$204+ 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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — GTF
Oct 31 — Nov 71
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 October 1, 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 1, 2026.
This Delta deal was found by Cheapflights users on 9/29. 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
Mon 10/261:18 pm -
1 stop7h 47m
Deal found 9/29![Delta logo]()
$348
This Alaska Airlines deal was found by Cheapflights users on 9/30. 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 11/147:00 am -
1 stop10h 30m
Sat 11/214:41 pm -
1 stop12h 15m
Deal found 9/30![Alaska Airlines logo]()
$378
This Delta deal was found by Cheapflights users on 9/26. 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 10/311:55 pm -
2 stops9h 34m
Wed 11/45:40 am -
1 stop5h 15m
Deal found 9/26![Delta logo]()
$414
This Delta deal was found by Cheapflights users on 9/28. 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 10/97:35 am -
1 stop6h 03m
Sun 10/111:18 pm -
1 stop7h 47m
Deal found 9/28![Delta logo]()
$453
This United Airlines deal was found by Cheapflights users on 9/29. 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 9/29![United Airlines logo]()
$458
This Delta deal was found by Cheapflights users on 9/29. 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 10/147:35 am -
1 stop6h 03m
Sun 10/185:40 am -
1 stop5h 15m
Deal found 9/29![Delta logo]()
$483
This United Airlines deal was found by Cheapflights users on 9/28. 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 10/93:50 pm -
1 stop6h 32m
Sun 10/116:15 am -
1 stop6h 00m
Deal found 9/28![United Airlines logo]()
$488
This United Airlines deal was found by Cheapflights users on 9/30. 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 10/217:00 am -
1 stop7h 41m
Fri 10/232:37 pm -
1 stop19h 50m
Deal found 9/30![United Airlines 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 October 1, 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 1, 2026.
This Delta deal was found by Cheapflights users on 9/29. 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
Mon 10/261:18 pm -
1 stop7h 47m
Deal found 9/29![Delta logo]()
$348
This United Airlines deal was found by Cheapflights users on 9/26. 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 10/316:59 am -
1 stop7h 50m
Wed 11/42:45 pm -
1 stop5h 45m
Deal found 9/26![United Airlines logo]()
$348
This Alaska Airlines deal was found by Cheapflights users on 9/26. 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 10/312:21 pm -
2 stops28h 09m
Wed 11/45:10 pm -
2 stops19h 07m
Deal found 9/26![Alaska Airlines logo]()
$669
This United Airlines deal was found by Cheapflights users on 9/26. 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 9/26![United Airlines logo]()
$458
This Delta deal was found by Cheapflights users on 9/28. 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 10/97:00 am -
2 stops11h 47m
Sun 10/111:18 pm -
1 stop7h 47m
Deal found 9/28![Delta logo]()
$604
This United Airlines deal was found by Cheapflights users on 9/26. 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 10/187:00 am -
1 stop7h 41m
Sat 10/242:37 pm -
1 stop8h 22m
Deal found 9/26![United Airlines logo]()
$643
This Alaska Airlines deal was found by Cheapflights users on 9/29. 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.
Wed 10/219:00 am -
1 stop8h 35m
Fri 10/235:15 pm -
1 stop24h 05m
Deal found 9/29![Alaska Airlines logo]()
$749
This United Airlines deal was found by Cheapflights users on 9/30. 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 12/252:47 pm -
1 stop7h 54m
Thu 12/312:37 pm -
1 stop5h 52m
Deal found 9/30![United Airlines logo]()
$659
This Alaska Airlines deal was found by Cheapflights users on 9/28. 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 12/259:01 am -
1 stop8h 31m
Wed 12/305:12 pm -
2 stops19h 07m
Deal found 9/28![Alaska Airlines logo]()
$752
This United Airlines deal was found by Cheapflights users on 9/30. 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 12/253:40 pm -
1 stop7h 01m
Tue 12/296:20 am -
1 stop14h 09m
Deal found 9/30![United Airlines logo]()
$750
Last-minute flights from Chicago to Great FallsDiscover last-minute flight deals from Chicago to Great Falls. Data last updated October 1, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Great Falls. Data last updated October 1, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/28. 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 10/97:35 am -
1 stop6h 03m
Sun 10/111:18 pm -
1 stop7h 47m
Deal found 9/28![Delta logo]()
$453
This United Airlines deal was found by Cheapflights users on 9/28. 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 10/93:50 pm -
1 stop6h 32m
Sun 10/116:15 am -
1 stop6h 00m
Deal found 9/28![United Airlines logo]()
$488
This Delta deal was found by Cheapflights users on 9/29. 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 10/147:35 am -
1 stop6h 03m
Sun 10/185:40 am -
1 stop5h 15m
Deal found 9/29![Delta logo]()
$483
This United Airlines deal was found by Cheapflights users on 9/30. 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 10/217:00 am -
1 stop7h 41m
Fri 10/232:37 pm -
2 stops16h 06m
Deal found 9/30![United Airlines logo]()
$537
This Delta deal was found by Cheapflights users on 9/29. 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
Mon 10/261:18 pm -
1 stop7h 47m
Deal found 9/29![Delta logo]()
$348
This Delta deal was found by Cheapflights users on 9/26. 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 10/311:55 pm -
2 stops9h 34m
Wed 11/45:40 am -
1 stop5h 15m
Deal found 9/26![Delta logo]()
$414
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 1, 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 1, 2026.
This Priceline deal was found by Cheapflights users on 9/30. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/189:30 am -
1 stop8h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Alaska Airlines logo]()
$204
This Priceline deal was found by Cheapflights users on 9/27. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/299:00 am -
1 stop8h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Alaska Airlines logo]()
$259
This Delta deal was found by Cheapflights users on 9/30. 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 11/182:44 pm -
2 stops8h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Delta logo]()
$339
This Delta deal was found by Cheapflights users on 9/30. 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 11/199:59 am -
2 stops8h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Delta logo]()
$359
This United Airlines deal was found by Cheapflights users on 9/27. 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 10/2910:25 am -
2 stops12h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![United Airlines logo]()
$370
This Kiwi.com deal was found by Cheapflights users on 9/30. 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 11/1812:25 am -
3 stops40h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Multiple Airlines logo]()
$534
This Kiwi.com deal was found by Cheapflights users on 9/30. 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 11/1812:53 pm -
3 stops52h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Multiple Airlines logo]()
$564
This Kiwi.com deal was found by Cheapflights users on 9/27. 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 10/282:53 am -
3 stops38h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Multiple Airlines logo]()
$769
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 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $348 (Delta) |
One-way from | $204 (Priceline) |
Popular in | January |
Cheapest in | December |
Average price | $479 |
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 1, 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
Wed 11/18
9:30 am-4:30 pm
1 stop8h 00m
Great Falls
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$204
ChicagoGreat Falls
ORD Chicago O'Hare Intl - GTF Great Falls
ORDGTF
Chicago O'Hare Intl
Thu 10/29
9:00 am-4:35 pm
1 stop8h 35m
Great Falls
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$259
ChicagoGreat Falls
ORD Chicago O'Hare Intl - GTF Great Falls
ORDGTF
Chicago O'Hare Intl
Wed 11/18
2:44 pm-10:30 pm
2 stops8h 46m
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 10/24
7:35 am-12:38 pm
1 stop6h 03m
Great Falls
Mon 10/26
1:18 pm-10:05 pm
1 stop7h 47m
$348
ChicagoGreat Falls
ORD Chicago O'Hare Intl - GTF Great Falls
ORDGTF
Chicago O'Hare Intl
Sat 10/31
6:59 am-1:49 pm
1 stop7h 50m
Great Falls
Wed 11/4
2:45 pm-9:30 pm
1 stop5h 45m
$348
ChicagoGreat Falls
ORD Chicago O'Hare Intl - GTF Great Falls
ORDGTF
Chicago O'Hare Intl
Thu 10/29
10:25 am-9:38 pm
2 stops12h 13m
Great Falls
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$370
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
Wed 11/18
12:25 am-4:01 pm
3 stops40h 36m
Great Falls
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$534
ChicagoGreat Falls
ORD Chicago O'Hare Intl - GTF Great Falls
ORDGTF
Chicago O'Hare Intl
Wed 11/18
12:53 pm-4:01 pm
3 stops52h 08m
Great Falls
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$564
ChicagoGreat Falls
ORD Chicago O'Hare Intl - GTF Great Falls
ORDGTF
Chicago O'Hare Intl
Fri 10/9
7:00 am-5:47 pm
2 stops11h 47m
Great Falls
Sun 10/11
1:18 pm-10:05 pm
1 stop7h 47m
$604
Showing 1-10 of 17 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 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
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.
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 1, 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.
Crew
8.5
Comfort
7.8
Overall
7.8
Food
7.2
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Crew
8.5
Comfort
7.8
Overall
7.8
Food
7.2
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Crew
8.5
Comfort
7.8
Overall
7.8
Food
7.2
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
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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Chicago and Great Falls flights
Browse other Chicago and Great Falls flight options. Last updated on October 1, 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 1, 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 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$318 | Average$413 | FlexibilityNo cancel fee | On-timeN/A |