$145 Cheap Flights from Chicago (MDW) to Great Falls (GTF)

View $145 flight on Tue, Mar 17, 2026Opens in a new window

Popular airlines from Chicago Midway Airport (MDW) to Great Falls, MT (GTF-Great Falls Intl.)

Cheap Flights from Chicago to Great Falls (MDW-GTF)

Prices were available within the past 7 days and start at $145 for one-way flights and $298 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Nov 4 - Tue, Nov 11
MDW
Chicago
GTF
Great Falls
$298 Roundtrip, found 6 hours ago
$298
Roundtrip
found 6 hours ago
Select Delta flight, departing Tue, Nov 4 from Chicago to Great Falls, returning Tue, Nov 11, priced at $298 found 6 hours ago
Delta
Tue, Nov 4 - Mon, Nov 10
MDW
Chicago
GTF
Great Falls
$299 Roundtrip, found 6 hours ago
$299
Roundtrip
found 6 hours ago
Select Delta flight, departing Tue, Nov 4 from Chicago to Great Falls, returning Mon, Nov 10, priced at $299 found 6 hours ago
Delta
Fri, Oct 24 - Tue, Nov 11
MDW
Chicago
GTF
Great Falls
$358 Roundtrip, found 3 days ago
$358
Roundtrip
found 3 days ago
Select Delta flight, departing Fri, Oct 24 from Chicago to Great Falls, returning Tue, Nov 11, priced at $358 found 3 days ago
Delta
Tue, Nov 4 - Wed, Nov 12
MDW
Chicago
GTF
Great Falls
$369 Roundtrip, found 6 hours ago
$369
Roundtrip
found 6 hours ago
Select Delta flight, departing Tue, Nov 4 from Chicago to Great Falls, returning Wed, Nov 12, priced at $369 found 6 hours ago
Delta
Sat, Nov 8 - Tue, Nov 11
MDW
Chicago
GTF
Great Falls
$393 Roundtrip, found 6 hours ago
$393
Roundtrip
found 6 hours ago
Select Delta flight, departing Sat, Nov 8 from Chicago to Great Falls, returning Tue, Nov 11, priced at $393 found 6 hours ago
Delta
Sat, Nov 8 - Mon, Nov 10
MDW
Chicago
GTF
Great Falls
$394 Roundtrip, found 6 hours ago
$394
Roundtrip
found 6 hours ago
Select Delta flight, departing Sat, Nov 8 from Chicago to Great Falls, returning Mon, Nov 10, priced at $394 found 6 hours ago
Delta
Tue, Nov 4 - Sat, Nov 8
MDW
Chicago
GTF
Great Falls
$404 Roundtrip, found 6 hours ago
$404
Roundtrip
found 6 hours ago
Select Delta flight, departing Tue, Nov 4 from Chicago to Great Falls, returning Sat, Nov 8, priced at $404 found 6 hours ago
Delta
Wed, Dec 17 - Thu, Dec 18
MDW
Chicago
GTF
Great Falls
$410 Roundtrip, found 2 days ago
$410
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Dec 17 from Chicago to Great Falls, returning Thu, Dec 18, priced at $410 found 2 days ago
Delta
Fri, Dec 5 - Thu, Dec 18
MDW
Chicago
GTF
Great Falls
$422 Roundtrip, found 5 days ago
$422
Roundtrip
found 5 days ago
Select Delta flight, departing Fri, Dec 5 from Chicago to Great Falls, returning Thu, Dec 18, priced at $422 found 5 days ago
Delta
Sat, Nov 8 - Wed, Nov 12
MDW
Chicago
GTF
Great Falls
$464 Roundtrip, found 6 hours ago
$464
Roundtrip
found 6 hours ago
Select Delta flight, departing Sat, Nov 8 from Chicago to Great Falls, returning Wed, Nov 12, priced at $464 found 6 hours ago

Alternative airports near Great Falls

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Great Falls Intl. GTF. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $298
GTF
Great Falls Intl.
CheapestClosest
Average driving time to city center8 min
Flights from $298

Frequently asked questions

How much does a flight from Midway Intl. Airport (MDW) to Great Falls Intl. Airport (GTF) cost?
Grab a cheap one-way flight from $145 or cheap return flight from $298 from Midway Intl. Airport (MDW) to Great Falls Intl. Airport (GTF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Midway Intl. Airport (MDW) to Great Falls Intl. Airport (GTF)?
The cheapest month to fly from MDW to GTF is November, when there's less demand. Off-peak season is often when airlines offer better prices between these airports.
What is the cheapest airline that flies from Midway Intl. Airport (MDW) to Great Falls Intl. Airport (GTF)?
To find the cheapest airline flying from MDW to GTF, use Expedia's filter tool. Tailor your search based on what matters most to you, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Midway Intl. Airport (MDW) to Great Falls Intl. Airport (GTF)?
Nonstop flights from Midway Intl. Airport (MDW) to Great Falls Intl. Airport (GTF) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from MDW to GTF?
Usually you'll have the most choice when it comes to flights on a Friday. Tuesdays are often the quietest.* However, this can vary depending on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Midway Intl. Airport (MDW) to Great Falls Intl. Airport (GTF)?
To avoid possible delays on the Midway Intl. Airport (MDW) to Great Falls Intl. Airport (GTF) route, aim to travel before 3 PM. Departures after this hour have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Midway Intl. Airport (MDW) to Great Falls Intl. Airport (GTF) last-minute?
Last-minute fares from MDW to GTF are usually more expensive. For the lowest rates, start searching for flights as early as possible. That being said, if you're flexible with your travel dates, it's possible to find a cheap fare right before your trip.
Is it cheaper to book a MDW to GTF flight and hotel package?
Compared with arranging flights and hotels separately, booking a MDW to GTF flight and hotel package with Expedia could result in significant savings. Better still, having everything in one easy place will take the stress out of travel planning. Just pick your flights and choose from our wide range of hotels, then tailor your trip with other add-ons like activities and car rentals.
Can I cancel or change the date of my flight from Midway Intl. Airport (MDW) to Great Falls Intl. Airport (GTF)?
Usually, it's possible to reschedule or cancel your MDW to GTF flight. However, for bookings made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
Midway Intl.
Destination airport
Great Falls Intl.
Airlines serving
Delta
Roundtrip price
$297
Distance
1220 mi

Book with confidence

Chicago to Great Falls Flights

The cheapest times to fly from Chicago to Great Falls

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Chicago to Great Falls are during the month of November. You can find some of the cheapest flights from Chicago to Great Falls with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Chicago to Great Falls

Sunday is one of the best days to book for cheap flights from Chicago to Great Falls: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Chicago to Great Falls

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Chicago to Great Falls in 2025. You can also book with separate airlines for your outbound and return journeys, from $145 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Chicago to Great Falls flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Chicago to Great Falls airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Chicago to Great Falls Flights

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*Available to One Key members.