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South Dakota

$444+ 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 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — FSD
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheap 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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$444
(United Airlines)
Provider with most accurate pricing for Helena-Sioux Falls Joe Foss Field flight deals.
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Provider most trusted by Cheapflights users for Helena-Sioux Falls Joe Foss Field flights.
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From Helena to South Dakota
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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 March 28, 2025.

This United Airlines deal was found by Cheapflights users on 3/27. 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.
Wed 4/306:45 amHLN - FSD
1 stop4h 53mUnited Airlines
Mon 5/59:23 amFSD - HLN
1 stop5h 08mUnited Airlines
Deal found 3/27$444
This Delta deal was found by Cheapflights users on 3/27. 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.
Wed 4/305:45 amHLN - FSD
2 stops12h 10mDelta
Mon 5/55:00 amFSD - HLN
2 stops8h 38mDelta
Deal found 3/27$798
This United deal was found by Cheapflights users on 3/27. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/72:12 pmHLN - FSD
2 stops19h 27mMultiple Airlines
Wed 4/91:45 pmFSD - HLN
3 stops26h 54mMultiple Airlines
Deal found 3/27$1,330

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 March 28, 2025.
Use the filters below to find and compare flights from Helena to South Dakota that are best for you.

Fly from

Helena

Fly to

South Dakota

Route

Depart

Return

Price

HelenaSioux Falls

HLN - FSD

HLNFSD

Helena

Wed 4/30

6:45 am-12:38 pm

1 stop4h 53m

Sioux Falls Joe Foss Field

Mon 5/5

9:23 am-1:31 pm

1 stop5h 08m

$444

HelenaSioux Falls

HLN - FSD

HLNFSD

Helena

Wed 4/30

5:45 am-6:55 pm

2 stops12h 10m

Sioux Falls Joe Foss Field

Mon 5/5

5:00 am-12:38 pm

2 stops8h 38m

$798

HelenaSioux Falls

HLN - FSD

HLNFSD

Helena

Mon 4/7

2:12 pm-10:39 am

2 stops19h 27m

Sioux Falls Joe Foss Field

Wed 4/9

1:45 pm-3:39 pm

3 stops26h 54m

$1,330

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

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

What is the cheapest month to book a flight from Helena to South Dakota?

Currently, September is the cheapest month in which you can book a flight from Helena to South Dakota (average of $334). Flying from Helena to South Dakota in December is currently the most expensive (average of $446). 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.

Rainfall in South Dakota by month

Plan your trip to South Dakota by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in South Dakota ranges from 0.6 - 3.9 inches per month. June is typically the wettest month, when rainfall can reach 3.9 in. January is typically the driest time to visit South Dakota when rainfall is around 0.6 in.

Temperature in South Dakota by month

Plan your trip to South Dakota by taking into account the average temperature totals by month.

If weather is an important factor for your trip to South Dakota, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 15.8 F).

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 March 28, 2025.
Delta
8.0
Very good
7,896 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,896 reviews
Delta
8.0
Very good
7,896 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,603 reviews
Delta
8.0
Very good
7,896 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

  • What is the cheapest month to book a flight from Helena to South Dakota?

    Currently, September is the cheapest month in which you can book a flight from Helena to South Dakota (average of $334). Flying from Helena to South Dakota in December is currently the most expensive (average of $446). 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 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$309Average$628FlexibilityNo cancel feeOn-time69%
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