$209 Cheap Flights from Idaho Falls (IDA) to Helena (HLN)

View $209 flight on Thu, Nov 27, 2025Opens in a new window

Popular airlines from Idaho Falls Regional Airport (IDA) to Helena, MT (HLN-Helena Regional)

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Cheap Flights from Idaho Falls to Helena (IDA-HLN)

Prices were available within the past 7 days and start at $209 for one-way flights and $303 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Sat, Dec 6 - Wed, Dec 24
IDA
Idaho Falls
HLN
Helena
$303 Roundtrip, found 4 days ago
$303
Roundtrip
found 4 days ago
Select Hawaiian Airlines flight, departing Sat, Dec 6 from Idaho Falls to Helena, returning Wed, Dec 24, priced at $303 found 4 days ago
Hawaiian Airlines
Tue, Nov 18 - Wed, Dec 3
IDA
Idaho Falls
HLN
Helena
$313 Roundtrip, found 4 days ago
$313
Roundtrip
found 4 days ago
Select Hawaiian Airlines flight, departing Tue, Nov 18 from Idaho Falls to Helena, returning Wed, Dec 3, priced at $313 found 4 days ago
Hawaiian Airlines
Tue, Nov 18 - Fri, Dec 5
IDA
Idaho Falls
HLN
Helena
$332 Roundtrip, found 4 days ago
$332
Roundtrip
found 4 days ago
Select Hawaiian Airlines flight, departing Tue, Nov 18 from Idaho Falls to Helena, returning Fri, Dec 5, priced at $332 found 4 days ago
Hawaiian Airlines
Tue, Nov 18 - Thu, Dec 4
IDA
Idaho Falls
HLN
Helena
$342 Roundtrip, found 4 days ago
$342
Roundtrip
found 4 days ago
Select Hawaiian Airlines flight, departing Tue, Nov 18 from Idaho Falls to Helena, returning Thu, Dec 4, priced at $342 found 4 days ago
Hawaiian Airlines
Fri, Jan 2 - Fri, Jan 16
IDA
Idaho Falls
HLN
Helena
$352 Roundtrip, found 4 days ago
$352
Roundtrip
found 4 days ago
Select Hawaiian Airlines flight, departing Fri, Jan 2 from Idaho Falls to Helena, returning Fri, Jan 16, priced at $352 found 4 days ago
Hawaiian Airlines
Wed, Dec 31 - Tue, Jan 13
IDA
Idaho Falls
HLN
Helena
$353 Roundtrip, found 4 days ago
$353
Roundtrip
found 4 days ago
Select Hawaiian Airlines flight, departing Wed, Dec 31 from Idaho Falls to Helena, returning Tue, Jan 13, priced at $353 found 4 days ago
Delta
Thu, Dec 4 - Sun, Dec 14
IDA
Idaho Falls
HLN
Helena
$357 Roundtrip, found 4 days ago
$357
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Dec 4 from Idaho Falls to Helena, returning Sun, Dec 14, priced at $357 found 4 days ago
Hawaiian Airlines
Wed, Dec 10 - Thu, Dec 25
IDA
Idaho Falls
HLN
Helena
$362 Roundtrip, found 4 days ago
$362
Roundtrip
found 4 days ago
Select Hawaiian Airlines flight, departing Wed, Dec 10 from Idaho Falls to Helena, returning Thu, Dec 25, priced at $362 found 4 days ago
United
Wed, Nov 26 - Tue, Dec 9
IDA
Idaho Falls
HLN
Helena
$368 Roundtrip, found 5 days ago
$368
Roundtrip
found 5 days ago
Select United flight, departing Wed, Nov 26 from Idaho Falls to Helena, returning Tue, Dec 9, priced at $368 found 5 days ago
Delta
Wed, Nov 26 - Sat, Dec 6
IDA
Idaho Falls
HLN
Helena
$373 Roundtrip, found 5 days ago
$373
Roundtrip
found 5 days ago
Select Delta flight, departing Wed, Nov 26 from Idaho Falls to Helena, returning Sat, Dec 6, priced at $373 found 5 days 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 $500
HLN
Helena Regional
CheapestClosest
Average driving time to city center7 min
Flights from $500

Frequently asked questions

How much does a flight from Idaho Falls Regional Airport (IDA) to Helena Regional Airport (HLN) cost?
Get a cheap one-way flight from $209 or cheap return flight from $303 from Idaho Falls Regional Airport (IDA) 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 Idaho Falls Regional Airport (IDA) to Helena Regional Airport (HLN)?
Traveling in December is a good way to save, as it's the cheapest month for flights between IDA and HLN. You'll usually find the lowest prices during the off-season.
What is the cheapest airline that flies from Idaho Falls Regional Airport (IDA) to Helena Regional Airport (HLN)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll fly you from IDA to HLN. Then, sort your results by "Price (lowest to highest)" to pick up a good deal.
How many flights per day from Idaho Falls Regional Airport (IDA) to Helena Regional Airport (HLN)?
There are no daily nonstop flights departing from Idaho Falls Regional Airport (IDA) to Helena Regional Airport (HLN). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from IDA to HLN?
Generally you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can vary depending on the airline, season 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 Idaho Falls Regional Airport (IDA) to Helena Regional Airport (HLN)?
Select a flight from Idaho Falls Regional Airport (IDA) to Helena Regional Airport (HLN) that takes off before 3 PM to reduce the likelihood of delays. Departures after this hour 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 Idaho Falls Regional Airport (IDA) to Helena Regional Airport (HLN) last-minute?
Waiting until just before your trip to book a flight from IDA to HLN generally means paying more. While you might find some last-minute offers, they're not always guaranteed. Be flexible with your itinerary to boost your chances of landing a bargain.
Is it cheaper to book an IDA to HLN flight and hotel package?
Opting for an IDA to HLN flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Pick from our impressive range of hotels and then add activities, flights and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Idaho Falls Regional Airport (IDA) to Helena Regional Airport (HLN)?
If you reserved your IDA to HLN flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for further details.

Travel information

Origin airport
Idaho Falls Regional
Destination airport
Helena Regional
Roundtrip price
$302
Distance
213 mi

Book with confidence

Idaho Falls to Helena Flights

The cheapest times to fly from Idaho Falls 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 Idaho Falls to Helena are during the month of December. You can find some of the cheapest flights from Idaho Falls to Helena with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Idaho Falls to Helena

Sunday is one of the best days to book for cheap flights from Idaho Falls 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 Idaho Falls 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 Idaho Falls to Helena in 2025. You can also book with separate airlines for your outbound and return journeys, from $209 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 Idaho Falls 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 Idaho Falls 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.

 

Idaho Falls to Helena Flights

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*Available to One Key members.