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Peoria

$64+ 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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — PIA
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
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 83 days in advance, depart on a Friday or Monday and return on a Friday

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 September 17, 2025.

Round-trip from

$219
(United Airlines)

One-way from

$64
(Cheapflightsfares)

Popular in

December

Cheapest in

August

Average price

$185

Good round-trip deal

$113 or less

Good one-way deal

$92 or less
From Denver Intl to Greater Peoria
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One-way flight from Denver Intl to Greater Peoria
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Highest demand for flights based on searches. 22% potential increase in price ($77 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Denver Intl to Greater Peoria.
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Price to beat on a one-way flight from Denver Intl to Greater Peoria.
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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 September 17, 2025.

This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/84:15 pmDEN - PIA
1 stop5h 00mUnited Airlines
Sun 10/128:39 amPIA - DEN
Nonstop2h 41mUnited Airlines
Deal found 9/15$219
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Wed 10/15:52 pmDEN - PIA
Nonstop2h 13mUnited Airlines
Mon 10/68:39 amPIA - DEN
Nonstop2h 41mUnited Airlines
Deal found 9/16$229
This Cheapflightsfares deal was found by Cheapflights users on 9/16. 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.
Mon 10/62:05 pmDEN - PIA
Nonstop1h 51mAllegiant Air
Fri 10/104:35 pmPIA - DEN
Nonstop2h 16mAllegiant Air
Deal found 9/16$278
This United Airlines deal was found by Cheapflights users on 9/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/135:45 pmDEN - PIA
Nonstop2h 11mUnited Airlines
Sun 1/48:35 amPIA - DEN
Nonstop2h 45mUnited Airlines
Deal found 9/17$279
This United Airlines deal was found by Cheapflights users on 9/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/164:10 pmDEN - PIA
1 stop4h 21mUnited Airlines
Sun 1/48:35 amPIA - DEN
Nonstop2h 45mUnited Airlines
Deal found 9/17$289
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/99:19 pmDEN - PIA
2 stops17h 26mMultiple Airlines
Mon 10/1310:22 pmPIA - DEN
1 stop10h 50mMultiple Airlines
Deal found 9/15$296
This United Airlines deal was found by Cheapflights users on 9/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/156:00 amDEN - PIA
1 stop4h 59mUnited Airlines
Mon 1/51:20 pmPIA - DEN
1 stop7h 26mUnited Airlines
Deal found 9/17$299
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/215:47 pmDEN - PIA
Nonstop2h 00mAllegiant Air
Sun 11/303:13 pmPIA - DEN
Nonstop2h 24mAllegiant Air
Deal found 9/15$301
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Wed 10/110:55 pmDEN - PIA
2 stops35h 36mMultiple Airlines
Mon 10/65:46 pmPIA - DEN
1 stop15h 26mMultiple Airlines
Deal found 9/16$302

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 September 17, 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

Wed 10/8

4:15 pm-10:15 pm

1 stop5h 00m

Greater Peoria

Sun 10/12

8:39 am-10:20 am

Nonstop2h 41m

$219

DenverPeoria

DEN - PIA

DENPIA

Denver Intl

Wed 10/1

5:52 pm-9:05 pm

Nonstop2h 13m

Greater Peoria

Mon 10/6

8:39 am-10:20 am

Nonstop2h 41m

$229

DenverPeoria

DEN - PIA

DENPIA

Denver Intl

Wed 12/17

5:45 pm-8:56 pm

Nonstop2h 11m

Greater Peoria

Sun 1/4

8:35 am-10:20 am

Nonstop2h 45m

$279

DenverPeoria

DEN - PIA

DENPIA

Denver Intl

Mon 12/15

6:00 am-11:59 am

1 stop4h 59m

Greater Peoria

Sun 1/4

8:35 am-10:20 am

Nonstop2h 45m

$289

DenverPeoria

DEN - PIA

DENPIA

Denver Intl

Sun 12/14

5:45 pm-8:56 pm

Nonstop2h 11m

Greater Peoria

Fri 1/2

5:19 pm-11:38 pm

1 stop7h 19m

$289

DenverPeoria

DEN - PIA

DENPIA

Denver Intl

Sat 12/13

6:00 am-11:59 am

1 stop4h 59m

Greater Peoria

Sun 1/4

5:19 pm-11:38 pm

1 stop7h 19m

$299

DenverPeoria

DEN - PIA

DENPIA

Denver Intl

Mon 10/6

7:40 am-7:32 am

2 stops22h 52m

Greater Peoria

Fri 10/10

10:22 pm-9:01 am

1 stop11h 39m

$304

DenverPeoria

DEN - PIA

DENPIA

Denver Intl

Wed 10/1

4:15 pm-10:15 pm

1 stop5h 00m

Greater Peoria

Sun 10/5

8:39 am-10:20 am

Nonstop2h 41m

$309

DenverPeoria

DEN - PIA

DENPIA

Denver Intl

Fri 10/3

4:15 pm-10:15 pm

1 stop5h 00m

Greater Peoria

Sat 10/4

6:55 am-10:35 am

1 stop4h 40m

$319

DenverPeoria

DEN - PIA

DENPIA

Denver Intl

Sat 12/13

5:45 pm-8:56 pm

Nonstop2h 11m

Greater Peoria

Thu 1/1

5:19 pm-11:38 pm

1 stop7h 19m

$329

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 20 results
1
2

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 September 12, 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, August is the cheapest month in which you can book a flight from Denver to Peoria, Illinois (average of $318). Flying from Denver to Peoria, Illinois in October is currently the most expensive (average of $421). 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 September 17, 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 66% on airfare.

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 September 17, 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
8,926 reviews

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Entertainment

7.1

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
8,926 reviews
United Airlines
7.4
Good
8,926 reviews

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Entertainment

7.1

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
8,926 reviews

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Entertainment

7.1

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
8,926 reviews

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Entertainment

7.1

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. 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 American Airlines and United Airlines, with the lowest prices starting at $228 and $229, 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 (48%), SkyWest Airlines (45%), United Airlines (45%).

  • 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 $176, our data indicates the cheapest price to be $59. The most popular route (Denver Intl - Greater Peoria), is priced around $229.

  • 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, August is the cheapest month in which you can book a flight from Denver to Peoria, Illinois (average of $318). Flying from Denver to Peoria, Illinois in October is currently the most expensive (average of $421). 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$77Average$155FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$228Average$342FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$229Average$374FlexibilityNo cancel feeOn-time69%

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