$333+ Cheap flights from Great Falls (GTF) to Chicago (CHI)
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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — CHI
Nov 12 — Nov 191
Round-trip
1 adult, Economy
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Find cheap flights from Great Falls to Chicago 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
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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 Great Falls to Chicago
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Cheapest flights from Great Falls to ChicagoExplore the most affordable flight options available from Great Falls to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 13, 2026.
Explore the most affordable flight options available from Great Falls to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 13, 2026.
This Delta deal was found by Cheapflights users on 10/11. 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 11/15:40 am -
1 stop5h 15m
Sat 11/74:00 pm -
1 stop7h 30m
Deal found 10/11![Delta logo]()
$348
This United Airlines deal was found by Cheapflights users on 10/8. 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.
Thu 11/52:45 pm -
1 stop8h 14m
Thu 11/124:20 pm -
1 stop6h 18m
Deal found 10/8![United Airlines logo]()
$369
This Gotogate deal was found by Cheapflights users on 10/8. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/135:10 pm -
1 stop11h 30m
Mon 11/166:35 pm -
1 stop22h 55m
Deal found 10/8![Alaska Airlines logo]()
$394
This Delta deal was found by Cheapflights users on 10/8. 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 10/231:18 pm -
1 stop7h 47m
Tue 10/277:35 am -
1 stop6h 03m
Deal found 10/8![Delta logo]()
$418
This Delta deal was found by Cheapflights users on 10/8. 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 10/231:18 pm -
2 stops9h 39m
Sun 10/257:35 am -
1 stop6h 03m
Deal found 10/8![Delta logo]()
$424
This Delta deal was found by Cheapflights users on 10/13. 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.
Fri 11/61:18 pm -
1 stop7h 47m
Sun 11/87:35 am -
1 stop6h 03m
Deal found 10/13![Delta logo]()
$428
This Delta deal was found by Cheapflights users on 10/10. 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 10/205:40 am -
1 stop5h 15m
Sat 10/244:00 pm -
1 stop7h 29m
Deal found 10/10![Delta logo]()
$453
Best flights from Great Falls to ChicagoDiscover carefully curated flight deals from Great Falls to Chicago that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 13, 2026.
Discover carefully curated flight deals from Great Falls to Chicago that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 13, 2026.
This Delta deal was found by Cheapflights users on 10/12. 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 1/91:10 pm -
1 stop7h 43m
Sun 1/175:15 pm -
1 stop6h 38m
Deal found 10/12![Delta logo]()
$348
This United Airlines deal was found by Cheapflights users on 10/8. 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 2/272:25 pm -
1 stop6h 04m
Sat 3/136:00 am -
1 stop8h 29m
Deal found 10/8![United Airlines logo]()
$348
This Delta deal was found by Cheapflights users on 10/11. 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 11/15:40 am -
1 stop5h 15m
Sat 11/74:00 pm -
1 stop7h 30m
Deal found 10/11![Delta logo]()
$348
This Delta deal was found by Cheapflights users on 10/12. 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 11/61:18 pm -
1 stop7h 47m
Sun 11/87:35 am -
1 stop6h 03m
Deal found 10/12![Delta logo]()
$418
This United Airlines deal was found by Cheapflights users on 10/12. 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 11/62:45 pm -
1 stop7h 01m
Sun 11/87:00 am -
1 stop7h 49m
Deal found 10/12![United Airlines logo]()
$466
This Delta deal was found by Cheapflights users on 10/8. 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 10/231:18 pm -
2 stops9h 39m
Sun 10/257:35 am -
1 stop6h 03m
Deal found 10/8![Delta logo]()
$424
This Delta deal was found by Cheapflights users on 10/8. 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 10/231:18 pm -
2 stops9h 39m
Tue 10/275:27 am -
2 stops13h 20m
Deal found 10/8![Delta logo]()
$429
This United Airlines deal was found by Cheapflights users on 10/9. 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 12/202:37 pm -
1 stop5h 52m
Thu 12/316:50 am -
1 stop7h 51m
Deal found 10/9![United Airlines logo]()
$528
This United Airlines deal was found by Cheapflights users on 10/12. 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 11/142:45 pm -
1 stop7h 01m
Wed 11/189:00 am -
2 stops13h 38m
Deal found 10/12![United Airlines logo]()
$567
Last-minute flights from Great Falls to ChicagoDiscover last-minute flight deals from Great Falls to Chicago. Data last updated October 13, 2026 and is based on user searches.
Discover last-minute flight deals from Great Falls to Chicago. Data last updated October 13, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 10/10. 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 10/205:40 am -
1 stop5h 15m
Sat 10/244:00 pm -
1 stop7h 29m
Deal found 10/10![Delta logo]()
$453
This Delta deal was found by Cheapflights users on 10/8. 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 10/231:18 pm -
1 stop7h 47m
Tue 10/277:35 am -
1 stop6h 03m
Deal found 10/8![Delta logo]()
$418
This Delta deal was found by Cheapflights users on 10/8. 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 10/231:18 pm -
2 stops9h 39m
Sun 10/257:35 am -
1 stop6h 03m
Deal found 10/8![Delta logo]()
$424
This Delta deal was found by Cheapflights users on 10/11. 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 11/15:40 am -
1 stop5h 15m
Sat 11/74:00 pm -
1 stop7h 30m
Deal found 10/11![Delta logo]()
$348
This United Airlines deal was found by Cheapflights users on 10/8. 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.
Thu 11/52:45 pm -
1 stop8h 14m
Thu 11/124:20 pm -
1 stop6h 18m
Deal found 10/8![United Airlines logo]()
$369
This Delta deal was found by Cheapflights users on 10/13. 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.
Fri 11/61:18 pm -
1 stop7h 47m
Sun 11/87:35 am -
1 stop6h 03m
Deal found 10/13![Delta logo]()
$428
This Gotogate deal was found by Cheapflights users on 10/8. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/135:10 pm -
1 stop11h 30m
Mon 11/166:35 pm -
1 stop22h 55m
Deal found 10/8![Alaska Airlines logo]()
$394
One-way flights from Great Falls to ChicagoSearch for one-way flight options from Great Falls to Chicago. Find affordable one-way fares based on user searches. Data last updated October 13, 2026.
Search for one-way flight options from Great Falls to Chicago. Find affordable one-way fares based on user searches. Data last updated October 13, 2026.
This United Airlines deal was found by Cheapflights users on 10/8. 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.
Thu 11/52:45 pm -
1 stop5h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![United Airlines logo]()
$333
This Kiwi.com deal was found by Cheapflights users on 10/8. 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 11/59:22 am -
3 stops42h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Multiple Airlines logo]()
$399
This Expedia deal was found by Cheapflights users on 10/8. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:10 pm -
2 stops24h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Alaska Airlines logo]()
$515
Find flight deals from Great Falls to Chicago
Discover tips and strategies to find the most affordable flight options for your journey from Great Falls (GTF) to Chicago (CHI). 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 October 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $348 (Delta) |
One-way from | $333 (United Airlines) |
Popular in | June |
Cheapest in | April |
Average price | $549 |
Good one-way deal | $484 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Great Falls to Chicago 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 7,457,451 searches. Data last updated October 13, 2026.
Use the filters below to find and compare flights from Great Falls to Chicago that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
Great FallsChicago
GTF Great Falls - ORD Chicago O'Hare Intl
GTFORD
Great Falls
Thu 11/5
2:45 pm-9:30 pm
1 stop5h 45m
Chicago O'Hare Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$333
Great FallsChicago
GTF Great Falls - ORD Chicago O'Hare Intl
GTFORD
Great Falls
Sat 1/9
1:10 pm-9:53 pm
1 stop7h 43m
Chicago O'Hare Intl
Sun 1/17
5:15 pm-10:53 pm
1 stop6h 38m
$348
Great FallsChicago
GTF Great Falls - ORD Chicago O'Hare Intl
GTFORD
Great Falls
Sat 2/27
2:25 pm-9:29 pm
1 stop6h 04m
Chicago O'Hare Intl
Sat 3/13
6:00 am-1:29 pm
1 stop8h 29m
$348
Great FallsChicago
GTF Great Falls - ORD Chicago O'Hare Intl
GTFORD
Great Falls
Sun 11/1
5:40 am-11:55 am
1 stop5h 15m
Chicago O'Hare Intl
Sat 11/7
4:00 pm-10:30 pm
1 stop7h 30m
$348
Great FallsChicago
GTF Great Falls - ORD Chicago O'Hare Intl
GTFORD
Great Falls
Thu 11/5
9:22 am-5:13 am
3 stops42h 51m
Chicago O'Hare Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$399
Great FallsChicago
GTF Great Falls - ORD Chicago O'Hare Intl
GTFORD
Great Falls
Fri 11/6
1:18 pm-10:05 pm
1 stop7h 47m
Chicago O'Hare Intl
Sun 11/8
7:35 am-12:38 pm
1 stop6h 03m
$418
Great FallsChicago
GTF Great Falls - ORD Chicago O'Hare Intl
GTFORD
Great Falls
Fri 10/23
1:18 pm-11:57 pm
2 stops9h 39m
Chicago O'Hare Intl
Sun 10/25
7:35 am-12:38 pm
1 stop6h 03m
$424
Great FallsChicago
GTF Great Falls - ORD Chicago O'Hare Intl
GTFORD
Great Falls
Fri 10/23
1:18 pm-11:57 pm
2 stops9h 39m
Chicago O'Hare Intl
Tue 10/27
5:27 am-5:47 pm
2 stops13h 20m
$429
Great FallsChicago
GTF Great Falls - ORD Chicago O'Hare Intl
GTFORD
Great Falls
Fri 11/6
2:45 pm-10:46 pm
1 stop7h 01m
Chicago O'Hare Intl
Sun 11/8
7:00 am-1:49 pm
1 stop7h 49m
$466
Great FallsChicago
GTF Great Falls - ORD Chicago O'Hare Intl
GTFORD
Great Falls
Sun 12/20
2:37 pm-9:29 pm
1 stop5h 52m
Chicago O'Hare Intl
Thu 12/31
6:50 am-1:41 pm
1 stop7h 51m
$528
Showing 1-10 of 11 resultsSorted by cheapest first
Compare providers for flights from Great Falls to Chicago
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 Great Falls to Chicago in October.
| 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 Great Falls-Chicago flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Great Falls-Chicago flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Great Falls-Chicago flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Great Falls-Chicago 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 Great Falls-Chicago 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 Great Falls to Chicago
Have a flexible travel schedule? Discover the best time to fly to Chicago from Great Falls with our price prediction graph.
GTF-CHI
GTF-ORD
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 Great Falls to Chicago
GTF-CHI
GTF-ORD
No data available for this route at this time. Please check back soon.
Reviews of airlines servicing Chicago
Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated October 13, 2026.
See what other customers who have flown with Delta and United Airlines from Great Falls to Chicago have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.2
Overall
7.8
Entertainment
7.8
Boarding
8.1
Comfort
7.8
Crew
8.5
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Food
7.2
Overall
7.8
Entertainment
7.8
Boarding
8.1
Comfort
7.8
Crew
8.5
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Food
7.2
Overall
7.8
Entertainment
7.8
Boarding
8.1
Comfort
7.8
Crew
8.5
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Related info for your journey
Find useful and relevant information for your journey from Great Falls to Chicago. 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 Chicago?
Book flights to Chicago if you plan to visit one of these locationsBenton Harbor
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Other flights to Chicago
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Great Falls and Chicago flights
Browse other Great Falls and Chicago flight options. Last updated on October 13, 2026.
Other flights from Great Falls
Browse through other flights departing from Great Falls. Flights are based on user searches made on Cheapflights and were last updated on October 13, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Great Falls to Chicago
Discover the top 2 airlines that operate flights from Great Falls to Chicago. 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 7,457,451 searches. Data last updated October 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$300 | Average$468 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$323 | Average$538 | FlexibilityNo cancel fee | On-timeN/A |