$120 Cheap Flights from Great Falls (GTF) to Eugene (EUG)

View $120 flight on Sat, Oct 4, 2025Opens 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 $120 for one-way flights and $240 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue, Aug 26 - Wed, Sep 17
GTF
Great Falls
EUG
Eugene
$240 Roundtrip, found 2 days ago
$240
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, Aug 26 from Great Falls to Eugene, returning Wed, Sep 17, priced at $240 found 2 days ago
Hawaiian Airlines
Tue, Aug 19 - Sat, Sep 6
GTF
Great Falls
EUG
Eugene
$240 Roundtrip, found 2 days ago
$240
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Tue, Aug 19 from Great Falls to Eugene, returning Sat, Sep 6, priced at $240 found 2 days ago
Delta
Tue, Aug 26 - Sat, Sep 13
GTF
Great Falls
EUG
Eugene
$240 Roundtrip, found 2 days ago
$240
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Aug 26 from Great Falls to Eugene, returning Sat, Sep 13, priced at $240 found 2 days ago
Delta
Tue, Aug 26 - Tue, Sep 16
GTF
Great Falls
EUG
Eugene
$246 Roundtrip, found 2 days ago
$246
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Aug 26 from Great Falls to Eugene, returning Tue, Sep 16, priced at $246 found 2 days ago
Hawaiian Airlines
Sat, Aug 16 - Tue, Sep 2
GTF
Great Falls
EUG
Eugene
$251 Roundtrip, found 2 days ago
$251
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Sat, Aug 16 from Great Falls to Eugene, returning Tue, Sep 2, priced at $251 found 2 days ago
Hawaiian Airlines
Wed, Aug 27 - Wed, Sep 3
GTF
Great Falls
EUG
Eugene
$258 Roundtrip, found 20 hours ago
$258
Roundtrip
found 20 hours ago
Select Hawaiian Airlines flight, departing Wed, Aug 27 from Great Falls to Eugene, returning Wed, Sep 3, priced at $258 found 20 hours ago
Hawaiian Airlines
Tue, Aug 19 - Sat, Aug 30
GTF
Great Falls
EUG
Eugene
$259 Roundtrip, found 6 days ago
$259
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Tue, Aug 19 from Great Falls to Eugene, returning Sat, Aug 30, priced at $259 found 6 days ago
Hawaiian Airlines
Tue, Aug 26 - Fri, Sep 12
GTF
Great Falls
EUG
Eugene
$261 Roundtrip, found 2 days ago
$261
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Tue, Aug 26 from Great Falls to Eugene, returning Fri, Sep 12, priced at $261 found 2 days ago
Hawaiian Airlines
Sat, Aug 30 - Sat, Sep 13
GTF
Great Falls
EUG
Eugene
$262 Roundtrip, found 2 days ago
$262
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Sat, Aug 30 from Great Falls to Eugene, returning Sat, Sep 13, priced at $262 found 2 days ago
United
Sat, Aug 30 - Sun, Aug 31
GTF
Great Falls
EUG
Eugene
$304 Roundtrip, found 20 hours ago
$304
Roundtrip
found 20 hours ago
Select United flight, departing Sat, Aug 30 from Great Falls to Eugene, returning Sun, Aug 31, priced at $304 found 20 hours ago

Alternative airports near Eugene

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

Select flight to Mahlon Sweet Field EUG. Cheapest and Closest option available. Average driving time to city center is 14 minutes. Flights from $406
EUG
Mahlon Sweet Field
CheapestClosest
Average driving time to city center14 min
Flights from $406
Flights from Great Falls (GTF) to Eugene (EUG)
Origin airport
Great Falls Intl.
Destination airport
Eugene
Airlines serving
Alaska Airlines, Delta, United
Roundtrip price
$240
Distance
615 mi

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 August. 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 2025. You can also book with separate airlines for your outbound and return journeys, from $120 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.

 

Frequently asked questions

How much does a flight from Great Falls Intl. Airport (GTF) to Mahlon Sweet Field Airport (EUG) cost?
Discover the latest flight deals from GTF to EUG by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from GTF to EUG?
The cheapest flights from GTF to EUG are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from GTF to EUG?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from GTF to EUG. Sort your results by "Price (lowest to highest)" to snap up a great deal.
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.

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*Available to One Key members.