$155+ Cheap flights from Peoria, IL to Denver (PIA - DEN)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — DEN
Nov 9 — Nov 161
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Peoria to Denver 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 Greater Peoria to Denver Intl are usually found in December or January, booked 76 days in advance, depart on a Thursday or Saturday and return on a Thursday
Cheap flight deals from Peoria to Denver
Cheapest
Best
Last-minute
One-way
Cheapest flights from Peoria to DenverExplore the most affordable flight options available from Peoria to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 10, 2026.
Explore the most affordable flight options available from Peoria to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/8. 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.
Sun 11/229:29 pm -
1 stop13h 14m
Wed 12/29:00 am -
2 stops22h 03m
Deal found 10/8![Multiple Airlines logo]()
$294
This Booking.com deal was found by Cheapflights users on 10/6. 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.
Sun 10/185:24 pm -
Nonstop2h 20m
Thu 10/2210:20 am -
Nonstop1h 59m
Deal found 10/6![Allegiant Air logo]()
$307
This United Airlines deal was found by Cheapflights users on 10/9. 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 11/65:30 pm -
1 stop7h 01m
Fri 11/135:45 pm -
Nonstop2h 21m
Deal found 10/9![United Airlines logo]()
$329
This Cheapflightsfares deal was found by Cheapflights users on 10/7. 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.
Thu 10/85:24 pm -
Nonstop2h 20m
Thu 10/1510:20 am -
Nonstop1h 59m
Deal found 10/7![Allegiant Air logo]()
$335
This American Airlines deal was found by Cheapflights users on 10/8. 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 11/205:37 pm -
1 stop6h 27m
Mon 11/236:11 pm -
1 stop4h 53m
Deal found 10/8![American Airlines logo]()
$339
This CheapOair deal was found by Cheapflights users on 10/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/225:24 pm -
Nonstop2h 20m
Sun 10/2510:20 am -
Nonstop1h 59m
Deal found 10/7![Allegiant Air logo]()
$341
This American Airlines deal was found by Cheapflights users on 10/9. 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 11/65:37 pm -
1 stop6h 17m
Fri 11/131:13 pm -
2 stops9h 50m
Deal found 10/9![American Airlines logo]()
$344
This United Airlines deal was found by Cheapflights users on 10/6. 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 10/248:30 am -
1 stop7h 47m
Fri 10/305:45 pm -
Nonstop2h 21m
Deal found 10/6![United Airlines logo]()
$349
This Kiwi.com deal was found by Cheapflights users on 10/8. 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.
Sun 11/229:29 pm -
1 stop13h 14m
Tue 12/19:00 am -
2 stops24h 39m
Deal found 10/8![Multiple Airlines logo]()
$352
Best flights from Peoria to DenverDiscover carefully curated flight deals from Peoria to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 10, 2026.
Discover carefully curated flight deals from Peoria to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 10, 2026.
This United Airlines deal was found by Cheapflights users on 10/8. 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 1/78:40 am -
Nonstop2h 55m
Sun 1/104:20 pm -
1 stop5h 39m
Deal found 10/8![United Airlines logo]()
$356
This American Airlines deal was found by Cheapflights users on 10/5. 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 10/234:42 pm -
1 stop8h 16m
Fri 10/304:54 pm -
1 stop5h 29m
Deal found 10/5![American Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 10/6. 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 11/205:30 pm -
1 stop7h 01m
Mon 11/235:45 pm -
Nonstop2h 21m
Deal found 10/6![United Airlines logo]()
$365
This United Airlines deal was found by Cheapflights users on 10/6. 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 10/228:45 am -
Nonstop2h 41m
Tue 10/277:45 am -
1 stop5h 08m
Deal found 10/6![United Airlines logo]()
$374
This United Airlines deal was found by Cheapflights users on 10/9. 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 11/68:41 am -
Nonstop2h 54m
Fri 11/135:45 pm -
Nonstop2h 21m
Deal found 10/9![United Airlines logo]()
$425
This United Airlines deal was found by Cheapflights users on 10/6. 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 11/235:30 pm -
1 stop5h 18m
Thu 11/261:25 pm -
Nonstop2h 21m
Deal found 10/6![United Airlines logo]()
$429
This United Airlines deal was found by Cheapflights users on 10/6. 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 11/55:30 pm -
1 stop7h 01m
Mon 11/95:45 pm -
Nonstop2h 21m
Deal found 10/6![United Airlines logo]()
$429
This United Airlines deal was found by Cheapflights users on 10/8. 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 11/125:30 pm -
1 stop6h 14m
Sun 11/156:00 am -
1 stop6h 53m
Deal found 10/8![United Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 10/5. 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 10/238:45 am -
Nonstop2h 41m
Fri 10/305:45 pm -
Nonstop2h 21m
Deal found 10/5![United Airlines logo]()
$459
Last-minute flights from Peoria to DenverDiscover last-minute flight deals from Peoria to Denver. Data last updated October 10, 2026 and is based on user searches.
Discover last-minute flight deals from Peoria to Denver. Data last updated October 10, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 10/7. 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.
Thu 10/85:24 pm -
Nonstop2h 20m
Thu 10/1510:20 am -
Nonstop1h 59m
Deal found 10/7![Allegiant Air logo]()
$335
This Booking.com deal was found by Cheapflights users on 10/6. 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.
Sun 10/185:24 pm -
Nonstop2h 20m
Thu 10/2210:20 am -
Nonstop1h 59m
Deal found 10/6![Allegiant Air logo]()
$307
This CheapOair deal was found by Cheapflights users on 10/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/225:24 pm -
Nonstop2h 20m
Sun 10/2510:20 am -
Nonstop1h 59m
Deal found 10/7![Allegiant Air logo]()
$341
This United Airlines deal was found by Cheapflights users on 10/6. 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 10/248:30 am -
1 stop7h 47m
Fri 10/305:45 pm -
Nonstop2h 21m
Deal found 10/6![United Airlines logo]()
$349
This Kiwi.com deal was found by Cheapflights users on 10/10. 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 10/295:24 pm -
Nonstop2h 20m
Sat 10/315:33 pm -
2 stops48h 38m
Deal found 10/10![Multiple Airlines logo]()
$350
This United Airlines deal was found by Cheapflights users on 10/9. 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 11/65:30 pm -
1 stop7h 01m
Fri 11/135:45 pm -
Nonstop2h 21m
Deal found 10/9![United Airlines logo]()
$329
This American Airlines deal was found by Cheapflights users on 10/9. 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 11/65:37 pm -
1 stop6h 17m
Fri 11/131:13 pm -
2 stops9h 50m
Deal found 10/9![American Airlines logo]()
$344
This American Airlines deal was found by Cheapflights users on 10/8. 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 11/205:37 pm -
1 stop6h 27m
Mon 11/236:11 pm -
1 stop4h 53m
Deal found 10/8![American Airlines logo]()
$339
This Kiwi.com deal was found by Cheapflights users on 10/8. 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.
Sun 11/229:29 pm -
1 stop13h 14m
Wed 12/29:00 am -
2 stops22h 03m
Deal found 10/8![Multiple Airlines logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 10/8. 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.
Sun 11/229:29 pm -
1 stop13h 14m
Tue 12/19:00 am -
2 stops24h 39m
Deal found 10/8![Multiple Airlines logo]()
$352
One-way flights from Peoria to DenverSearch for one-way flight options from Peoria to Denver. Find affordable one-way fares based on user searches. Data last updated October 10, 2026.
Search for one-way flight options from Peoria to Denver. Find affordable one-way fares based on user searches. Data last updated October 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/7. 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.
Sun 11/158:32 pm -
1 stop28h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Multiple Airlines logo]()
$155
This CheapOair deal was found by Cheapflights users on 10/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/155:24 pm -
Nonstop2h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Allegiant Air logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 10/7. 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 10/225:24 pm -
Nonstop2h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Allegiant Air logo]()
$197
This American Airlines deal was found by Cheapflights users on 10/6. 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 11/1312:25 pm -
1 stop8h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![American Airlines logo]()
$209
This American Airlines deal was found by Cheapflights users on 10/7. 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.
Thu 10/225:30 pm -
1 stop8h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![American Airlines logo]()
$249
This United Airlines deal was found by Cheapflights users on 10/7. 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 11/158:41 am -
Nonstop2h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![United Airlines logo]()
$279
This American Airlines deal was found by Cheapflights users on 10/7. 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.
Thu 10/154:42 pm -
1 stop6h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![American Airlines logo]()
$304
This Kiwi.com deal was found by Cheapflights users on 10/6. 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 11/1310:40 am -
2 stops31h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![Multiple Airlines logo]()
$316
This Kiwi.com deal was found by Cheapflights users on 10/7. 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.
Tue 12/2912:22 pm -
2 stops35h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Multiple Airlines logo]()
$339
Find flight deals from Peoria to Denver
Discover tips and strategies to find the most affordable flight options for your journey from Peoria (PIA) to Denver (DEN). 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 October 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $294 (Kiwi.com) |
One-way from | $155 (Kiwi.com) |
Popular in | February |
Cheapest in | December |
Average price | $379 |
Good round-trip deal | $378 or less |
Good one-way deal | $185 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Peoria 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, Cheapflights users made 7,457,451 searches. Data last updated October 10, 2026.
Use the filters below to find and compare flights from Peoria to Denver that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PeoriaDenver
PIA Greater Peoria - DEN Denver Intl
PIADEN
Greater Peoria
Sun 11/15
8:32 pm-11:44 pm
2 stops28h 12m
Denver Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$192
PeoriaDenver
PIA Greater Peoria - DEN Denver Intl
PIADEN
Greater Peoria
Fri 11/13
12:25 pm-7:53 pm
1 stop8h 28m
Denver Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$209
Quickest round-trip
PeoriaDenver
PIA Greater Peoria - DEN Denver Intl
PIADEN
Greater Peoria
Sun 11/15
8:41 am-10:35 am
Nonstop2h 54m
Denver Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$279
PeoriaDenver
PIA Greater Peoria - DEN Denver Intl
PIADEN
Greater Peoria
Thu 1/7
8:40 am-10:35 am
Nonstop2h 55m
Denver Intl
Sun 1/10
4:20 pm-10:59 pm
1 stop5h 39m
$356
PeoriaDenver
PIA Greater Peoria - DEN Denver Intl
PIADEN
Greater Peoria
Fri 10/23
4:42 pm-11:58 pm
1 stop8h 16m
Denver Intl
Fri 10/30
4:54 pm-11:23 pm
1 stop5h 29m
$359
PeoriaDenver
PIA Greater Peoria - DEN Denver Intl
PIADEN
Greater Peoria
Fri 11/13
5:36 pm-8:13 am
3 stops39h 37m
Denver Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$365
PeoriaDenver
PIA Greater Peoria - DEN Denver Intl
PIADEN
Greater Peoria
Fri 11/20
5:30 pm-11:31 pm
1 stop7h 01m
Denver Intl
Mon 11/23
5:45 pm-9:06 pm
Nonstop2h 21m
$365
PeoriaDenver
PIA Greater Peoria - DEN Denver Intl
PIADEN
Greater Peoria
Thu 10/22
8:45 am-10:26 am
Nonstop2h 41m
Denver Intl
Tue 10/27
7:45 am-1:53 pm
1 stop5h 08m
$374
PeoriaDenver
PIA Greater Peoria - DEN Denver Intl
PIADEN
Greater Peoria
Thu 10/22
12:42 pm-5:49 pm
2 stops30h 07m
Denver Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$390
PeoriaDenver
PIA Greater Peoria - DEN Denver Intl
PIADEN
Greater Peoria
Fri 11/6
8:41 am-10:35 am
Nonstop2h 54m
Denver Intl
Fri 11/13
5:45 pm-9:06 pm
Nonstop2h 21m
$425
Showing 1-10 of 18 resultsSorted by cheapest first
Compare providers for flights from Peoria to Denver
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 Peoria to Denver in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Peoria, Illinois-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Peoria, Illinois-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Peoria, Illinois-Denver flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Peoria, Illinois-Denver flights, Cheapflights users trust FlightHub the most. FlightHub 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 Peoria, Illinois-Denver 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 Peoria to Denver
Have a flexible travel schedule? Discover the best time to fly to Denver from Peoria with our price prediction graph.
PIA-DEN
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 Denver
Prices
Airlines
How far ahead should I book a flight from Peoria, Illinois to Denver?
To ensure you get the cheapest price possible for a flight from Peoria, Illinois to Denver, you should look to book at least 74 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 Peoria, Illinois to Denver?
Currently, December is the cheapest month in which you can book a flight from Peoria, Illinois to Denver (average of $253). Flying from Peoria, Illinois to Denver in February is currently the most expensive (average of $394). 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 DEN?
Find hourly flight availability from Peoria to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 10, 2026.
When flying from Peoria, Illinois to Denver, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Reviews of airlines servicing Denver
Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated October 10, 2026.
Read reviews from past customers who have flown United Airlines,Allegiant Air, andAmerican Airlines from Peoria to Denver. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.1
Food
6.7
Comfort
7.3
Boarding
7.7
Crew
8.1
Overall
7.4
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Entertainment
7.1
Food
6.7
Comfort
7.3
Boarding
7.7
Crew
8.1
Overall
7.4
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Entertainment
7.1
Food
6.7
Comfort
7.3
Boarding
7.7
Crew
8.1
Overall
7.4
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Entertainment
7.1
Food
6.7
Comfort
7.3
Boarding
7.7
Crew
8.1
Overall
7.4
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Related info for your journey
Find useful and relevant information for your journey from Peoria to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Denver?
Book flights to Denver if you plan to visit one of these locationsThornton
Westminster
Lakewood
Centennial
Black Hawk
Broomfield
Golden
Wheat Ridge
Silverthorne
Central City
Fort Morgan
Greeley
Frisco
Winter Park
Limon
Englewood
Manitou Springs
Glendale
Cripple Creek
Evergreen
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
Complete your trip
Denver flight routes
Flights by cabin class
Other flight options
Other flights from Peoria
Popular flights
Alternative routes for Peoria to Denver
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Denver by adding a car rental and/or hotel reservation to your travel itinerary.
Other flights to Denver
Explore flights to Denver departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 10, 2026.
Search flights from Peoria to Denver by cabin class
Find flights from Peoria to Denver, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Peoria and Denver flights
Browse other Peoria and Denver flight options. Last updated on October 10, 2026.
Other flights from Peoria
Browse through other flights departing from Peoria. Flights are based on user searches made on Cheapflights and were last updated on October 10, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from Peoria to Denver
Discover the top 3 airlines that operate flights from Peoria to Denver. 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 7,457,451 searches. Data last updated October 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$98 | Average$281 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$226 | Average$381 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$228 | Average$326 | FlexibilityNo cancel fee | On-time71% |