Round-trip from | $136 (Frontier) |
---|---|
One-way from | $69 (Booking.com) |
Popular in | May |
Cheapest in | September |
Average price | $205 |
Good round-trip deal | $186 or less |
Good one-way deal | $79 or less |
Fly from
Fly to
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
DenverSt. Louis
DEN - STL
DENSTL
Denver Intl
Wed 8/6
6:00 am-9:11 am
Nonstop2h 11m
Lambert-St Louis
Wed 8/13
7:29 pm-8:58 pm
Nonstop2h 29m
DenverChicago
DEN - ORD
DENORD
Denver Intl
Sun 7/20
8:31 pm-12:10 am
Nonstop2h 39m
Chicago O'Hare Intl
Thu 8/7
5:40 am-7:30 am
Nonstop2h 50m
DenverChicago
DEN - MDW
DENMDW
Denver Intl
Sat 8/23
12:54 am-10:08 am
1 stop8h 14m
Chicago Midway
Sat 8/30
6:10 am-2:18 pm
1 stop9h 08m
DenverChicago
DEN - ORD
DENORD
Denver Intl
Thu 8/7
7:22 am-10:53 am
Nonstop2h 31m
Chicago O'Hare Intl
Mon 8/11
7:10 am-8:51 am
Nonstop2h 41m
DenverChicago
DEN - MDW
DENMDW
Denver Intl
Thu 8/28
8:45 pm-12:05 am
Nonstop2h 20m
Chicago Midway
Tue 9/2
8:50 pm-10:25 pm
Nonstop2h 35m
DenverSt. Louis
DEN - STL
DENSTL
Denver Intl
Thu 8/7
5:30 am-8:30 am
Nonstop2h 00m
Lambert-St Louis
Tue 8/12
10:45 am-4:05 pm
2 stops6h 20m
DenverChicago
DEN - ORD
DENORD
Denver Intl
Tue 9/16
10:25 am-9:30 pm
2 stops10h 05m
Chicago O'Hare Intl
Sat 9/20
7:00 am-8:40 am
Nonstop2h 40m
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
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
Currently, August is the cheapest month in which you can book a flight from Denver to Illinois (average of $245). Flying from Denver to Illinois in March is currently the most expensive (average of $321). 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.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Denver to Illinois as you normally would.
The most flights from DEN to USIL are scheduled on a Thursday (66 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (22 on average).
Overall
Crew
Entertainment
Boarding
Food
Comfort
Reviews
John,May 2025
PVD - BNA
Overall
Crew
Entertainment
Boarding
Food
Comfort
Reviews
John,May 2025
PVD - BNA
Overall
Crew
Entertainment
Boarding
Food
Comfort
Reviews
John,May 2025
PVD - BNA
Overall
Crew
Entertainment
Boarding
Food
Comfort
Reviews
John,May 2025
PVD - BNA
Overall
Crew
Entertainment
Boarding
Food
Comfort
Reviews
John,May 2025
PVD - BNA
Overall
Crew
Entertainment
Boarding
Food
Comfort
Reviews
John,May 2025
PVD - BNA
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$54 | Average$169 | FlexibilityNo cancel fee | On-time62% | |
Cheapest$84 | Average$166 | FlexibilityNo cancel fee | On-time88% | |
Cheapest$151 | Average$402 | FlexibilityNo cancel fee | On-time71% | |
Cheapest$155 | Average$249 | FlexibilityNo cancel fee | On-time63% | |
Cheapest$159 | Average$364 | FlexibilityNo cancel fee | On-time69% |