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Helena

$361+ 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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — HLN
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheap 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 January 27, 2026.

This United Airlines deal was found by Cheapflights users on 1/24. 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 1/279:00 am
FSD
-
HLN
1 stop5h 41m
United Airlines
Sat 1/312:27 pm
HLN
-
FSD
1 stop4h 57m
United Airlines
Deal found 1/24$424

Find 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 January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$361
(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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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 January 27, 2026.
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

Fri 3/6

9:00 am-1:38 pm

1 stop5h 38m

Helena

Fri 3/13

2:30 pm-8:40 pm

1 stop5h 10m

$361

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

  • 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 June is currently the most expensive (average of $345). 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.

Reviews of airlines servicing Helena

Get insights into the airlines that provide service to Helena. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Helena. Reviews last updated January 27, 2026.
Peruse reviews from past customers who have flown with United Airlines from Sioux Falls to Helena to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,205 reviews

Food

6.6

Overall

7.4

Crew

8.1

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,205 reviews
United Airlines
7.4
Good
9,205 reviews

Food

6.6

Overall

7.4

Crew

8.1

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 38m. United Airlines provides one of the quickest options available for as low as $361. Sioux Falls and Helena are separated by a distance of 770 mi.

  • What is the cheapest airline to fly from Sioux Falls to Helena round-trip?

    Our cheapest airline available from Sioux Falls to Helena is United Airlines. Our recent data shows that you can find tickets from as low as $248 on this airline.

  • 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 June is currently the most expensive (average of $345). 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.

See more FAQs

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Top airline flying from Sioux Falls to Helena

Discover the top airline that operate flights from Sioux Falls to Helena. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$248Average$496FlexibilityNo cancel feeOn-time69%

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