HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Peoria

$69+ 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — PIA
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Denver to Peoria with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Denver Intl to Greater Peoria are usually found in February or September, booked 84 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 July 3, 2025.

Round-trip from

$203
(American Airlines)

One-way from

$69
(Booking.com)

Popular in

December

Cheapest in

February

Average price

$266

Good round-trip deal

$186 or less

Good one-way deal

$112 or less
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. 16% potential increase in price ($53 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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

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 July 3, 2025.

This Booking.com deal was found by Cheapflights users on 7/2. 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 10/36:41 pmDEN - PIA
Nonstop1h 51mAllegiant Air
Mon 10/611:59 amPIA - DEN
Nonstop2h 16mAllegiant Air
Deal found 7/2$72
This American Airlines deal was found by Cheapflights users on 6/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/292:47 pmDEN - PIA
1 stop7h 02mAmerican Airlines
Tue 9/306:15 pmPIA - DEN
1 stop5h 01mAmerican Airlines
Deal found 6/30$203
This United Airlines deal was found by Cheapflights users on 7/3. 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.
Fri 8/225:59 pmDEN - PIA
Nonstop2h 13mUnited Airlines
Wed 8/278:45 amPIA - DEN
Nonstop2h 41mUnited Airlines
Deal found 7/3$209
This Mytrip deal was found by Cheapflights users on 7/2. 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.
Thu 9/115:43 pmDEN - PIA
3 stops19h 45mMultiple Airlines
Mon 9/153:18 pmPIA - DEN
Nonstop2h 16mMultiple Airlines
Deal found 7/2$275

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 July 3, 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 10/3

6:41 pm-9:32 pm

Nonstop1h 51m

Greater Peoria

Mon 10/6

11:59 am-1:15 pm

Nonstop2h 16m

$72

DenverPeoria

DEN - PIA

DENPIA

Denver Intl

Fri 8/29

2:47 pm-10:49 pm

1 stop7h 02m

Greater Peoria

Tue 9/30

6:15 pm-10:16 pm

1 stop5h 01m

$203

DenverPeoria

DEN - PIA

DENPIA

Denver Intl

Fri 8/22

5:59 pm-9:12 pm

Nonstop2h 13m

Greater Peoria

Wed 8/27

8:45 am-10:26 am

Nonstop2h 41m

$209

DenverPeoria

DEN - PIA

DENPIA

Denver Intl

Thu 9/11

5:43 pm-2:28 pm

3 stops19h 45m

Greater Peoria

Mon 9/15

3:18 pm-4:34 pm

Nonstop2h 16m

$275

DenverPeoria

DEN - PIA

DENPIA

Denver Intl

Mon 9/15

5:24 pm-8:24 pm

Nonstop2h 00m

$69

DenverPeoria

DEN - PIA

DENPIA

Denver Intl

Wed 7/23

10:00 am-7:49 pm

1 stop8h 49m

$177

DenverPeoria

DEN - PIA

DENPIA

Denver Intl

Thu 7/24

5:38 pm-8:56 pm

Nonstop2h 18m

$224

DenverPeoria

DEN - PIA

DENPIA

Denver Intl

Thu 7/24

1:49 pm-12:12 am

1 stop9h 23m

$234

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

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 June 27, 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 $428). 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 July 3, 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 in the morning could potentially save you up to 53% on airfare.

Weekly flight availability from Denver to Peoria, Illinois

Explore weekly flight availability from Denver to Peoria. 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 July 3, 2025.

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

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 July 3, 2025.
Get a feel of what it's like to fly with United Airlines, Allegiant Air, and American Airlines 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
8,861 reviews

Overall

7.4

Crew

8.1

Entertainment

7.0

Boarding

7.7

Food

6.6

Comfort

7.3

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
8,861 reviews
United Airlines
7.4
Good
8,861 reviews

Overall

7.4

Crew

8.1

Entertainment

7.0

Boarding

7.7

Food

6.6

Comfort

7.3

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
7.3
Good
708 reviews
United Airlines
7.4
Good
8,861 reviews

Overall

7.4

Crew

8.1

Entertainment

7.0

Boarding

7.7

Food

6.6

Comfort

7.3

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
8,861 reviews

Overall

7.4

Crew

8.1

Entertainment

7.0

Boarding

7.7

Food

6.6

Comfort

7.3

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 51m 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.

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

    Flying on American Airlines is currently your cheapest option to Peoria, Illinois, with prices starting at $203. Additional round-trip tickets that might be worth considering are offered by United Airlines and Allegiant Air, with the lowest prices starting at $219 and $236, respectively. Users have found that American Airlines is 25% cheaper than the other options available to this destination.

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

    $69 is the cheapest one-way deal found within the past few days, from Allegiant Air. You may also be able to find cheap deals on United Airlines and American Airlines, with prices starting from $224 and $234, respectively.

  • 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: SkyWest Airlines (58%), United Airlines (58%), Allegiant Air (38%).

  • 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 $246, our data indicates the cheapest price to be $75. The most popular route (Denver Intl - Greater Peoria), is priced around $72.

  • 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 $428). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Denver to Peoria

See prices for flight routes from nearby airports that may be better suited for you.
Denver to O'Hare Intl flights
Denver to Midway flights
Denver to St. Louis flights
Colorado Springs to O'Hare Intl flights
Denver to Moline flights
Durango to O'Hare Intl flights
Grand Junction to O'Hare Intl flights
Aspen to O'Hare Intl flights
Denver to Bloomington flights
Colorado Springs to St. Louis flights
Colorado Springs to Midway flights
Montrose to O'Hare Intl flights
Denver to Evansville flights
Durango to St. Louis flights
Vail to O'Hare Intl flights
Grand Junction to Midway flights
Denver to Rockford flights
Denver to Springfield flights
Montrose to St. Louis flights
Gunnison to O'Hare Intl flights
Hayden to O'Hare Intl flights
Colorado Springs to Peoria flights
Montrose to Midway flights
Aspen to St. Louis flights
Aspen to Midway flights
Hayden to St. Louis flights
Colorado Springs to Moline flights
Vail to St. Louis flights
Denver to Dubuque flights
Grand Junction to Peoria flights
Grand Junction to Bloomington flights
Colorado Springs to Evansville flights
Grand Junction to St. Louis flights
Montrose to Peoria flights
Denver to Champaign flights
Colorado Springs to Springfield flights
Denver to Decatur flights
Montrose to Springfield flights
Colorado Springs to Champaign flights
Hayden to Moline flights
Colorado Springs to Bloomington flights
Gunnison to St. Louis flights
Durango to Moline flights
Durango to Midway flights
Vail to Midway flights

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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$84Average$166FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$229Average$390FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$238Average$356FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.