$328+ Cheap flights from Chicago (CHI) to Great Falls (GTF)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/6. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — GTF
Sep 17 — Sep 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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Best
Last-minute
One-way
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 August 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 August 18, 2026.
This Delta deal was found by Cheapflights users on 8/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/67:48 am -
1 stop5h 40m
Sat 9/191:15 pm -
1 stop7h 45m
Deal found 8/16![Delta logo]()
$328
This Delta deal was found by Cheapflights users on 8/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/197:45 am -
1 stop5h 50m
Sat 9/265:40 am -
2 stops10h 19m
Deal found 8/18![Delta logo]()
$334
This United Airlines deal was found by Cheapflights users on 8/17. 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 9/194:26 pm -
1 stop5h 46m
Mon 9/212:25 pm -
1 stop6h 34m
Deal found 8/17![United Airlines logo]()
$349
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Fri 9/41:30 pm -
1 stop8h 42m
Sun 9/62:25 pm -
1 stop6h 35m
Deal found 8/14![United Airlines logo]()
$363
This Delta deal was found by Cheapflights users on 8/17. 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 9/192:00 pm -
2 stops9h 37m
Mon 9/211:15 pm -
1 stop7h 40m
Deal found 8/17![Delta logo]()
$364
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Sat 8/293:56 pm -
1 stop6h 16m
Wed 9/26:15 am -
1 stop7h 45m
Deal found 8/14![United Airlines logo]()
$398
This Delta deal was found by Cheapflights users on 8/17. 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 9/191:19 pm -
2 stops10h 18m
Sat 9/266:21 pm -
2 stops14h 29m
Deal found 8/17![Delta logo]()
$549
This Delta deal was found by Cheapflights users on 8/15. 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.
Mon 8/171:25 pm -
2 stops10h 13m
Fri 8/285:40 am -
2 stops11h 53m
Deal found 8/15![Delta logo]()
$759
This Delta deal was found by Cheapflights users on 8/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/251:19 pm -
2 stops10h 18m
Sat 9/265:40 am -
2 stops11h 19m
Deal found 8/16![Delta logo]()
$899
This Delta deal was found by Cheapflights users on 8/17. 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 9/191:19 pm -
2 stops10h 18m
Mon 9/215:40 am -
2 stops11h 53m
Deal found 8/17![Delta logo]()
$1,104
This Delta deal was found by Cheapflights users on 8/14. 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 8/291:25 pm -
2 stops10h 13m
Wed 9/25:40 am -
2 stops11h 21m
Deal found 8/14![Delta logo]()
$1,159
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 August 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 August 18, 2026.
This Delta deal was found by Cheapflights users on 8/13. 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 9/198:25 am -
2 stops10h 16m
Sat 9/265:40 am -
1 stop5h 15m
Deal found 8/13![Delta logo]()
$334
This United Airlines deal was found by Cheapflights users on 8/17. 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 9/194:26 pm -
1 stop5h 46m
Mon 9/212:25 pm -
1 stop6h 34m
Deal found 8/17![United Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 8/17. 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 9/192:00 pm -
2 stops9h 37m
Mon 9/211:15 pm -
1 stop7h 40m
Deal found 8/17![Delta logo]()
$364
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Sat 8/293:56 pm -
1 stop6h 16m
Wed 9/26:15 am -
1 stop7h 45m
Deal found 8/14![United Airlines logo]()
$398
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Fri 8/283:56 pm -
1 stop6h 16m
Sun 8/306:15 am -
1 stop6h 14m
Deal found 8/14![United Airlines logo]()
$415
This United Airlines deal was found by Cheapflights users on 8/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/247:00 am -
1 stop7h 41m
Sat 10/312:45 pm -
1 stop5h 45m
Deal found 8/16![United Airlines logo]()
$418
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Wed 10/212:30 pm -
1 stop7h 52m
Sat 10/242:37 pm -
1 stop6h 15m
Deal found 8/13![United Airlines logo]()
$418
This Delta deal was found by Cheapflights users on 8/17. 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 9/191:19 pm -
2 stops10h 18m
Sat 9/266:21 pm -
2 stops14h 29m
Deal found 8/17![Delta logo]()
$549
This United Airlines deal was found by Cheapflights users on 8/17. 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 9/185:55 am -
1 stop8h 34m
Sun 9/206:15 am -
1 stop6h 05m
Deal found 8/17![United Airlines logo]()
$460
This Delta deal was found by Cheapflights users on 8/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/251:19 pm -
2 stops10h 18m
Sat 9/265:40 am -
2 stops11h 19m
Deal found 8/16![Delta logo]()
$899
This Delta deal was found by Cheapflights users on 8/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/182:00 pm -
2 stops9h 37m
Sat 9/265:40 am -
2 stops11h 19m
Deal found 8/18![Delta logo]()
$939
This Delta deal was found by Cheapflights users on 8/17. 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 9/191:19 pm -
2 stops10h 18m
Fri 9/255:40 am -
2 stops11h 53m
Deal found 8/17![Delta logo]()
$1,104
This Delta deal was found by Cheapflights users on 8/17. 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 9/191:19 pm -
2 stops10h 18m
Mon 9/215:40 am -
2 stops11h 53m
Deal found 8/17![Delta logo]()
$1,104
This Delta deal was found by Cheapflights users on 8/14. 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 8/291:25 pm -
2 stops10h 13m
Wed 9/25:40 am -
2 stops11h 21m
Deal found 8/14![Delta logo]()
$1,159
This Delta deal was found by Cheapflights users on 8/14. 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 9/286:05 am -
2 stops12h 36m
Mon 10/55:40 am -
2 stops11h 53m
Deal found 8/14![Delta logo]()
$1,409
Last-minute flights from Chicago to Great FallsDiscover last-minute flight deals from Chicago to Great Falls. Data last updated August 18, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Great Falls. Data last updated August 18, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Sat 8/293:56 pm -
1 stop6h 16m
Wed 9/26:15 am -
1 stop7h 45m
Deal found 8/14![United Airlines logo]()
$398
This Delta deal was found by Cheapflights users on 8/14. 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 8/291:25 pm -
2 stops10h 13m
Wed 9/25:40 am -
2 stops11h 21m
Deal found 8/14![Delta logo]()
$1,159
This Delta deal was found by Cheapflights users on 8/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/21:51 pm -
2 stops9h 38m
Sun 9/65:40 am -
2 stops9h 04m
Deal found 8/18![Delta logo]()
$734
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Fri 9/41:30 pm -
1 stop8h 42m
Sun 9/62:25 pm -
1 stop6h 35m
Deal found 8/14![United Airlines logo]()
$363
This Delta deal was found by Cheapflights users on 8/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/67:48 am -
1 stop5h 40m
Sat 9/191:15 pm -
1 stop7h 45m
Deal found 8/16![Delta logo]()
$328
This Delta deal was found by Cheapflights users on 8/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/182:00 pm -
2 stops9h 37m
Sat 9/265:40 am -
2 stops11h 19m
Deal found 8/18![Delta logo]()
$939
This Delta deal was found by Cheapflights users on 8/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/197:45 am -
1 stop5h 50m
Sat 9/265:40 am -
2 stops10h 19m
Deal found 8/18![Delta logo]()
$334
This United Airlines deal was found by Cheapflights users on 8/17. 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 9/194:26 pm -
1 stop5h 46m
Mon 9/212:25 pm -
1 stop6h 34m
Deal found 8/17![United Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 8/17. 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 9/192:00 pm -
2 stops9h 37m
Mon 9/211:15 pm -
1 stop7h 40m
Deal found 8/17![Delta logo]()
$364
This Delta deal was found by Cheapflights users on 8/17. 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 9/191:19 pm -
2 stops10h 18m
Sat 9/266:21 pm -
2 stops14h 29m
Deal found 8/17![Delta logo]()
$549
This Delta deal was found by Cheapflights users on 8/17. 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 9/191:19 pm -
2 stops10h 18m
Mon 9/215:40 am -
2 stops11h 53m
Deal found 8/17![Delta logo]()
$1,104
This Delta deal was found by Cheapflights users on 8/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/251:19 pm -
2 stops10h 18m
Sat 9/265:40 am -
2 stops11h 19m
Deal found 8/16![Delta logo]()
$899
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 August 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 August 18, 2026.
This CheapTickets.ch deal was found by Cheapflights users on 8/14. 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 CheapTickets.ch is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/49:00 am -
1 stop8h 35m
Deal found 8/14![Alaska Airlines logo]()
$342
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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.
Sun 9/2711:10 am -
2 stops30h 29m
Deal found 8/13![Alaska Airlines logo]()
$429
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/45:30 pm -
3 stops48h 05m
Deal found 8/14![Multiple Airlines logo]()
$555
This Delta deal was found by Cheapflights users on 8/14. 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.
Sun 10/41:19 pm -
2 stops10h 18m
Deal found 8/14![Delta logo]()
$590
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/46:46 pm -
3 stops46h 49m
Deal found 8/14![Multiple Airlines logo]()
$694
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 August 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $328 (Delta) |
Popular in | January |
Cheapest in | December |
Average price | $521 |
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 August 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
ChicagoGreat Falls
ORD Chicago O'Hare Intl - GTF Great Falls
ORDGTF
Chicago O'Hare Intl
Sat 9/19
8:25 am-5:41 pm
2 stops10h 16m
Great Falls
Sat 9/26
5:40 am-11:55 am
1 stop5h 15m
$334
Quickest round-trip
ChicagoGreat Falls
ORD Chicago O'Hare Intl - GTF Great Falls
ORDGTF
Chicago O'Hare Intl
Sat 9/19
4:26 pm-9:12 pm
1 stop5h 46m
Great Falls
Mon 9/21
2:25 pm-9:59 pm
1 stop6h 34m
$349
ChicagoGreat Falls
ORD Chicago O'Hare Intl - GTF Great Falls
ORDGTF
Chicago O'Hare Intl
Sat 9/19
2:00 pm-10:37 pm
2 stops9h 37m
Great Falls
Mon 9/21
1:15 pm-9:55 pm
1 stop7h 40m
$364
ChicagoGreat Falls
ORD Chicago O'Hare Intl - GTF Great Falls
ORDGTF
Chicago O'Hare Intl
Sat 8/29
3:56 pm-9:12 pm
1 stop6h 16m
Great Falls
Wed 9/2
6:15 am-3:00 pm
1 stop7h 45m
$398
ChicagoGreat Falls
ORD Chicago O'Hare Intl - GTF Great Falls
ORDGTF
Chicago O'Hare Intl
Fri 8/28
3:56 pm-9:12 pm
1 stop6h 16m
Great Falls
Sun 8/30
6:15 am-1:29 pm
1 stop6h 14m
$415
ChicagoGreat Falls
ORD Chicago O'Hare Intl - GTF Great Falls
ORDGTF
Chicago O'Hare Intl
Sat 10/24
7:00 am-1:41 pm
1 stop7h 41m
Great Falls
Sat 10/31
2:45 pm-9:30 pm
1 stop5h 45m
$418
ChicagoGreat Falls
ORD Chicago O'Hare Intl - GTF Great Falls
ORDGTF
Chicago O'Hare Intl
Wed 10/21
2:30 pm-9:22 pm
1 stop7h 52m
Great Falls
Sat 10/24
2:37 pm-9:52 pm
1 stop6h 15m
$418
ChicagoGreat Falls
ORD Chicago O'Hare Intl - GTF Great Falls
ORDGTF
Chicago O'Hare Intl
Fri 9/18
5:55 am-1:29 pm
1 stop8h 34m
Great Falls
Sun 9/20
6:15 am-1:20 pm
1 stop6h 05m
$460
ChicagoGreat Falls
MDW Chicago Midway - GTF Great Falls
MDWGTF
Chicago Midway
Sat 9/19
1:19 pm-10:37 pm
2 stops10h 18m
Great Falls
Sat 9/26
6:21 pm-9:50 am
2 stops14h 29m
$549
ChicagoGreat Falls
MDW Chicago Midway - GTF Great Falls
MDWGTF
Chicago Midway
Fri 9/25
1:19 pm-10:37 pm
2 stops10h 18m
Great Falls
Sat 9/26
5:40 am-5:59 pm
2 stops11h 19m
$899
Showing 1-10 of 19 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 August.
| 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.
How much does it cost to fly round-trip from Chicago to Great Falls?
Airfare is below average for this route at the moment.
Chicago to Great Falls flights typically cost between $519 and $529 in September.The cheapest round-trip price found within the last 5 days was $328 on Delta (Sep 6-Sep 19).
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 August 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.
Overall
7.8
Comfort
7.8
Crew
8.5
Boarding
8.1
Food
7.2
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Comfort
7.8
Crew
8.5
Boarding
8.1
Food
7.2
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Comfort
7.8
Crew
8.5
Boarding
8.1
Food
7.2
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$318 | Average$413 | FlexibilityNo cancel fee | On-timeN/A |