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

View $145 flight on Tue, Dec 9, 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at $145 for one-way flights and $275 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Nov 18 - Sat, Nov 22
GTF
Great Falls
MDW
Chicago
$275 Roundtrip, found 1 day ago
$275
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Nov 18 from Great Falls to Chicago, returning Sat, Nov 22, priced at $275 found 1 day ago
Delta
Mon, Nov 3 - Sat, Nov 22
GTF
Great Falls
MDW
Chicago
$285 Roundtrip, found 1 day ago
$285
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Nov 3 from Great Falls to Chicago, returning Sat, Nov 22, priced at $285 found 1 day ago
Delta
Thu, Jan 1 - Mon, Jan 19
GTF
Great Falls
MDW
Chicago
$287 Roundtrip, found 1 day ago
$287
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Jan 1 from Great Falls to Chicago, returning Mon, Jan 19, priced at $287 found 1 day ago
Delta
Wed, Nov 5 - Mon, Nov 10
GTF
Great Falls
MDW
Chicago
$322 Roundtrip, found 2 days ago
$322
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Nov 5 from Great Falls to Chicago, returning Mon, Nov 10, priced at $322 found 2 days ago
Delta
Tue, Nov 18 - Thu, Nov 27
GTF
Great Falls
MDW
Chicago
$325 Roundtrip, found 1 day ago
$325
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Nov 18 from Great Falls to Chicago, returning Thu, Nov 27, priced at $325 found 1 day ago
Delta
Sun, Nov 23 - Thu, Nov 27
GTF
Great Falls
MDW
Chicago
$335 Roundtrip, found 1 day ago
$335
Roundtrip
found 1 day ago
Select Delta flight, departing Sun, Nov 23 from Great Falls to Chicago, returning Thu, Nov 27, priced at $335 found 1 day ago
Delta
Mon, Nov 3 - Mon, Nov 10
GTF
Great Falls
MDW
Chicago
$357 Roundtrip, found 1 day ago
$357
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Nov 3 from Great Falls to Chicago, returning Mon, Nov 10, priced at $357 found 1 day ago
Delta
Tue, Nov 18 - Wed, Nov 26
GTF
Great Falls
MDW
Chicago
$382 Roundtrip, found 1 day ago
$382
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Nov 18 from Great Falls to Chicago, returning Wed, Nov 26, priced at $382 found 1 day ago
Delta
Sun, Nov 23 - Wed, Nov 26
GTF
Great Falls
MDW
Chicago
$392 Roundtrip, found 1 day ago
$392
Roundtrip
found 1 day ago
Select Delta flight, departing Sun, Nov 23 from Great Falls to Chicago, returning Wed, Nov 26, priced at $392 found 1 day ago
Delta
Wed, Nov 19 - Thu, Nov 27
GTF
Great Falls
MDW
Chicago
$407 Roundtrip, found 1 day ago
$407
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Nov 19 from Great Falls to Chicago, returning Thu, Nov 27, priced at $407 found 1 day ago

Alternative airports near Chicago

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

Select flight to O'Hare Intl. ORD. Cheapest option available. Average driving time to city center is 23 minutes. Flights from $455
ORD
O'Hare Intl.
Cheapest
Average driving time to city center23 min
Flights from $455

Frequently asked questions

How much does a flight from Great Falls Intl. Airport (GTF) to Midway Intl. Airport (MDW) cost?
Grab a cheap one-way flight from $145 or cheap return flight from $275 from Great Falls Intl. Airport (GTF) to Midway Intl. Airport (MDW) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Great Falls Intl. Airport (GTF) to Midway Intl. Airport (MDW)?
November is the most affordable month to fly from GTF to MDW. Timing your trip outside of the busy season is often the key to finding better fares.
What is the cheapest airline that flies from Great Falls Intl. Airport (GTF) to Midway Intl. Airport (MDW)?
Use the filter tool on Expedia to compare airlines and find the most affordable carrier that'll fly you from GTF to MDW. Then, sort your results by "Price (lowest to highest)" to snag a good deal.
How many flights per day from Great Falls Intl. Airport (GTF) to Midway Intl. Airport (MDW)?
There aren't any daily direct flights from Great Falls Intl. Airport (GTF) to Midway Intl. Airport (MDW). But you can book flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be on your way in no time at all.
What day of the week has the most flights from GTF to MDW?
Typically you'll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* But this can vary depending on the season, carrier 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 Great Falls Intl. Airport (GTF) to Midway Intl. Airport (MDW)?
Opt for a flight from Great Falls Intl. Airport (GTF) to Midway Intl. Airport (MDW) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures after this time are on average 22% more likely to be 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 Great Falls Intl. Airport (GTF) to Midway Intl. Airport (MDW) last-minute?
Holding off until right before your break to book a ticket from GTF to MDW often results in higher prices. While you may come across some last-minute discounts, there's no guarantee. Be flexible with your itinerary to boost your chances of getting a bargain.
Is it cheaper to book a GTF to MDW flight and hotel package?
Compared with arranging hotels and flights separately, booking a GTF to MDW flight and hotel package with Expedia could result in significant savings. Better still, having everything in one convenient place takes the hassle out of planning your trip. Simply secure your flights and choose from our extensive range of hotels, then tailor your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Great Falls Intl. Airport (GTF) to Midway Intl. Airport (MDW)?
Usually, it's possible to cancel or reschedule your GTF to MDW flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Travel information

Origin airport
Great Falls Intl.
Destination airport
Midway Intl.
Airlines serving
Delta
Roundtrip price
$274
Distance
1220 mi

Book with confidence

Book with confidence

Great Falls to Chicago Flights

The cheapest times to fly from Great Falls to Chicago

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 Great Falls to Chicago are during the month of November. You can find some of the cheapest flights from Great Falls to Chicago with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Great Falls to Chicago: 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 Great Falls to Chicago

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 Great Falls to Chicago 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 Great Falls to Chicago 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 Great Falls to Chicago 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.

 

Great Falls to Chicago Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.