Popular airlines from Sioux Falls Regional Airport (FSD) to Helena, MT (HLN-Helena Regional)

Cheap Flights from Sioux Falls to Helena (FSD-HLN)

Prices were available within the past 7 days and start at $239 for one-way flights and $259 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Jan 13 - Tue, Jan 27
FSD
Sioux Falls
HLN
Helena
$259 Roundtrip, found 1 day ago
$259
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Jan 13 from Sioux Falls to Helena, returning Tue, Jan 27, priced at $259 found 1 day ago
Delta
Sat, Nov 15 - Thu, Dec 4
FSD
Sioux Falls
HLN
Helena
$304 Roundtrip, found 1 day ago
$304
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Nov 15 from Sioux Falls to Helena, returning Thu, Dec 4, priced at $304 found 1 day ago
United
Sat, Dec 6 - Thu, Dec 25
FSD
Sioux Falls
HLN
Helena
$319 Roundtrip, found 1 day ago
$319
Roundtrip
found 1 day ago
Select United flight, departing Sat, Dec 6 from Sioux Falls to Helena, returning Thu, Dec 25, priced at $319 found 1 day ago
Delta
Fri, Dec 5 - Mon, Dec 15
FSD
Sioux Falls
HLN
Helena
$334 Roundtrip, found 1 day ago
$334
Roundtrip
found 1 day ago
Select Delta flight, departing Fri, Dec 5 from Sioux Falls to Helena, returning Mon, Dec 15, priced at $334 found 1 day ago
Delta
Sun, Nov 16 - Thu, Dec 4
FSD
Sioux Falls
HLN
Helena
$354 Roundtrip, found 1 day ago
$354
Roundtrip
found 1 day ago
Select Delta flight, departing Sun, Nov 16 from Sioux Falls to Helena, returning Thu, Dec 4, priced at $354 found 1 day ago
United
Sun, Nov 23 - Sun, Dec 7
FSD
Sioux Falls
HLN
Helena
$364 Roundtrip, found 1 day ago
$364
Roundtrip
found 1 day ago
Select United flight, departing Sun, Nov 23 from Sioux Falls to Helena, returning Sun, Dec 7, priced at $364 found 1 day ago
Delta
Thu, Nov 13 - Mon, Nov 17
FSD
Sioux Falls
HLN
Helena
$364 Roundtrip, found 15 hours ago
$364
Roundtrip
found 15 hours ago
Select Delta flight, departing Thu, Nov 13 from Sioux Falls to Helena, returning Mon, Nov 17, priced at $364 found 15 hours ago
United
Tue, Nov 11 - Sat, Nov 15
FSD
Sioux Falls
HLN
Helena
$369 Roundtrip, found 15 hours ago
$369
Roundtrip
found 15 hours ago
Select United flight, departing Tue, Nov 11 from Sioux Falls to Helena, returning Sat, Nov 15, priced at $369 found 15 hours ago
Delta
Sat, Dec 6 - Wed, Dec 24
FSD
Sioux Falls
HLN
Helena
$373 Roundtrip, found 1 day ago
$373
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Dec 6 from Sioux Falls to Helena, returning Wed, Dec 24, priced at $373 found 1 day ago
Delta
Sat, Dec 6 - Sun, Dec 21
FSD
Sioux Falls
HLN
Helena
$378 Roundtrip, found 1 day ago
$378
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Dec 6 from Sioux Falls to Helena, returning Sun, Dec 21, priced at $378 found 1 day 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 $414
HLN
Helena Regional
CheapestClosest
Average driving time to city center7 min
Flights from $414

Frequently asked questions

How much does a flight from Sioux Falls Regional Airport (FSD) to Helena Regional Airport (HLN) cost?
Lock in a cheap one-way flight from $239 or cheap return flight from $259 from Sioux Falls Regional Airport (FSD) to Helena Regional Airport (HLN) 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 Sioux Falls Regional Airport (FSD) to Helena Regional Airport (HLN)?
The cheapest month to fly from FSD to HLN is January, when demand is low. Off-peak season is generally when better flight deals are available between these airports.
What is the cheapest airline that flies from Sioux Falls Regional Airport (FSD) to Helena Regional Airport (HLN)?
To find the cheapest airline that'll fly you from FSD to HLN, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Sioux Falls Regional Airport (FSD) to Helena Regional Airport (HLN)?
There are no daily nonstop flights available from Sioux Falls Regional Airport (FSD) to Helena Regional Airport (HLN). But you can book flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be soaring above the clouds in no time at all.
What day of the week has the most flights from FSD to HLN?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Sioux Falls Regional Airport (FSD) to Helena Regional Airport (HLN)?
To avoid possible delays on the Sioux Falls Regional Airport (FSD) to Helena Regional Airport (HLN) route, fly 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 Sioux Falls Regional Airport (FSD) to Helena Regional Airport (HLN) last-minute?
Booking your plane ticket from FSD to HLN just before your trip is typically more expensive. But if there's some wiggle room with your itinerary, you could snag a cheap last-minute fare.
Is it cheaper to book a FSD to HLN flight and hotel package?
You'll generally save money by securing a FSD to HLN flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. Once you've selected your preferred flights and accommodations, consider adding extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Sioux Falls Regional Airport (FSD) to Helena Regional Airport (HLN)?
If you reserved your FSD to HLN flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.

Travel information

Origin airport
Sioux Falls Regional
Destination airport
Helena Regional
Airlines serving
Delta, United
Roundtrip price
$259
Distance
771 mi

Book with confidence

Sioux Falls to Helena Flights

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

 

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

Sunday is one of the best days to book for cheap flights from Sioux 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 Sioux 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 Sioux Falls to Helena in 2025. You can also book with separate airlines for your outbound and return journeys, from $239 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 Sioux 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 Sioux 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.

 

Sioux Falls to Helena Flights

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*Available to One Key members.