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South Dakota

$384+ Cheap flights from Helena (HLN) to South Dakota

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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — FSD
May 29 — Jun 51
Fri 5/29
Fri 6/5
1 adult, Economy
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Cheap flight deals from Helena to South Dakota

Cheapest flights from Helena to South Dakota
Explore the most affordable flight options available from Helena to South Dakota. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2026.

This Delta deal was found by Cheapflights users on 4/29. 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.
Thu 8/2712:50 pm
HLN
-
FSD
2 stops8h 56m
Delta
Sun 8/305:15 am
FSD
-
HLN
2 stops8h 08m
Delta
Deal found 4/29$384
This Delta deal was found by Cheapflights users on 4/26. 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.
Wed 4/291:04 pm
HLN
-
FSD
2 stops8h 58m
Delta
Wed 5/64:17 pm
FSD
-
HLN
2 stops7h 13m
Delta
Deal found 4/26$484
This United Airlines deal was found by Cheapflights users on 4/26. 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.
Wed 4/296:15 am
HLN
-
FSD
1 stop5h 35m
United Airlines
Wed 5/69:00 am
FSD
-
HLN
1 stop5h 38m
United Airlines
Deal found 4/26$550
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Thu 9/102:29 pm
HLN
-
FSD
1 stop4h 35m
United Airlines
Sun 9/139:36 am
FSD
-
HLN
1 stop12h 40m
United Airlines
Deal found 4/29$583
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Thu 8/276:15 am
HLN
-
FSD
1 stop12h 49m
United Airlines
Sun 8/309:36 am
FSD
-
HLN
1 stop4h 56m
United Airlines
Deal found 4/29$741
This Delta deal was found by Cheapflights users on 4/29. 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.
Thu 9/105:45 am
HLN
-
FSD
2 stops8h 43m
Delta
Sun 9/135:15 am
FSD
-
HLN
2 stops8h 08m
Delta
Deal found 4/29$769

Find flight deals from Helena to South Dakota

Keep the following information in mind while searching for Helena to South Dakota flight deals. Data was last updated April 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars
Provider with most accurate pricing for Helena-Sioux Falls Joe Foss Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for Helena-Sioux Falls Joe Foss Field flights.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Helena to South Dakota 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 April 29, 2026.
Use the filters below to find and compare flights from Helena to South Dakota that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HelenaSioux Falls

HLN - FSD

HLNFSD

Helena

Thu 8/27

12:50 pm-10:46 pm

2 stops8h 56m

Sioux Falls Joe Foss Field

Sun 8/30

5:15 am-12:23 pm

2 stops8h 08m

$384
Quickest round-trip

HelenaSioux Falls

HLN - FSD

HLNFSD

Helena

Thu 9/10

5:45 am-3:28 pm

2 stops8h 43m

Sioux Falls Joe Foss Field

Sun 9/13

5:15 am-12:23 pm

2 stops8h 08m

$769

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Sorted by cheapest first

Best time to book a flight from Helena to South Dakota

Have a flexible travel schedule? Discover the best time to fly to South Dakota from Helena 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 Helena to South Dakota
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing South Dakota

Get insights into the airlines that provide service to South Dakota. 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 South Dakota. Reviews last updated April 29, 2026.
Get a feel of what it's like to fly with United Airlines from Helena to South Dakota by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,680 reviews

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
9,680 reviews
United Airlines
7.4
Good
9,680 reviews

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

Related info for your journey

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

  • What airport do you fly from for flights from Helena to South Dakota?

    Most people fly from Helena (HLN) if they book a flight from Helena to South Dakota. Helena is conveniently located just 2.7 mi from Helena’s city center.

  • Can I find deals for flights from Helena to South Dakota that include hotel bookings?

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

  • How can I find direct flights from Helena to South Dakota?

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

  • Can I find deals for business class flights from Helena to South Dakota?

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

See more FAQs

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Top airline flying from Helena to South Dakota

Discover the top airline that operate flights from Helena to South Dakota. 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 April 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$248Average$359FlexibilityNo cancel feeOn-time69%

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