$136 Cheap Flights from Eugene (EUG) to Helena (HLN)

View $136 flight on Tue, Oct 28, 2025Opens in a new window

Popular airlines from Mahlon Sweet Field Airport (EUG) to Helena, MT (HLN-Helena Regional)

Cheap Flights from Eugene to Helena (EUG-HLN)

Prices were available within the past 7 days and start at $136 for one-way flights and $201 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Sat, Oct 18 - Tue, Oct 28
EUG
Eugene
HLN
Helena
$201 Roundtrip, found 15 hours ago
$201
Roundtrip
found 15 hours ago
Select Hawaiian Airlines flight, departing Sat, Oct 18 from Eugene to Helena, returning Tue, Oct 28, priced at $201 found 15 hours ago
Hawaiian Airlines
Fri, Oct 17 - Tue, Oct 28
EUG
Eugene
HLN
Helena
$226 Roundtrip, found 15 hours ago
$226
Roundtrip
found 15 hours ago
Select Hawaiian Airlines flight, departing Fri, Oct 17 from Eugene to Helena, returning Tue, Oct 28, priced at $226 found 15 hours ago
Alaska Airlines
Tue, Oct 28 - Tue, Nov 4
EUG
Eugene
HLN
Helena
$236 Roundtrip, found 18 hours ago
$236
Roundtrip
found 18 hours ago
Select Alaska Airlines flight, departing Tue, Oct 28 from Eugene to Helena, returning Tue, Nov 4, priced at $236 found 18 hours ago
Delta
Tue, Oct 28 - Tue, Nov 4
EUG
Eugene
HLN
Helena
$241 Roundtrip, found 18 hours ago
$241
Roundtrip
found 18 hours ago
Select Delta flight, departing Tue, Oct 28 from Eugene to Helena, returning Tue, Nov 4, priced at $241 found 18 hours ago
Hawaiian Airlines
Sat, Oct 18 - Sun, Oct 26
EUG
Eugene
HLN
Helena
$251 Roundtrip, found 15 hours ago
$251
Roundtrip
found 15 hours ago
Select Hawaiian Airlines flight, departing Sat, Oct 18 from Eugene to Helena, returning Sun, Oct 26, priced at $251 found 15 hours ago
Delta
Tue, Oct 28 - Tue, Nov 4
EUG
Eugene
HLN
Helena
$256 Roundtrip, found 18 hours ago
$256
Roundtrip
found 18 hours ago
Select Delta flight, departing Tue, Oct 28 from Eugene to Helena, returning Tue, Nov 4, priced at $256 found 18 hours ago
Alaska Airlines
Sat, Oct 18 - Sat, Oct 25
EUG
Eugene
HLN
Helena
$262 Roundtrip, found 16 hours ago
$262
Roundtrip
found 16 hours ago
Select Alaska Airlines flight, departing Sat, Oct 18 from Eugene to Helena, returning Sat, Oct 25, priced at $262 found 16 hours ago
Hawaiian Airlines
Wed, Oct 29 - Sat, Nov 15
EUG
Eugene
HLN
Helena
$262 Roundtrip, found 8 hours ago
$262
Roundtrip
found 8 hours ago
Select Hawaiian Airlines flight, departing Wed, Oct 29 from Eugene to Helena, returning Sat, Nov 15, priced at $262 found 8 hours ago
United
Tue, Oct 28 - Tue, Nov 4
EUG
Eugene
HLN
Helena
$265 Roundtrip, found 18 hours ago
$265
Roundtrip
found 18 hours ago
Select United flight, departing Tue, Oct 28 from Eugene to Helena, returning Tue, Nov 4, priced at $265 found 18 hours ago
Delta
Tue, Oct 21 - Tue, Oct 28
EUG
Eugene
HLN
Helena
$267 Roundtrip, found 18 hours ago
$267
Roundtrip
found 18 hours ago
Select Delta flight, departing Tue, Oct 21 from Eugene to Helena, returning Tue, Oct 28, priced at $267 found 18 hours ago

Alternative airports near Helena

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

Select flight to Helena Regional HLN. Cheapest and Closest option available. Average driving time to city center is 7 minutes. Flights from $419
HLN
Helena Regional
CheapestClosest
Average driving time to city center7 min
Flights from $419

Frequently asked questions

How much does a flight from Mahlon Sweet Field Airport (EUG) to Helena Regional Airport (HLN) cost?
Secure a cheap one-way flight from $136 or cheap return flight from $201 from Mahlon Sweet Field Airport (EUG) to Helena Regional Airport (HLN) 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 Mahlon Sweet Field Airport (EUG) to Helena Regional Airport (HLN)?
October is the cheapest month to fly from EUG to HLN. Traveling during quieter months is often the key to better flight prices.
What is the cheapest airline that flies from Mahlon Sweet Field Airport (EUG) to Helena Regional Airport (HLN)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest EUG to HLN flight.
How many flights per day from Mahlon Sweet Field Airport (EUG) to Helena Regional Airport (HLN)?
You'll have to take a flight with a layover when traveling from Mahlon Sweet Field Airport (EUG) to Helena Regional Airport (HLN). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from EUG to HLN?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can vary depending on a range 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 Mahlon Sweet Field Airport (EUG) to Helena Regional Airport (HLN)?
To avoid possible delays on the Mahlon Sweet Field Airport (EUG) to Helena Regional Airport (HLN) route, travel before 3 PM. Later flights have a 22% higher chance of cancellation.**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 Mahlon Sweet Field Airport (EUG) to Helena Regional Airport (HLN) last-minute?
Booking your ticket from EUG to HLN right before your getaway is typically more expensive. However, if there's some wiggle room with your departure dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book an EUG to HLN flight and hotel package?
You'll generally save money by securing an EUG to HLN flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. After choosing your preferred accommodations and flights, consider other add-ons like activities, car rentals and tours.
Can I cancel or change the date of my flight from Mahlon Sweet Field Airport (EUG) to Helena Regional Airport (HLN)?
Usually, it's possible to cancel or reschedule your EUG to HLN 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 allowed and if any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Travel information

Origin airport
Eugene
Destination airport
Helena Regional
Airlines serving
Alaska Airlines
Roundtrip price
$200
Distance
570 mi

Book with confidence

Book with confidence

Eugene to Helena Flights

The cheapest times to fly from Eugene to Helena

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

 

The best time to book a flight from Eugene to Helena

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

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 Eugene to Helena in 2025. You can also book with separate airlines for your outbound and return journeys, from $136 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 Eugene to Helena 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 Eugene to Helena 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.

 

Eugene to Helena Flights

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*Available to One Key members.