providers for flights from Denver to Peoria

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Peoria in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Denver-Peoria, Illinois flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Denver-Peoria, Illinois flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Denver-Peoria, Illinois flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-Peoria, Illinois flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Peoria, Illinois flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Denver to Peoria

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

How far ahead should I book a flight from Denver to Peoria, Illinois?

Use this chart to determine the optimal time to book a round-trip flight from Denver to Peoria. Price data was last updated on November 28, 2025.

To ensure you get the cheapest price possible for a flight from Denver to Peoria, Illinois, you should look to book at least 78 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, July is the cheapest month in which you can book a flight from Denver to Peoria, Illinois (average of $46). Flying from Denver to Peoria, Illinois in March is currently the most expensive (average of $133). 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 DEN to PIA?

Find hourly flight availability from Denver 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 December 1, 2025.

One of the essential ways to save on airfare from Denver to Peoria, Illinois is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at noon could potentially save you up to 65% on airfare.

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

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 December 1, 2025.
Get a feel of what it's like to fly with United Airlines, American Airlines, and Allegiant Air from Denver to Peoria by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,059 reviews

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

Overall

7.4

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
9,059 reviews
United Airlines
7.4
Good
9,059 reviews

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

Overall

7.4

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
11,040 reviews
United Airlines
7.4
Good
9,059 reviews

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

Overall

7.4

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
699 reviews
United Airlines
7.4
Good
9,059 reviews

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

Overall

7.4

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 Denver to Peoria. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Denver to Peoria?

    If you wish to fly to Peoria from Denver, then you need to book flights from Denver Intl to Greater Peoria. There is 1 flight from Denver Intl (DEN) to Greater Peoria (PIA) per day to choose from. Flights to Peoria from Denver Intl are available from 3 different airlines, which means you should have some options if you want to compare airfare deals. 1h 57m is how long a nonstop flight from Denver to Greater Peoria typically takes.

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

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

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

    Departing from Denver to Peoria, Illinois will take you 5h 38m. Airlines will cover a distance of 790 mi.

  • What are the cheapest airlines flying from Denver to Peoria, Illinois round-trip?

    Flying on Allegiant Air is currently your cheapest option to Peoria, Illinois, with prices starting at $77. Additional round-trip tickets that might be worth considering are offered by United Airlines and American Airlines, with the lowest prices starting at $219 and $228, respectively. Users have found that Allegiant Air is 70% cheaper than the other options available to this destination.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Denver to Peoria, Illinois on time: Allegiant Air (75%), SkyWest Airlines (59%), United Airlines (59%).

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

    Looking for the cheapest flight from Denver to Peoria, Illinois? While on average our users pay $146, our data indicates the cheapest price to be $59. The most popular route (Denver Intl - Greater Peoria), is priced around $155.

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

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

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

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

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

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

    Currently, July is the cheapest month in which you can book a flight from Denver to Peoria, Illinois (average of $46). Flying from Denver to Peoria, Illinois in March is currently the most expensive (average of $133). 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 Denver 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 Denver to Peoria

Discover the top 3 airlines that operate flights from Denver 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 December 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$77Average$143FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$219Average$355FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$228Average$374FlexibilityNo cancel feeOn-time71%

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