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Helena

$397+ Cheap flights from South Dakota to Helena (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 7/18. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — HLN
jul. 8 — jul. 151
mar. 7/8
mar. 7/15
1 adult, Economy
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Cheap flight deals from South Dakota to Helena

Keep the following information in mind while searching for South Dakota to Helena flight deals. Data was last updated julio 3, 2025.

Round-trip from

$397
(United Airlines)
From South Dakota to Helena
Search Deals

Find flight deals from South Dakota to Helena

Cheapest flights from South Dakota to Helena
Explore the most affordable flight options available from South Dakota to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 3, 2025.

This United Airlines deal was found by Cheapflights users on 7/2. 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.
vie. 7/115:10 pmFSD - HLN
1 stop5h 05mUnited Airlines
mar. 7/155:39 pmHLN - FSD
1 stop4h 58mUnited Airlines
Deal found 7/2$469
This Delta deal was found by Cheapflights users on 7/2. 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.
jue. 7/106:00 amFSD - HLN
2 stops7h 20mDelta
lun. 7/141:00 pmHLN - FSD
2 stops9h 44mDelta
Deal found 7/2$859

Cheapflights Fare Finder

Customize your flight search to find flights from South Dakota 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 julio 3, 2025.
Use the filters below to find and compare flights from South Dakota to Helena that are best for you.

Fly from

South Dakota

Fly to

Helena

Route

Depart

Return

Price

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

vie. 7/11

5:10 pm-9:15 pm

1 stop5h 05m

Helena

mar. 7/15

5:39 pm-11:37 pm

1 stop4h 58m

$469

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

jue. 7/10

6:00 am-12:20 pm

2 stops7h 20m

Helena

lun. 7/14

1:00 pm-11:44 pm

2 stops9h 44m

$859

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Best time to book a flight from South Dakota to Helena

Have a flexible travel schedule? Discover the best time to fly to Helena from South Dakota 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 South Dakota to Helena

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

Currently, February is the cheapest month in which you can book a flight from South Dakota to Helena (average of $353). Flying from South Dakota to Helena in July is currently the most expensive (average of $545). 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 julio 3, 2025.
Read through reviews of airlines operating flights from South Dakota to Helena, such as United Airlines. 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
8,861 reviews

Comfort

7.3

Entertainment

7.0

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,861 reviews
United Airlines
7.4
Good
8,861 reviews

Comfort

7.3

Entertainment

7.0

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from South Dakota to Helena. 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 into for flights to Helena from South Dakota?

    For a flight from South Dakota to Helena, you will be flying into Helena. Helena (HLN) is just 2.7 mi from the center of the city.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from South Dakota 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 South Dakota to Helena?

    Currently, February is the cheapest month in which you can book a flight from South Dakota to Helena (average of $353). Flying from South Dakota to Helena in July is currently the most expensive (average of $545). 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 South Dakota to Helena

Discover the top airline that operate flights from South Dakota 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 julio 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$278Average$463FlexibilityNo cancel feeOn-time69%

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