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Cheap flights from Peoria, Illinois to Denver from $66

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Peoria, Illinois to Denver departing on 12/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Peoria, Illinois to Denver

Cheap round-trip flights

Enter your travel dates to find the best prices.
Allegiant Air Logo
3:08 pm - 4:34 pmPIA-DEN
2h 26mnonstop
Allegiant Air Logo
5:24 pm - 8:21 pmDEN-PIA
1h 57mnonstop
$123Allegiant Air
Find Deal
Fri, Dec 5 - Fri, Dec 12
Allegiant Air Logo
3:08 pm - 4:34 pmPIA-DEN
2h 26mnonstop
Allegiant Air Logo
5:24 pm - 8:21 pmDEN-PIA
1h 57mnonstop
$128Allegiant Air
Find Deal
Fri, Dec 5 - Fri, Dec 12
Allegiant Air Logo
12:09 pm - 1:34 pmPIA-DEN
2h 25mnonstop
Allegiant Air Logo
5:50 pm - 8:47 pmDEN-PIA
1h 57mnonstop
$144Allegiant Air
Find Deal
Mon, Nov 10 - Fri, Nov 14
Allegiant Air Logo
12:09 pm - 1:34 pmPIA-DEN
2h 25mnonstop
Allegiant Air Logo
5:47 pm - 8:47 pmDEN-PIA
2h 00mnonstop
$145Allegiant Air
Find Deal
Mon, Nov 17 - Fri, Nov 21
Allegiant Air Logo
12:09 pm - 1:34 pmPIA-DEN
2h 25mnonstop
Allegiant Air Logo
2:24 pm - 5:21 pmDEN-PIA
1h 57mnonstop
$179Allegiant Air
Find Deal
Mon, Nov 10 - Mon, Nov 17
Multiple Airlines Logo
9:41 pm - 3:58 amPIA-DEN
7h 17m1 stop
Multiple Airlines Logo
5:24 pm - 8:21 pmDEN-PIA
1h 57mnonstop
$208Multiple Airlines
Find Deal
Fri, Dec 5 - Fri, Dec 12
Multiple Airlines Logo
12:09 pm - 1:34 pmPIA-DEN
2h 25mnonstop
Multiple Airlines Logo
7:59 pm - 11:19 amDEN-PIA
38h 20m2 stops
$214Multiple Airlines
Find Deal
Mon, Nov 10 - Sat, Nov 15
United Airlines Logo
9:00 am - 10:05 amPIA-DEN
2h 05mnonstop
United Airlines Logo
6:00 am - 12:43 pmDEN-PIA
5h 43m1 stop
$219United Airlines
Find Deal
Sat, Feb 14 - Tue, Feb 17
United Airlines Logo
5:25 pm - 10:05 pmPIA-DEN
5h 40m1 stop
United Airlines Logo
6:00 am - 12:43 pmDEN-PIA
5h 43m1 stop
$229United Airlines
Find Deal
Sat, Feb 14 - Tue, Feb 17
American Airlines Logo
6:05 am - 10:08 amPIA-DEN
5h 03m1 stop
American Airlines Logo
2:48 pm - 10:59 pmDEN-PIA
7h 11m1 stop
$283American Airlines
Find Deal
Thu, Dec 4 - Sat, Dec 6

Allegiant Air flights from Peoria, Illinois to Denver

Our best Allegiant Air deals on Peoria, Illinois to Denver flight tickets
Allegiant Air
Dec 5
PIA3:08 pmGreater Peoria
2h 26m
DEN4:34 pmDenver Intl
Dec 12
DEN5:24 pmDenver Intl
1h 57m
PIA8:21 pmGreater Peoria
$123
Find similar
Allegiant Air
Dec 5
PIA3:08 pmGreater Peoria
2h 26m
DEN4:34 pmDenver Intl
Dec 12
DEN5:24 pmDenver Intl
1h 57m
PIA8:21 pmGreater Peoria
$128
Find similar
Allegiant Air
Nov 10
PIA12:09 pmGreater Peoria
2h 25m
DEN1:34 pmDenver Intl
Nov 14
DEN5:50 pmDenver Intl
1h 57m
PIA8:47 pmGreater Peoria
$144
Find similar

United Airlines flights from Peoria, Illinois to Denver

Our best United Airlines deals on Peoria, Illinois to Denver flight tickets
United Airlines
Feb 14
PIA9:00 amGreater Peoria
2h 05m
DEN10:05 amDenver Intl
Feb 17
DEN6:00 amDenver Intl
5h 43m
1 stop
PIA12:43 pmGreater Peoria
$219
Find similar
United Airlines
Feb 14
PIA5:25 pmGreater Peoria
5h 40m
1 stop
DEN10:05 pmDenver Intl
Feb 17
DEN6:00 amDenver Intl
5h 43m
1 stop
PIA12:43 pmGreater Peoria
$229
Find similar
United Airlines
Dec 4
PIA8:40 amGreater Peoria
2h 52m
DEN10:32 amDenver Intl
Dec 6
DEN5:45 pmDenver Intl
2h 11m
PIA8:56 pmGreater Peoria
$254
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Peoria, Illinois to Denver 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, momondo users made 832,500 searches. Data last updated October 31, 2025.
Use the filters below to find and compare flights from Peoria, Illinois to Denver that are best for you.

Fly from

Fly to

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

$123

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

$128

PeoriaDenver

PIA - DEN

PIADEN

Greater Peoria

Mon 11/10

12:09 pm-1:34 pm

Nonstop2h 25m

Denver Intl

Fri 11/14

5:50 pm-8:47 pm

Nonstop1h 57m

$144

PeoriaDenver

PIA - DEN

PIADEN

Greater Peoria

Mon 11/17

12:09 pm-1:34 pm

Nonstop2h 25m

Denver Intl

Fri 11/21

5:47 pm-8:47 pm

Nonstop2h 00m

$145

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

$179

PeoriaDenver

PIA - DEN

PIADEN

Greater Peoria

Fri 12/5

9:41 pm-3:58 am

1 stop7h 17m

Denver Intl

Fri 12/12

5:24 pm-8:21 pm

Nonstop1h 57m

$208

PeoriaDenver

PIA - DEN

PIADEN

Greater Peoria

Mon 11/10

12:09 pm-1:34 pm

Nonstop2h 25m

Denver Intl

Sat 11/15

7:59 pm-11:19 am

2 stops38h 20m

$214

PeoriaDenver

PIA - DEN

PIADEN

Greater Peoria

Sat 2/14

9:00 am-10:05 am

Nonstop2h 05m

Denver Intl

Tue 2/17

6:00 am-12:43 pm

1 stop5h 43m

$219

PeoriaDenver

PIA - DEN

PIADEN

Greater Peoria

Sat 2/14

5:25 pm-10:05 pm

1 stop5h 40m

Denver Intl

Tue 2/17

6:00 am-12:43 pm

1 stop5h 43m

$229

PeoriaDenver

PIA - DEN

PIADEN

Greater Peoria

Thu 12/4

6:05 am-10:08 am

1 stop5h 03m

Denver Intl

Sat 12/6

2:48 pm-10:59 pm

1 stop7h 11m

$283

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Denver from

How to get the cheapest flight ticket from Peoria, Illinois to Denver

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Peoria, Illinois and Denver?

What is the cheapest month to fly to Denver?

The cheapest month to fly to Denver from Peoria, Illinois is in January. Flight prices, which tend to average around $103, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in January, then you should wait until February to fly from Peoria, Illinois, when ticket prices are also cheap, with an average price of $148.

What is the cheapest day to depart on your flight to Denver?

The cheapest day to depart on your flight to Denver is on a Friday when prices can be found for as low as $226. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Tuesday, with ticket prices averaging around $482.

What is the cheapest time of day to depart on your flight to Denver?

The cheapest time of day to fly to Denver is in the afternoon when flights can be purchased for as low as $149. Flights in the morning are often more expensive with an average ticket price of $437.

What is the cheapest Greater Peoria to Denver Intl flight route?

Fly from Greater Peoria to Denver Intl for the best Greater Peoria - Denver Intl flight prices

How far in advance should I book a flight to Denver?

You are more likely to see cheaper flights to Denver from Peoria, Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $249 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Peoria, Illinois for as low as $128 on momondo.

What cabin class options are available on Greater Peoria to Denver Intl flights?

There are 3 cabin classes available to choose from on Greater Peoria to Denver Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Peoria, Illinois to Denver flight prices changed over time?

As of October 2025, prices for Peoria, Illinois to Denver flights are approximately 51% more expensive when compared to flights at the same time last year.

When to book flights from Peoria, Illinois to Denver

Are you open to changing your travel dates? Check out the ideal times to fly from Peoria, Illinois to Denver according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Peoria, Illinois to Denver (PIA to DEN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Peoria, Illinois to Denver

Best Price Found

$174

Fastest flight time

2h 05m

Direct flights

Every day

Airports in Denver

1 airport
The best one-way flight to Denver from Peoria, Illinois in the past 72 hours is $174. The best round-trip flight deal from Peoria, Illinois to Denver found on momondo in the last 72 hours is $241.
The fastest flight from Peoria, Illinois to Denver takes 2h 05m
Direct flights go from Peoria, Illinois to Denver every day.
There is 1 airport near Denver: Denver Intl (DEN)
Search flight deals

  • How far is Greater Peoria to Denver Intl by plane?

    Denver Intl is 813.3 mi away from Greater Peoria. A reasonable flight in good conditions will take 2h 05m.

  • When did momondo last update prices for flights from Greater Peoria Airport to Denver Intl Airport?

    Prices for flights from Greater Peoria Airport to Denver Intl Airport were last updated today.

  • How many operators does momondo search for flights from Greater Peoria Airport to Denver Intl Airport?

  • How old do you have to be to fly from Greater Peoria Airport to Denver Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Greater Peoria Airport to Denver Intl Airport.

  • What documentation or ID do you need to fly to Denver Intl Airport?

    The travel and health documents required for your trip to Denver Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Denver Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Peoria, Illinois to Denver?

  • What is the most popular airline from Peoria, Illinois to Denver?

Best airlines flying from Peoria, Illinois to Denver

Compare and see reviews for airlines that fly from Peoria, Illinois to Denver with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $76Free CancellationRating
7.2
694 reviews
Search Allegiant Air flights
United AirlinesPriceFrom $218Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights
American AirlinesPriceFrom $228Free CancellationRating
7.2
11,034 reviews
Search American Airlines flights

  • United Airlines Flights From Peoria, Illinois to Denver

    United Airlines flies from Peoria, Illinois to Denver around 4 times per week, with 8,998 momondo users rating the airline 7.4/10. The cheapest United Airlines deal from Peoria, Illinois to Denver in the last 72 hours was $218 (round-trip), much lower than the average airfare cost of $359 for United Airlines flights on this route.

  • Allegiant Air Flights From Peoria, Illinois to Denver

    $76 is the best Allegiant Air flight deal from Peoria, Illinois to Denver found on momondo over the last 72 hours. The average Allegiant Air ticket price found was closer to $140, however, with flight time and availability significantly affecting the price. Allegiant Air (7.2/10 from 694 user reviews) flies into Denver from Peoria, Illinois 1 time in an average week so prices can vary.

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Breckenridge
Estes Park
Black Hawk
Aurora
Fort Collins
Keystone
Cripple Creek
Manitou Springs
Longmont
Boulder
Greeley
Lakewood
Thornton
Westminster
Winter Park
Copper Mountain
Silverthorne
Frisco
Centennial
Grand Lake

Why use momondo?

Why should I use momondo to find a flight deal from Peoria to Denver?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Peoria to Denver for you.

Can I find flights from Peoria to Denver with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Denver from Peoria with this policy.

How can momondo help me find flights from Peoria to Denver?

momondo provides multiple filters to help you find the best flight to Denver from Peoria. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Peoria to Denver right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Peoria to Denver flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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