
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $227 (Southwest) |
One-way from | $109 (Trip.com) |
Popular in | November |
Cheapest in | February |
Average price | $370 |
Good round-trip deal | $369 or less |
Good one-way deal | $201 or less |
Fly from
Fly to
Route
Depart
Return
ChicagoSpokane
ORD - GEG
ORDGEG
Chicago O'Hare Intl
Sat 8/22
7:00 am-11:52 am
1 stop6h 52m
Spokane
Sat 8/29
7:00 am-11:57 pm
1 stop14h 57m
ChicagoSpokane
ORD - GEG
ORDGEG
Chicago O'Hare Intl
Sat 5/30
9:00 am-9:45 pm
1 stop14h 45m
Spokane
Tue 6/2
7:01 am-6:50 pm
1 stop9h 49m
ChicagoSpokane
ORD - GEG
ORDGEG
Chicago O'Hare Intl
Tue 6/2
2:10 pm-9:45 pm
1 stop9h 35m
Spokane
Thu 6/4
7:01 am-11:55 pm
1 stop14h 54m
ChicagoSpokane
ORD - GEG
ORDGEG
Chicago O'Hare Intl
Wed 8/12
7:59 pm-11:07 pm
1 stop29h 08m
Spokane
Sat 8/22
7:00 am-11:57 pm
1 stop14h 57m
St. LouisBoise
STL - BOI
STLBOI
Lambert-St Louis
Tue 8/4
5:00 pm-11:20 pm
1 stop7h 20m
Boise Air Term. Gowen Fld
Tue 8/18
2:20 pm-10:45 pm
1 stop7h 25m
ChicagoSpokane
ORD - GEG
ORDGEG
Chicago O'Hare Intl
Tue 5/26
5:41 pm-11:06 pm
1 stop7h 25m
Spokane
Thu 5/28
1:11 pm-11:57 pm
1 stop8h 46m
ChicagoSpokane
ORD - GEG
ORDGEG
Chicago O'Hare Intl
Tue 6/16
7:45 am-3:42 pm
2 stops9h 57m
Spokane
Wed 6/17
1:19 pm-9:57 pm
1 stop6h 38m
ChicagoSpokane
ORD - GEG
ORDGEG
Chicago O'Hare Intl
Fri 5/29
6:20 pm-10:51 pm
1 stop6h 31m
Spokane
Sat 6/6
5:39 pm-8:05 am
2 stops12h 26m
ChicagoSpokane
MDW - GEG
MDWGEG
Chicago Midway
Fri 5/29
7:13 pm-11:06 pm
1 stop5h 53m
Spokane
Sat 6/6
6:10 am-5:56 pm
2 stops9h 46m
St. LouisSpokane
STL - GEG
STLGEG
Lambert-St Louis
Tue 5/26
5:33 pm-11:06 pm
1 stop7h 33m
Spokane
Wed 5/27
5:00 am-3:16 pm
1 stop8h 16m
The best time to book flights from Illinois to Idaho is 70 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.
Currently, May is the cheapest month in which you can book a flight from Illinois to Idaho (average of $87). Flying from Illinois to Idaho in March is currently the most expensive (average of $268). 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.
It’s typically best to fly out from Illinois to Idaho at noon. Doing so could potentially save you 27% on the flight price compared to flying in the afternoon, which is usually more expensive.
The most flights from USIL to USID are scheduled on a Monday (8 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).
Food
Entertainment
Comfort
Crew
Overall
Boarding
Reviews
Dominic,Mar 2026
MCO - SMF
Food
Entertainment
Comfort
Crew
Overall
Boarding
Reviews
Dominic,Mar 2026
MCO - SMF
Food
Entertainment
Comfort
Crew
Overall
Boarding
Reviews
Dominic,Mar 2026
MCO - SMF
Food
Entertainment
Comfort
Crew
Overall
Boarding
Reviews
Dominic,Mar 2026
MCO - SMF
Food
Entertainment
Comfort
Crew
Overall
Boarding
Reviews
Dominic,Mar 2026
MCO - SMF
Food
Entertainment
Comfort
Crew
Overall
Boarding
Reviews
Dominic,Mar 2026
MCO - SMF
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$174 | Average$337 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$249 | Average$490 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$254 | Average$378 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$268 | Average$440 | FlexibilityNo cancel fee | On-time71% |