
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $291 (Delta) |
One-way from | $100 (Kiwi.com) |
Popular in | November |
Cheapest in | January |
Average price | $278 |
Good round-trip deal | $457 or less |
Good one-way deal | $290 or less |
Fly from
Fly to
Route
Depart
Return
Price
BillingsChicago
BIL - MDW
BILMDW
Billings Logan Intl
Thu 2/26
6:15 am-1:08 pm
1 stop5h 53m
Chicago Midway
Mon 3/2
6:45 pm-10:50 pm
1 stop5h 05m
BillingsChicago
BIL - ORD
BILORD
Billings Logan Intl
Thu 1/15
2:45 pm-11:59 pm
1 stop8h 14m
Chicago O'Hare Intl
Tue 1/20
3:59 pm-9:23 pm
1 stop6h 24m
BillingsChicago
BIL - ORD
BILORD
Billings Logan Intl
Fri 2/13
5:40 am-12:26 pm
1 stop5h 46m
Chicago O'Hare Intl
Mon 2/16
7:00 pm-10:50 pm
1 stop4h 50m
BillingsChicago
BIL - ORD
BILORD
Billings Logan Intl
Thu 2/26
6:15 am-11:33 am
1 stop4h 18m
Chicago O'Hare Intl
Mon 3/2
7:00 pm-10:50 pm
1 stop4h 50m
BillingsSt. Louis
BIL - STL
BILSTL
Billings Logan Intl
Wed 12/10
6:22 pm-1:01 am
1 stop5h 39m
Lambert-St Louis
Wed 12/17
5:34 pm-11:48 pm
1 stop7h 14m
BillingsSt. Louis
BIL - STL
BILSTL
Billings Logan Intl
Tue 4/7
11:35 am-5:59 pm
1 stop5h 24m
Lambert-St Louis
Wed 4/8
3:50 pm-10:50 pm
1 stop8h 00m
BillingsSt. Louis
BIL - STL
BILSTL
Billings Logan Intl
Thu 12/11
5:14 am-1:30 pm
1 stop7h 16m
Lambert-St Louis
Tue 12/16
6:30 am-11:07 am
1 stop5h 37m
BillingsSt. Louis
BIL - STL
BILSTL
Billings Logan Intl
Sun 12/14
5:14 am-1:30 pm
1 stop7h 16m
Lambert-St Louis
Thu 12/18
5:34 pm-11:48 pm
1 stop7h 14m
BillingsSt. Louis
BIL - STL
BILSTL
Billings Logan Intl
Thu 12/11
6:22 pm-12:48 am
1 stop5h 26m
Lambert-St Louis
Mon 12/15
5:34 pm-11:48 pm
1 stop7h 14m
BillingsSt. Louis
BIL - STL
BILSTL
Billings Logan Intl
Fri 12/12
6:22 pm-12:48 am
1 stop5h 26m
Lambert-St Louis
Tue 12/16
5:34 pm-11:48 pm
1 stop7h 14m
Currently, September is the cheapest month in which you can book a flight from Billings to Illinois (average of $217). Flying from Billings to Illinois in February is currently the most expensive (average of $597). 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.
When flying from Billings to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Food
Boarding
Comfort
Entertainment
Overall
Crew
Reviews
Matthew,Oct 2025
GSP - ATL
Food
Boarding
Comfort
Entertainment
Overall
Crew
Reviews
Matthew,Oct 2025
GSP - ATL
Food
Boarding
Comfort
Entertainment
Overall
Crew
Reviews
Matthew,Oct 2025
GSP - ATL
Food
Boarding
Comfort
Entertainment
Overall
Crew
Reviews
Matthew,Oct 2025
GSP - ATL
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$225 | Average$371 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$239 | Average$413 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$248 | Average$500 | FlexibilityNo cancel fee | On-timeN/A |