$165+ Cheap flights from Chicago (CHI) to Great Falls (GTF)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/22. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — GTF
Aug 17 — Aug 241
Round-trip
1 adult, Economy
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Find cheap flights from Chicago to Great Falls 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Chicago to Great Falls
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Cheapest flights from Chicago to Great FallsExplore the most affordable flight options available from Chicago to Great Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 18, 2026.
Explore the most affordable flight options available from Chicago to Great Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 18, 2026.
This Delta deal was found by Cheapflights users on 7/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:45 am
ORD
- GTF
1 stop5h 50m
Delta
Sat 10/31:15 pm
GTF
- ORD
1 stop7h 37m
Delta
Deal found 7/14![Delta logo]()
$318
This Delta deal was found by Cheapflights users on 7/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/215:30 am
ORD
- GTF
2 stops13h 08m
Delta
Sat 8/291:08 pm
GTF
- ORD
2 stops9h 49m
Delta
Deal found 7/17![Delta logo]()
$329
This Delta deal was found by Cheapflights users on 7/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2110:54 am
MDW
- GTF
2 stops12h 44m
Delta
Sat 8/296:18 pm
GTF
- MDW
2 stops14h 41m
Delta
Deal found 7/17![Delta logo]()
$329
This United Airlines deal was found by Cheapflights users on 7/17. 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.
Fri 8/145:55 am
ORD
- GTF
1 stop8h 34m
United Airlines
Fri 8/212:25 pm
GTF
- ORD
1 stop6h 35m
United Airlines
Deal found 7/17![United Airlines logo]()
$341
This United Airlines deal was found by Cheapflights users on 7/13. 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 8/89:00 am
ORD
- GTF
Nonstop3h 46m
United Airlines
Sat 8/152:25 pm
GTF
- ORD
1 stop6h 27m
United Airlines
Deal found 7/13![United Airlines logo]()
$345
This Alaska Airlines deal was found by Cheapflights users on 7/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/198:00 am
ORD
- GTF
1 stop9h 39m
Alaska Airlines
Sat 9/265:19 pm
GTF
- ORD
1 stop12h 01m
Alaska Airlines
Deal found 7/13![Alaska Airlines logo]()
$348
This United Airlines deal was found by Cheapflights users on 7/13. 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 8/156:00 am
ORD
- GTF
1 stop8h 29m
United Airlines
Sat 8/222:25 pm
GTF
- ORD
1 stop6h 27m
United Airlines
Deal found 7/13![United Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 7/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:25 am
ORD
- GTF
2 stops10h 16m
Delta
Sun 10/41:15 pm
GTF
- ORD
1 stop7h 37m
Delta
Deal found 7/14![Delta logo]()
$354
This United Airlines deal was found by Cheapflights users on 7/14. 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.
Sun 8/165:55 am
ORD
- GTF
1 stop8h 34m
United Airlines
Sat 8/222:25 pm
GTF
- ORD
1 stop6h 05m
United Airlines
Deal found 7/14![United Airlines logo]()
$361
This United Airlines deal was found by Cheapflights users on 7/13. 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 8/89:00 am
ORD
- GTF
Nonstop3h 46m
United Airlines
Fri 8/142:25 pm
GTF
- ORD
1 stop6h 04m
United Airlines
Deal found 7/13![United Airlines logo]()
$376
This deal was found by Cheapflights users on 7/17. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:48 am
ORD
- GTF
1 stop5h 40m
Delta
Wed 8/265:40 am
GTF
- ORD
1 stop5h 19m
Delta
Deal found 7/17![Delta logo]()
$383
This Delta deal was found by Cheapflights users on 7/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/159:59 am
MDW
- GTF
2 stops8h 42m
Delta
Fri 9/186:21 pm
GTF
- MDW
2 stops20h 04m
Delta
Deal found 7/13![Delta logo]()
$599
Best flights from Chicago to Great FallsDiscover carefully curated flight deals from Chicago to Great Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 18, 2026.
Discover carefully curated flight deals from Chicago to Great Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 18, 2026.
This United Airlines deal was found by Cheapflights users on 7/17. 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 8/222:42 pm
ORD
- GTF
1 stop7h 30m
United Airlines
Sun 8/302:25 pm
GTF
- ORD
1 stop7h 21m
United Airlines
Deal found 7/17![United Airlines logo]()
$318
This Delta deal was found by Cheapflights users on 7/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2110:54 am
MDW
- GTF
2 stops12h 44m
Delta
Sat 8/296:18 pm
GTF
- MDW
2 stops14h 41m
Delta
Deal found 7/17![Delta logo]()
$329
This Alaska Airlines deal was found by Cheapflights users on 7/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/198:00 am
ORD
- GTF
1 stop9h 39m
Alaska Airlines
Sat 9/265:19 pm
GTF
- ORD
1 stop12h 01m
Alaska Airlines
Deal found 7/13![Alaska Airlines logo]()
$348
This Alaska Airlines deal was found by Cheapflights users on 7/18. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/248:00 am
ORD
- GTF
1 stop9h 39m
Alaska Airlines
Sun 9/275:19 pm
GTF
- ORD
1 stop12h 01m
Alaska Airlines
Deal found 7/18![Alaska Airlines logo]()
$423
This United Airlines deal was found by Cheapflights users on 7/15. 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.
Sun 9/135:55 am
ORD
- GTF
1 stop8h 34m
United Airlines
Mon 9/212:25 pm
GTF
- ORD
1 stop7h 21m
United Airlines
Deal found 7/15![United Airlines logo]()
$442
This Alaska Airlines deal was found by Cheapflights users on 7/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/136:00 am
ORD
- GTF
1 stop11h 39m
Alaska Airlines
Mon 9/215:19 pm
GTF
- ORD
1 stop12h 01m
Alaska Airlines
Deal found 7/14![Alaska Airlines logo]()
$423
This Delta deal was found by Cheapflights users on 7/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/159:59 am
MDW
- GTF
2 stops8h 42m
Delta
Mon 9/216:21 pm
GTF
- MDW
2 stops14h 29m
Delta
Deal found 7/13![Delta logo]()
$474
This Alaska Airlines deal was found by Cheapflights users on 7/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/249:00 am
ORD
- GTF
1 stop8h 35m
Alaska Airlines
Sat 10/315:15 pm
GTF
- ORD
2 stops20h 08m
Alaska Airlines
Deal found 7/16![Alaska Airlines logo]()
$432
This Delta deal was found by Cheapflights users on 7/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/147:40 pm
ORD
- GTF
1 stop23h 01m
Delta
Sat 9/191:15 pm
GTF
- ORD
1 stop7h 37m
Delta
Deal found 7/13![Delta logo]()
$480
This Alaska Airlines deal was found by Cheapflights users on 7/17. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:00 am
ORD
- GTF
1 stop11h 35m
Alaska Airlines
Wed 11/44:57 pm
GTF
- ORD
1 stop11h 43m
Alaska Airlines
Deal found 7/17![Alaska Airlines logo]()
$448
This Alaska Airlines deal was found by Cheapflights users on 7/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/411:30 am
ORD
- GTF
2 stops30h 15m
Alaska Airlines
Mon 9/75:25 pm
GTF
- ORD
2 stops26h 03m
Alaska Airlines
Deal found 7/15![Alaska Airlines logo]()
$459
This Delta deal was found by Cheapflights users on 7/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/199:29 am
MDW
- GTF
2 stops9h 12m
Delta
Sat 9/266:21 pm
GTF
- MDW
2 stops14h 29m
Delta
Deal found 7/17![Delta logo]()
$619
This Delta deal was found by Cheapflights users on 7/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/156:11 am
MDW
- GTF
2 stops12h 27m
Delta
Sat 8/225:40 am
GTF
- MDW
2 stops8h 58m
Delta
Deal found 7/15![Delta logo]()
$684
This Delta deal was found by Cheapflights users on 7/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/251:25 pm
MDW
- GTF
2 stops10h 13m
Delta
Wed 9/25:40 am
GTF
- MDW
2 stops11h 21m
Delta
Deal found 7/14![Delta logo]()
$699
This Delta deal was found by Cheapflights users on 7/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/291:25 pm
MDW
- GTF
2 stops10h 13m
Delta
Sat 9/55:40 am
GTF
- MDW
2 stops9h 17m
Delta
Deal found 7/15![Delta logo]()
$839
This Delta deal was found by Cheapflights users on 7/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/171:25 pm
MDW
- GTF
2 stops10h 13m
Delta
Fri 8/286:18 pm
GTF
- MDW
2 stops14h 52m
Delta
Deal found 7/13![Delta logo]()
$844
Last-minute flights from Chicago to Great FallsDiscover last-minute flight deals from Chicago to Great Falls. Data last updated July 18, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Great Falls. Data last updated July 18, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 7/13. 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 8/89:00 am
ORD
- GTF
Nonstop3h 46m
United Airlines
Sat 8/152:25 pm
GTF
- ORD
1 stop6h 27m
United Airlines
Deal found 7/13![United Airlines logo]()
$345
This United Airlines deal was found by Cheapflights users on 7/13. 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 8/89:00 am
ORD
- GTF
Nonstop3h 46m
United Airlines
Fri 8/142:25 pm
GTF
- ORD
1 stop6h 04m
United Airlines
Deal found 7/13![United Airlines logo]()
$376
This United Airlines deal was found by Cheapflights users on 7/17. 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.
Fri 8/145:55 am
ORD
- GTF
1 stop8h 34m
United Airlines
Fri 8/212:25 pm
GTF
- ORD
1 stop6h 35m
United Airlines
Deal found 7/17![United Airlines logo]()
$341
This United Airlines deal was found by Cheapflights users on 7/13. 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 8/156:00 am
ORD
- GTF
1 stop8h 29m
United Airlines
Sat 8/222:25 pm
GTF
- ORD
1 stop6h 27m
United Airlines
Deal found 7/13![United Airlines logo]()
$349
This United Airlines deal was found by Cheapflights users on 7/14. 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.
Sun 8/165:55 am
ORD
- GTF
1 stop8h 34m
United Airlines
Sat 8/222:25 pm
GTF
- ORD
1 stop6h 05m
United Airlines
Deal found 7/14![United Airlines logo]()
$361
This deal was found by Cheapflights users on 7/17. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:48 am
ORD
- GTF
1 stop5h 40m
Delta
Tue 8/255:40 am
GTF
- ORD
1 stop5h 19m
Delta
Deal found 7/17![Delta logo]()
$318
This deal was found by Cheapflights users on 7/17. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:48 am
ORD
- GTF
1 stop5h 40m
Delta
Mon 8/245:40 am
GTF
- ORD
1 stop5h 19m
Delta
Deal found 7/17![Delta logo]()
$348
This deal was found by Cheapflights users on 7/17. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:48 am
ORD
- GTF
1 stop5h 40m
Delta
Wed 8/265:40 am
GTF
- ORD
1 stop5h 19m
Delta
Deal found 7/17![Delta logo]()
$383
This Delta deal was found by Cheapflights users on 7/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2110:54 am
MDW
- GTF
2 stops12h 44m
Delta
Sat 8/296:18 pm
GTF
- MDW
2 stops14h 41m
Delta
Deal found 7/17![Delta logo]()
$329
This Delta deal was found by Cheapflights users on 7/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/215:30 am
ORD
- GTF
2 stops13h 08m
Delta
Sat 8/291:08 pm
GTF
- ORD
2 stops9h 49m
Delta
Deal found 7/17![Delta logo]()
$329
This Delta deal was found by Cheapflights users on 7/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/228:28 am
ORD
- GTF
2 stops10h 10m
Delta
Sun 8/305:40 am
GTF
- ORD
1 stop5h 19m
Delta
Deal found 7/15![Delta logo]()
$324
This Alaska Airlines deal was found by Cheapflights users on 7/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:00 am
ORD
- GTF
1 stop11h 38m
Alaska Airlines
Sat 9/55:25 pm
GTF
- ORD
1 stop11h 55m
Alaska Airlines
Deal found 7/15![Alaska Airlines logo]()
$393
One-way flights from Chicago to Great FallsSearch for one-way flight options from Chicago to Great Falls. Find affordable one-way fares based on user searches. Data last updated July 18, 2026.
Search for one-way flight options from Chicago to Great Falls. Find affordable one-way fares based on user searches. Data last updated July 18, 2026.
This Alaska Airlines deal was found by Cheapflights users on 7/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:00 am
ORD
- GTF
1 stop11h 38m
Alaska Airlines
Deal found 7/14![Alaska Airlines logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 7/13. 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.
Thu 8/67:29 am
ORD
- GTF
1 stop27h 00m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 7/13. 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.
Wed 8/59:57 pm
ORD
- GTF
2 stops36h 32m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$182
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 8/167:29 am
ORD
- GTF
1 stop27h 00m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$249
This Kiwi.com deal was found by Cheapflights users on 7/13. 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 8/97:29 am
ORD
- GTF
1 stop27h 00m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$265
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 8/166:05 am
MDW
- GTF
2 stops28h 24m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$268
This Kiwi.com deal was found by Cheapflights users on 7/13. 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 8/89:57 pm
ORD
- GTF
2 stops36h 32m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$272
This Delta deal was found by Cheapflights users on 7/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/84:45 pm
ORD
- GTF
1 stop6h 53m
Delta
Deal found 7/13![Delta logo]()
$288
This Kiwi.com deal was found by Cheapflights users on 7/18. 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 7/251:50 pm
ORD
- GTF
2 stops31h 30m
Multiple Airlines
Deal found 7/18![Multiple Airlines logo]()
$291
This Delta deal was found by Cheapflights users on 7/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/229:24 am
MDW
- GTF
2 stops9h 14m
Delta
Deal found 7/14![Delta logo]()
$294
This Delta deal was found by Cheapflights users on 7/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/228:28 am
ORD
- GTF
2 stops10h 10m
Delta
Deal found 7/14![Delta logo]()
$294
This United Airlines deal was found by Cheapflights users on 7/13. 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 8/89:00 am
ORD
- GTF
Nonstop3h 46m
United Airlines
Deal found 7/13![United Airlines logo]()
$324
Find flight deals from Chicago to Great Falls
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 July 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $318 (Delta) |
One-way from | $165 (Alaska Airlines) |
Popular in | January |
Cheapest in | December |
Average price | $558 |
Good round-trip deal | $558 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Chicago to Great Falls 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 2,558,603 searches. Data last updated July 18, 2026.
Use the filters below to find and compare flights from Chicago to Great Falls that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
ChicagoGreat Falls
ORD - GTF
ORDGTF
Chicago O'Hare Intl
Sat 8/22
2:42 pm-9:12 pm
1 stop7h 30m
Great Falls
Sun 8/30
2:25 pm-10:46 pm
1 stop7h 21m
$318
ChicagoGreat Falls
MDW - GTF
MDWGTF
Chicago Midway
Fri 8/21
10:54 am-10:38 pm
2 stops12h 44m
Great Falls
Sat 8/29
6:18 pm-9:59 am
2 stops14h 41m
$329
ChicagoGreat Falls
ORD - GTF
ORDGTF
Chicago O'Hare Intl
Sat 9/19
8:00 am-4:39 pm
1 stop9h 39m
Great Falls
Sat 9/26
5:19 pm-6:20 am
1 stop12h 01m
$348
ChicagoGreat Falls
ORD - GTF
ORDGTF
Chicago O'Hare Intl
Thu 9/24
8:00 am-4:39 pm
1 stop9h 39m
Great Falls
Sun 9/27
5:19 pm-6:20 am
1 stop12h 01m
$423
ChicagoGreat Falls
ORD - GTF
ORDGTF
Chicago O'Hare Intl
Sun 9/13
6:00 am-4:39 pm
1 stop11h 39m
Great Falls
Mon 9/21
5:19 pm-6:20 am
1 stop12h 01m
$423
ChicagoGreat Falls
ORD - GTF
ORDGTF
Chicago O'Hare Intl
Sat 10/24
9:00 am-4:35 pm
1 stop8h 35m
Great Falls
Sat 10/31
5:15 pm-2:23 pm
2 stops20h 08m
$432
ChicagoGreat Falls
ORD - GTF
ORDGTF
Chicago O'Hare Intl
Sun 9/13
5:55 am-1:29 pm
1 stop8h 34m
Great Falls
Mon 9/21
2:25 pm-10:46 pm
1 stop7h 21m
$442
ChicagoGreat Falls
ORD - GTF
ORDGTF
Chicago O'Hare Intl
Sat 10/31
6:00 am-4:35 pm
1 stop11h 35m
Great Falls
Wed 11/4
4:57 pm-5:40 am
1 stop11h 43m
$448
ChicagoGreat Falls
ORD - GTF
ORDGTF
Chicago O'Hare Intl
Fri 9/4
11:30 am-4:45 pm
2 stops30h 15m
Great Falls
Mon 9/7
5:25 pm-8:28 pm
2 stops26h 03m
$459
ChicagoGreat Falls
MDW - GTF
MDWGTF
Chicago Midway
Tue 9/15
9:59 am-5:41 pm
2 stops8h 42m
Great Falls
Mon 9/21
6:21 pm-9:50 am
2 stops14h 29m
$474
Showing 1-10 of 30 resultsSorted by cheapest first
Compare providers for flights from Chicago to Great Falls
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chicago to Great Falls in July.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Chicago-Great Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago-Great Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago-Great Falls flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Chicago-Great Falls flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-Great Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Chicago to Great Falls
Have a flexible travel schedule? Discover the best time to fly to Great Falls from Chicago with our price prediction graph.
CHI-GTF
ORD-GTF
MDW-GTF
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 Chicago to Great Falls
CHI-GTF
ORD-GTF
MDW-GTF
What is the cheapest month to book a flight from Chicago to Great Falls?
Currently, February is the cheapest month in which you can book a flight from Chicago to Great Falls (average of $264). Flying from Chicago to Great Falls in January is currently the most expensive (average of $1,809). 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 CHI to GTF?
Find hourly flight availability from Chicago to Great Falls. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 18, 2026.
When flying from Chicago to Great Falls, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Reviews of airlines servicing Great Falls
Get insights into the airlines that provide service to Great Falls. 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 Great Falls. Reviews last updated July 18, 2026.
Peruse reviews from past customers who have flown with Delta and United Airlines from Chicago to Great Falls to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Overall
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Overall
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Overall
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
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.
Traveling to a place near Great Falls?
Book flights to Great Falls if you plan to visit one of these locationsShelby
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Top 2 airlines flying from Chicago to Great Falls
Discover the top 2 airlines that operate flights from Chicago to Great Falls. 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 2,558,603 searches. Data last updated July 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$275 | Average$505 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$318 | Average$413 | FlexibilityNo cancel fee | On-timeN/A |