$113 Cheap Flights from Great Falls (GTF) to Eugene (EUG)

View $113 flight on Wed, May 13, 2026Opens in a new window

Popular airlines from Great Falls, MT (GTF-Great Falls Intl.) to Mahlon Sweet Field Airport (EUG)

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Cheap Flights from Great Falls to Eugene (GTF-EUG)

Prices were available within the past 7 days and start at $113 for one-way flights and $226 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, May 6 - Sat, May 9
GTF
Great Falls
EUG
Eugene
$226 Roundtrip, found 6 days ago
$226
Roundtrip
found 6 days ago
Select United flight, departing Wed, May 6 from Great Falls to Eugene, returning Sat, May 9, priced at $226 found 6 days ago
Alaska Airlines
Sat, Apr 11 - Sat, Apr 18
GTF
Great Falls
EUG
Eugene
$233 Roundtrip, found 4 days ago
$233
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, Apr 11 from Great Falls to Eugene, returning Sat, Apr 18, priced at $233 found 4 days ago
Alaska Airlines
Wed, May 13 - Tue, May 19
GTF
Great Falls
EUG
Eugene
$248 Roundtrip, found 1 hour ago
$248
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Wed, May 13 from Great Falls to Eugene, returning Tue, May 19, priced at $248 found 1 hour ago
Alaska Airlines
Thu, Apr 9 - Sun, Apr 12
GTF
Great Falls
EUG
Eugene
$253 Roundtrip, found 4 days ago
$253
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Thu, Apr 9 from Great Falls to Eugene, returning Sun, Apr 12, priced at $253 found 4 days ago
Alaska Airlines
Fri, Apr 17 - Sun, Apr 19
GTF
Great Falls
EUG
Eugene
$254 Roundtrip, found 2 days ago
$254
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Fri, Apr 17 from Great Falls to Eugene, returning Sun, Apr 19, priced at $254 found 2 days ago
Delta
Tue, May 12 - Tue, May 19
GTF
Great Falls
EUG
Eugene
$258 Roundtrip, found 1 hour ago
$258
Roundtrip
found 1 hour ago
Select Delta flight, departing Tue, May 12 from Great Falls to Eugene, returning Tue, May 19, priced at $258 found 1 hour ago
Alaska Airlines
Sat, Apr 4 - Sat, Apr 11
GTF
Great Falls
EUG
Eugene
$259 Roundtrip, found 12 hours ago
$259
Roundtrip
found 12 hours ago
Select Alaska Airlines flight, departing Sat, Apr 4 from Great Falls to Eugene, returning Sat, Apr 11, priced at $259 found 12 hours ago
United
Wed, May 6 - Sat, May 9
GTF
Great Falls
EUG
Eugene
$267 Roundtrip, found 6 days ago
$267
Roundtrip
found 6 days ago
Select United flight, departing Wed, May 6 from Great Falls to Eugene, returning Sat, May 9, priced at $267 found 6 days ago
Alaska Airlines
Thu, May 14 - Tue, May 19
GTF
Great Falls
EUG
Eugene
$270 Roundtrip, found 21 hours ago
$270
Roundtrip
found 21 hours ago
Select Alaska Airlines flight, departing Thu, May 14 from Great Falls to Eugene, returning Tue, May 19, priced at $270 found 21 hours ago
Alaska Airlines
Tue, Mar 31 - Tue, Apr 21
GTF
Great Falls
EUG
Eugene
$272 Roundtrip, found 5 days ago
$272
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Tue, Mar 31 from Great Falls to Eugene, returning Tue, Apr 21, priced at $272 found 5 days ago

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Frequently asked questions

How much does a flight from Great Falls Intl. Airport (GTF) to Mahlon Sweet Field Airport (EUG) cost?
Snag a cheap one-way flight from $113 or cheap return flight from $226 from Great Falls Intl. Airport (GTF) to Mahlon Sweet Field Airport (EUG) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Great Falls Intl. Airport (GTF) to Mahlon Sweet Field Airport (EUG)?
Traveling in May is a great way to save, as it's the cheapest month for flights between GTF and EUG. You'll typically find the lowest fares during the off-season.
What is the cheapest airline that flies from Great Falls Intl. Airport (GTF) to Mahlon Sweet Field Airport (EUG)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest GTF to EUG flight.
How many flights per day from Great Falls Intl. Airport (GTF) to Mahlon Sweet Field Airport (EUG)?
You'll need to hop on a flight with a layover if you're traveling from Great Falls Intl. Airport (GTF) to Mahlon Sweet Field Airport (EUG). Direct flights don't operate daily on this route. However, simply filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from GTF to EUG?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can vary based on a number of factors, including the airline and season.*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 Mahlon Sweet Field Airport (EUG)?
To arrive at Mahlon Sweet Field Airport (EUG) on schedule, select a flight that takes off from Great Falls Intl. Airport (GTF) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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 Mahlon Sweet Field Airport (EUG) last-minute?
Holding off until just before your trip to book a flight from GTF to EUG generally means paying more. Although you may find some last-minute deals, there's no guarantee. Allow some flexibility in your schedule to maximize your chances of getting a bargain.
Is it cheaper to book a GTF to EUG flight and hotel package?
Compared with arranging flights and hotels separately, booking a GTF to EUG flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one place will take the hassle out of planning your trip. Simply secure your flights and choose from our wide range of stays, then customize your trip with other add-ons like activities and car rentals.
Can I cancel or change the date of my flight from Great Falls Intl. Airport (GTF) to Mahlon Sweet Field Airport (EUG)?
If you booked your GTF to EUG flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more information.

Travel information

Origin airport
Great Falls Intl.
Destination airport
Eugene
Airlines serving
Alaska Airlines, Delta, United
Roundtrip price
$226
Distance
615 mi

Book with confidence

Great Falls to Eugene Flights

The cheapest times to fly from Great Falls to Eugene

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

 

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

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

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 Eugene in 2026. You can also book with separate airlines for your outbound and return journeys, from $113 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 Eugene 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 Eugene 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 Eugene Flights

*Flight schedules are subject to change.

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