
Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Great Falls (GTF). 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 November 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $378 (United Airlines) |
One-way from | $195 (Alaska Airlines) |
Good round-trip deal | $558 or less |
Fly from
Fly to
Route
Depart
Return
ChicagoGreat Falls
ORD Chicago O'Hare Intl - GTF Great Falls
ORDGTF
Chicago O'Hare Intl
Fri 12/11
6:47 pm-4:11 pm
1 stop22h 24m
Great Falls
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
ChicagoGreat Falls
ORD Chicago O'Hare Intl - GTF Great Falls
ORDGTF
Chicago O'Hare Intl
Fri 3/12
7:00 am-3:20 pm
1 stop9h 20m
Great Falls
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
ChicagoGreat Falls
ORD Chicago O'Hare Intl - GTF Great Falls
ORDGTF
Chicago O'Hare Intl
Sat 3/13
8:45 am-1:29 pm
1 stop5h 44m
Great Falls
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
ChicagoGreat Falls
ORD Chicago O'Hare Intl - GTF Great Falls
ORDGTF
Chicago O'Hare Intl
Fri 12/11
4:07 pm-9:13 pm
1 stop6h 06m
Great Falls
Sun 12/13
2:47 pm-11:59 pm
1 stop8h 12m
ChicagoGreat Falls
ORD Chicago O'Hare Intl - GTF Great Falls
ORDGTF
Chicago O'Hare Intl
Wed 12/9
2:04 pm-10:29 pm
1 stop9h 25m
Great Falls
Sun 12/13
5:35 am-12:03 pm
1 stop5h 28m
ChicagoGreat Falls
ORD Chicago O'Hare Intl - GTF Great Falls
ORDGTF
Chicago O'Hare Intl
Fri 12/11
2:04 pm-10:29 pm
1 stop9h 25m
Great Falls
Sun 12/13
5:35 am-4:43 pm
2 stops10h 08m
ChicagoGreat Falls
ORD Chicago O'Hare Intl - GTF Great Falls
ORDGTF
Chicago O'Hare Intl
Fri 3/12
5:40 am-9:29 pm
2 stops16h 49m
Great Falls
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
ChicagoGreat Falls
ORD Chicago O'Hare Intl - GTF Great Falls
ORDGTF
Chicago O'Hare Intl
Sat 1/23
8:00 am-3:28 pm
1 stop8h 28m
Great Falls
Wed 1/27
4:08 pm-11:59 pm
1 stop6h 51m
ChicagoGreat Falls
ORD Chicago O'Hare Intl - GTF Great Falls
ORDGTF
Chicago O'Hare Intl
Sat 11/21
3:56 pm-9:38 pm
1 stop6h 42m
Great Falls
Wed 11/25
2:45 pm-11:59 pm
1 stop8h 14m
ChicagoGreat Falls
ORD Chicago O'Hare Intl - GTF Great Falls
ORDGTF
Chicago O'Hare Intl
Mon 11/23
9:59 am-5:39 pm
2 stops8h 40m
Great Falls
Fri 11/27
1:21 pm-9:47 pm
1 stop7h 26m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
Everything you need to know about your flight from Chicago to Great Falls
Entertainment
Food
Boarding
Crew
Comfort
Overall
Reviews
Ellen,Oct 2026
GRR - ATL
Entertainment
Food
Boarding
Crew
Comfort
Overall
Reviews
Ellen,Oct 2026
GRR - ATL
Entertainment
Food
Boarding
Crew
Comfort
Overall
Reviews
Ellen,Oct 2026
GRR - ATL
Find useful and relevant information for your journey from Chicago to Great Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$318 | Average$383 | FlexibilityNo cancel fee | On-timeN/A |