$333+ 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 12/15. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — GTF
Nov 12 — Nov 191
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
Cheapest
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 October 13, 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 October 13, 2026.
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/128:45 am -
1 stop6h 04m
Tue 12/152:47 pm -
1 stop8h 12m
Deal found 10/11![United Airlines 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.
Thu 11/125:30 am -
2 stops13h 09m
Sat 11/141:21 pm -
1 stop7h 26m
Deal found 10/12![Delta logo]()
$354
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.
Sat 10/248:40 am -
1 stop6h 01m
Wed 10/282:45 pm -
1 stop7h 01m
Deal found 10/9![United Airlines logo]()
$418
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/245:27 am -
2 stops13h 20m
Wed 10/285:40 am -
1 stop5h 15m
Deal found 10/9![Delta logo]()
$424
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 11/78:40 am -
1 stop6h 09m
Wed 11/112:45 pm -
1 stop8h 14m
Deal found 10/8![United Airlines logo]()
$458
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:00 am -
1 stop7h 41m
Mon 10/262:45 pm -
1 stop7h 01m
Deal found 10/10![United Airlines logo]()
$498
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 October 13, 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 October 13, 2026.
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/128:45 am -
1 stop6h 04m
Tue 12/152:47 pm -
1 stop8h 12m
Deal found 10/11![United Airlines 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.
Sat 12/127:05 am -
1 stop6h 34m
Tue 12/155:35 am -
1 stop5h 28m
Deal found 10/12![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.
Thu 11/125:30 am -
2 stops13h 09m
Sat 11/141:21 pm -
1 stop7h 26m
Deal found 10/12![Delta logo]()
$354
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.
Sat 11/78:40 am -
1 stop6h 09m
Wed 11/112:45 pm -
1 stop8h 14m
Deal found 10/9![United Airlines logo]()
$458
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.
Sat 10/247:35 am -
1 stop6h 03m
Wed 10/281:18 pm -
1 stop7h 47m
Deal found 10/10![Delta logo]()
$418
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:00 am -
1 stop7h 41m
Mon 10/262:45 pm -
1 stop7h 01m
Deal found 10/10![United Airlines logo]()
$498
Last-minute flights from Chicago to Great FallsDiscover last-minute flight deals from Chicago to Great Falls. Data last updated October 13, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Great Falls. Data last updated October 13, 2026 and is based on user searches.
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:00 am -
1 stop7h 41m
Mon 10/262:45 pm -
1 stop7h 01m
Deal found 10/10![United Airlines logo]()
$498
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.
Sat 10/248:40 am -
1 stop6h 01m
Wed 10/282:45 pm -
1 stop7h 01m
Deal found 10/9![United Airlines logo]()
$418
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/245:27 am -
2 stops13h 20m
Wed 10/285:40 am -
1 stop5h 15m
Deal found 10/9![Delta logo]()
$424
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 11/78:40 am -
1 stop6h 09m
Wed 11/112:45 pm -
1 stop8h 14m
Deal found 10/12![United Airlines logo]()
$458
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.
Thu 11/128:40 am -
1 stop6h 09m
Sat 11/142:45 pm -
1 stop7h 01m
Deal found 10/12![United Airlines 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.
Thu 11/125:30 am -
2 stops13h 09m
Sat 11/141:21 pm -
1 stop7h 26m
Deal found 10/12![Delta logo]()
$354
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 October 13, 2026.
Search for one-way flight options from Chicago to Great Falls. 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 10/12. 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.
Tue 12/152:35 pm -
1 stop7h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![United Airlines logo]()
$333
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.
Tue 12/153:47 pm -
2 stops7h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Delta logo]()
$339
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/155:35 am -
3 stops52h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Multiple Airlines logo]()
$583
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 October 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $348 (United Airlines) |
One-way from | $333 (United Airlines) |
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 7,457,451 searches. Data last updated October 13, 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 Chicago O'Hare Intl - GTF Great Falls
ORDGTF
Chicago O'Hare Intl
Tue 12/15
2:35 pm-9:13 pm
1 stop7h 38m
Great Falls
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$333
ChicagoGreat Falls
ORD Chicago O'Hare Intl - GTF Great Falls
ORDGTF
Chicago O'Hare Intl
Tue 12/15
3:47 pm-10:29 pm
2 stops7h 42m
Great Falls
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$339
ChicagoGreat Falls
ORD Chicago O'Hare Intl - GTF Great Falls
ORDGTF
Chicago O'Hare Intl
Sat 12/12
8:45 am-1:49 pm
1 stop6h 04m
Great Falls
Tue 12/15
2:47 pm-11:59 pm
1 stop8h 12m
$348
ChicagoGreat Falls
ORD Chicago O'Hare Intl - GTF Great Falls
ORDGTF
Chicago O'Hare Intl
Sat 12/12
7:05 am-12:39 pm
1 stop6h 34m
Great Falls
Tue 12/15
5:35 am-12:03 pm
1 stop5h 28m
$348
ChicagoGreat Falls
ORD Chicago O'Hare Intl - GTF Great Falls
ORDGTF
Chicago O'Hare Intl
Thu 11/12
5:30 am-5:39 pm
2 stops13h 09m
Great Falls
Sat 11/14
1:21 pm-9:47 pm
1 stop7h 26m
$354
ChicagoGreat Falls
ORD Chicago O'Hare Intl - GTF Great Falls
ORDGTF
Chicago O'Hare Intl
Sat 10/24
7:35 am-12:38 pm
1 stop6h 03m
Great Falls
Wed 10/28
1:18 pm-10:05 pm
1 stop7h 47m
$418
ChicagoGreat Falls
ORD Chicago O'Hare Intl - GTF Great Falls
ORDGTF
Chicago O'Hare Intl
Sat 11/7
8:40 am-1:49 pm
1 stop6h 09m
Great Falls
Wed 11/11
2:45 pm-11:59 pm
1 stop8h 14m
$458
ChicagoGreat Falls
ORD Chicago O'Hare Intl - GTF Great Falls
ORDGTF
Chicago O'Hare Intl
Fri 10/23
7:00 am-1:41 pm
1 stop7h 41m
Great Falls
Mon 10/26
2:45 pm-10:46 pm
1 stop7h 01m
$498
ChicagoGreat Falls
ORD Chicago O'Hare Intl - GTF Great Falls
ORDGTF
Chicago O'Hare Intl
Tue 12/15
5:35 am-8:50 am
3 stops52h 15m
Great Falls
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$583
Sorted 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 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 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
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
No data available for this route at this time. Please check back soon.
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 October 13, 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.
Food
7.2
Crew
8.5
Boarding
8.1
Overall
7.8
Comfort
7.8
Entertainment
7.8
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Food
7.2
Crew
8.5
Boarding
8.1
Overall
7.8
Comfort
7.8
Entertainment
7.8
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Food
7.2
Crew
8.5
Boarding
8.1
Overall
7.8
Comfort
7.8
Entertainment
7.8
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
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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Complete your trip
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Other flights to Great Falls
Explore flights to Great Falls departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 13, 2026.
Chicago and Great Falls flights
Browse other Chicago and Great Falls flight options. Last updated on October 13, 2026.
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Browse through other flights departing from Chicago. Flights are based on user searches made on Cheapflights and were last updated on October 13, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Chicago to Great Falls
Discover the top airline 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 7,457,451 searches. Data last updated October 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$318 | Average$413 | FlexibilityNo cancel fee | On-timeN/A |