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Helena

$319+ Cheap flights from Sioux Falls to Helena (FSD - HLN)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — HLN
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Cheap flight deals from Sioux Falls to Helena

Discover tips and strategies to find the most affordable flight options for your journey from Sioux Falls (FSD) to Helena (HLN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$319
(United Airlines)
Provider with most accurate pricing for Sioux Falls Joe Foss Field-Helena flight deals.
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Provider most trusted by Cheapflights users for Sioux Falls Joe Foss Field-Helena flights.
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From Sioux Falls Joe Foss Field to Helena
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Find flight deals from Sioux Falls to Helena

Cheapest flights from Sioux Falls to Helena
Explore the most affordable flight options available from Sioux Falls to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/115:18 amFSD - HLN
2 stops8h 08mDelta
Sat 11/151:06 pmHLN - FSD
2 stops8h 54mDelta
Deal found 10/27$454
This United Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/118:00 amFSD - HLN
2 stops14h 22mUnited Airlines
Sat 11/152:22 pmHLN - FSD
1 stop5h 01mUnited Airlines
Deal found 10/27$528

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sioux Falls to Helena that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 28, 2025.
Use the filters below to find and compare flights from Sioux Falls to Helena that are best for you.

Fly from

Sioux Falls

Fly to

Helena

Route

Depart

Return

Price

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

Sat 2/21

9:00 am-1:40 pm

1 stop5h 40m

Helena

Wed 2/25

2:25 pm-8:39 pm

1 stop5h 14m

$319

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

Sat 2/21

1:20 pm-10:38 pm

2 stops10h 18m

Helena

Wed 2/25

5:35 am-7:18 pm

2 stops12h 43m

$449

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

Tue 11/11

5:18 am-12:26 pm

2 stops8h 08m

Helena

Sat 11/15

1:06 pm-11:00 pm

2 stops8h 54m

$454

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

Tue 11/11

8:00 am-9:22 pm

2 stops14h 22m

Helena

Sat 11/15

2:22 pm-8:23 pm

1 stop5h 01m

$528

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/25

  • Most accurate provider: When it comes to deals on Sioux Falls-Helena flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sioux Falls-Helena flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sioux Falls-Helena flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sioux Falls-Helena flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sioux Falls-Helena flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Sioux Falls to Helena

Have a flexible travel schedule? Discover the best time to fly to Helena from Sioux Falls with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Sioux Falls to Helena

What is the cheapest month to book a flight from Sioux Falls to Helena?

Currently, October is the cheapest month in which you can book a flight from Sioux Falls to Helena (average of $117). Flying from Sioux Falls to Helena in January is currently the most expensive (average of $406). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Sioux Falls to Helena. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Sioux Falls to Helena?

    A quick flight from Sioux Falls to Helena can take about 5h 40m. United Airlines provides one of the quickest options available for as low as $319. Sioux Falls and Helena are separated by a distance of 770 mi.

  • Can I find deals for flights from Sioux Falls to Helena that include hotel bookings?

    Yes. In addition to deals on Sioux Falls to Helena flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Sioux Falls to Helena?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sioux Falls to Helena.

  • Can I find deals for business class flights from Sioux Falls to Helena?

    Yes. Cheapflights offers flight deals from Sioux Falls to Helena by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Sioux Falls to Helena?

    Currently, October is the cheapest month in which you can book a flight from Sioux Falls to Helena (average of $117). Flying from Sioux Falls to Helena in January is currently the most expensive (average of $406). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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