$124+ Cheap flights from Peoria, IL (PIA) to Colorado
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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — DEN
Oct 10 — Oct 171
Round-trip
1 adult, Economy
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Find cheap flights from Peoria to Colorado 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
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Cheapest flights from Peoria to ColoradoExplore the most affordable flight options available from Peoria to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.
Explore the most affordable flight options available from Peoria to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 9/5. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/155:24 pm -
Nonstop2h 20m
Thu 10/2210:20 am -
Nonstop1h 59m
Deal found 9/5![Allegiant Air logo]()
$246
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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 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 9/9![Allegiant Air logo]()
$247
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 10/189:54 pm -
1 stop12h 16m
Thu 10/2210:20 am -
Nonstop1h 59m
Deal found 9/8![Multiple Airlines logo]()
$294
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Thu 10/298:41 am -
Nonstop2h 54m
Mon 11/95:45 pm -
Nonstop2h 21m
Deal found 9/9![United Airlines logo]()
$299
This Gotogate deal was found by Cheapflights users on 9/8. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1310:07 am -
Nonstop2h 20m
Sun 9/202:26 pm -
Nonstop2h 03m
Deal found 9/8![Allegiant Air logo]()
$308
This Cheapflightsfares deal was found by Cheapflights users on 9/8. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/15:24 pm -
Nonstop2h 20m
Thu 10/810:20 am -
Nonstop1h 59m
Deal found 9/8![Allegiant Air logo]()
$318
This American Airlines deal was found by Cheapflights users on 9/5. 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 10/165:30 pm -
1 stop8h 06m
Mon 10/195:24 am -
1 stop5h 37m
Deal found 9/5![American Airlines logo]()
$319
This American Airlines deal was found by Cheapflights users on 9/5. 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.
Wed 9/305:28 pm -
1 stop7h 49m
Tue 10/61:07 pm -
2 stops10h 03m
Deal found 9/5![American Airlines logo]()
$324
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Tue 11/36:25 am -
1 stop5h 01m
Tue 11/105:45 pm -
Nonstop2h 21m
Deal found 9/8![United Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Sat 10/246:15 am -
1 stop5h 40m
Wed 10/288:09 am -
1 stop7h 38m
Deal found 9/8![United Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Tue 10/278:41 am -
1 stop4h 55m
Sat 10/311:40 pm -
1 stop6h 26m
Deal found 9/9![United Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Sat 10/318:41 am -
1 stop6h 55m
Mon 11/21:47 pm -
1 stop6h 19m
Deal found 9/9![United Airlines logo]()
$419
Best flights from Peoria to ColoradoDiscover carefully curated flight deals from Peoria to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
Discover carefully curated flight deals from Peoria to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Sat 10/173:41 pm -
1 stop5h 04m
Tue 10/205:25 pm -
Nonstop2h 26m
Deal found 9/9![United Airlines logo]()
$389
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Sat 10/246:15 am -
1 stop5h 40m
Wed 10/288:09 am -
1 stop7h 38m
Deal found 9/8![United Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Wed 9/308:45 am -
Nonstop2h 41m
Tue 10/64:40 pm -
1 stop5h 18m
Deal found 9/5![United Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Sat 10/318:41 am -
1 stop4h 55m
Mon 11/21:40 pm -
1 stop6h 26m
Deal found 9/9![United Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Sat 10/318:41 am -
1 stop6h 55m
Mon 11/21:47 pm -
1 stop6h 19m
Deal found 9/9![United Airlines logo]()
$419
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Sat 1/3010:40 am -
2 stops10h 47m
Wed 2/31:20 pm -
1 stop6h 27m
Deal found 9/9![United Airlines logo]()
$424
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Tue 10/276:25 am -
2 stops7h 11m
Sat 10/317:15 am -
3 stops14h 58m
Deal found 9/9![United Airlines logo]()
$425
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Wed 9/308:45 am -
Nonstop2h 41m
Wed 10/74:40 pm -
1 stop5h 18m
Deal found 9/8![United Airlines logo]()
$429
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Thu 11/128:41 am -
Nonstop2h 54m
Sun 11/156:00 am -
1 stop6h 53m
Deal found 9/7![United Airlines logo]()
$429
This United Airlines deal was found by Cheapflights users on 9/6. 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.
Wed 9/236:39 pm -
1 stop5h 49m
Wed 9/305:25 pm -
Nonstop2h 26m
Deal found 9/6![United Airlines logo]()
$449
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Tue 9/228:45 am -
Nonstop2h 41m
Sat 9/2611:15 am -
1 stop6h 46m
Deal found 9/7![United Airlines logo]()
$449
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Tue 11/108:41 am -
1 stop4h 40m
Sun 11/158:09 am -
1 stop4h 44m
Deal found 9/9![United Airlines logo]()
$568
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/294:05 pm -
1 stop6h 48m
Fri 10/25:08 pm -
2 stops15h 58m
Deal found 9/10![United Airlines logo]()
$586
This United Airlines deal was found by Cheapflights users on 9/6. 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.
Wed 9/235:50 am -
1 stop5h 57m
Mon 9/281:29 pm -
1 stop6h 22m
Deal found 9/6![United Airlines logo]()
$658
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Thu 2/255:00 am -
2 stops9h 29m
Sun 2/281:35 pm -
2 stops21h 21m
Deal found 9/9![United Airlines logo]()
$689
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Thu 9/248:45 am -
1 stop6h 42m
Mon 9/283:23 pm -
1 stop4h 28m
Deal found 9/9![United Airlines logo]()
$1,208
Last-minute flights from Peoria to ColoradoDiscover last-minute flight deals from Peoria to Colorado. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from Peoria to Colorado. Data last updated September 10, 2026 and is based on user searches.
This Gotogate deal was found by Cheapflights users on 9/8. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1310:07 am -
Nonstop2h 20m
Sun 9/202:26 pm -
Nonstop2h 03m
Deal found 9/8![Allegiant Air logo]()
$308
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Sat 9/262:24 pm -
1 stop10h 24m
Thu 10/1510:20 am -
Nonstop1h 59m
Deal found 9/8![Multiple Airlines logo]()
$330
This American Airlines deal was found by Cheapflights users on 9/5. 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.
Wed 9/305:28 pm -
1 stop7h 49m
Tue 10/61:07 pm -
2 stops10h 03m
Deal found 9/5![American Airlines logo]()
$324
This Cheapflightsfares deal was found by Cheapflights users on 9/8. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/15:24 pm -
Nonstop2h 20m
Thu 10/810:20 am -
Nonstop1h 59m
Deal found 9/8![Allegiant Air logo]()
$318
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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 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 9/9![Allegiant Air logo]()
$247
This Cheapflightsfares deal was found by Cheapflights users on 9/5. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/155:24 pm -
Nonstop2h 20m
Thu 10/2210:20 am -
Nonstop1h 59m
Deal found 9/5![Allegiant Air logo]()
$246
This American Airlines deal was found by Cheapflights users on 9/5. 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 10/165:30 pm -
1 stop8h 06m
Mon 10/195:24 am -
1 stop5h 37m
Deal found 9/5![American Airlines logo]()
$319
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 10/189:54 pm -
1 stop12h 16m
Thu 10/2210:20 am -
Nonstop1h 59m
Deal found 9/8![Multiple Airlines logo]()
$294
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Sat 10/246:15 am -
1 stop5h 40m
Wed 10/288:09 am -
1 stop7h 38m
Deal found 9/8![United Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Tue 10/278:41 am -
1 stop4h 55m
Sat 10/311:40 pm -
1 stop6h 26m
Deal found 9/9![United Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Thu 10/298:41 am -
Nonstop2h 54m
Mon 11/95:45 pm -
Nonstop2h 21m
Deal found 9/9![United Airlines logo]()
$299
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Sat 10/318:41 am -
1 stop6h 55m
Mon 11/21:47 pm -
1 stop6h 19m
Deal found 9/9![United Airlines logo]()
$419
One-way flights from Peoria to ColoradoSearch for one-way flight options from Peoria to Colorado. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
Search for one-way flight options from Peoria to Colorado. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
This Super.com deal was found by Cheapflights users on 9/5. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/45:24 pm -
Nonstop2h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Allegiant Air logo]()
$124
This Cheapflightsfares deal was found by Cheapflights users on 9/5. 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 Cheapflightsfares 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 9/5![Allegiant Air logo]()
$143
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/115:24 pm -
Nonstop2h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Allegiant Air logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 12/69:39 pm -
1 stop12h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$179
This Kissandfly.com deal was found by Cheapflights users on 9/9. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/15:24 pm -
Nonstop2h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Allegiant Air logo]()
$181
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Wed 12/98:50 am -
Nonstop2h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![United Airlines logo]()
$189
This American Airlines deal was found by Cheapflights users on 9/9. 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.
Thu 10/15:28 pm -
1 stop7h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![American Airlines logo]()
$199
This American Airlines deal was found by Cheapflights users on 9/9. 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.
Thu 12/106:02 am -
2 stops9h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![American Airlines logo]()
$204
Find flight deals from Peoria to Colorado
Keep the following information in mind while searching for Peoria to Colorado flight deals. Data was last updated September 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $246 (Cheapflightsfares) |
One-way from | $124 (Super.com) |
Popular in | February |
Cheapest in | December |
Average price | $347 |
Good round-trip deal | $296 or less |
Good one-way deal | $198 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Peoria to Colorado 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 September 10, 2026.
Use the filters below to find and compare flights from Peoria to Colorado that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
PeoriaDenver
PIA Greater Peoria - DEN Denver Intl
PIADEN
Greater Peoria
Sun 10/4
5:24 pm-6:44 pm
Nonstop2h 20m
Denver Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$124
PeoriaDenver
PIA Greater Peoria - DEN Denver Intl
PIADEN
Greater Peoria
Thu 10/15
5:24 pm-6:44 pm
Nonstop2h 20m
Denver Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$143
PeoriaDenver
PIA Greater Peoria - DEN Denver Intl
PIADEN
Greater Peoria
Fri 10/2
5:28 pm-12:17 am
1 stop7h 49m
Denver Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$199
PeoriaDenver
PIA Greater Peoria - DEN Denver Intl
PIADEN
Greater Peoria
Sun 10/4
5:28 pm-12:17 am
1 stop7h 49m
Denver Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$199
PeoriaDenver
PIA Greater Peoria - DEN Denver Intl
PIADEN
Greater Peoria
Thu 12/10
4:43 pm-10:20 pm
1 stop6h 37m
Denver Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$199
PeoriaDenver
PIA Greater Peoria - DEN Denver Intl
PIADEN
Greater Peoria
Sun 10/11
5:30 pm-10:52 pm
1 stop6h 22m
Denver Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$209
PeoriaDenver
PIA Greater Peoria - DEN Denver Intl
PIADEN
Greater Peoria
Thu 12/10
5:30 pm-11:14 pm
1 stop6h 44m
Denver Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$239
PeoriaDenver
PIA Greater Peoria - DEN Denver Intl
PIADEN
Greater Peoria
Wed 12/9
11:29 am-4:46 pm
3 stops30h 17m
Denver Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$248
PeoriaDenver
PIA Greater Peoria - DEN Denver Intl
PIADEN
Greater Peoria
Sun 10/11
3:04 pm-9:15 pm
2 stops31h 11m
Denver Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$289
PeoriaDenver
PIA Greater Peoria - DEN Denver Intl
PIADEN
Greater Peoria
Sun 11/22
8:15 am-12:45 pm
1 stop5h 30m
Denver Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$319
Showing 1-10 of 28 resultsSorted by cheapest first
Best time to book a flight from Peoria to Colorado
Have a flexible travel schedule? Discover the best time to fly to Colorado from Peoria with our price prediction graph.
PIA-DEN
PIA-COS
PIA-MTJ
PIA-GJT
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 Colorado
PIA-USCO
PIA-DEN
PIA-COS
PIA-MTJ
PIA-GJT
What is the cheapest month to book a flight from Peoria, Illinois to Colorado?
Currently, December is the cheapest month in which you can book a flight from Peoria, Illinois to Colorado (average of $253). Flying from Peoria, Illinois to Colorado 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 CO?
Find hourly flight availability from Peoria to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 10, 2026.
When flying from Peoria, Illinois to Colorado, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Weekly flight availability from Peoria, Illinois to Colorado
Explore weekly flight availability from Peoria to Colorado. 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 September 10, 2026.
The most flights from PIA to USCO 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).
How much does it cost to fly round-trip from Peoria, Illinois to Colorado?
Airfare is below average for this route at the moment.
Peoria, Illinois to Colorado flights typically cost between $291 and $419 in October.The cheapest round-trip price found within the last 5 days was $246 on Allegiant Air (Oct 15-Oct 22).
How far ahead should I book a flight from Peoria, Illinois to Colorado?
The best time to book flights from Peoria, Illinois to Colorado is 71 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Reviews of airlines servicing Colorado
Get insights into the airlines that provide service to Colorado. 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 Colorado. Reviews last updated September 10, 2026.
See what other customers who have flown with United Airlines,Allegiant Air, andAmerican Airlines from Peoria to Colorado have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.3
Overall
7.4
Entertainment
7.1
Boarding
7.7
Crew
8.1
Food
6.7
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Comfort
7.3
Overall
7.4
Entertainment
7.1
Boarding
7.7
Crew
8.1
Food
6.7
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Comfort
7.3
Overall
7.4
Entertainment
7.1
Boarding
7.7
Crew
8.1
Food
6.7
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Comfort
7.3
Overall
7.4
Entertainment
7.1
Boarding
7.7
Crew
8.1
Food
6.7
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 Colorado. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Peoria to Colorado
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Complete your trip
Complete your trip to Colorado by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Peoria to Colorado by cabin class
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Peoria and Colorado flights
Browse other Peoria and Colorado flight options. Last updated on September 10, 2026.
Popular flight searches
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Peoria to Colorado flights
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Top 3 airlines flying from Peoria to Colorado
Discover the top 3 airlines that operate flights from Peoria to Colorado. 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 September 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$74 | Average$277 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$223 | Average$393 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$228 | Average$373 | FlexibilityNo cancel fee | On-time71% |