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Helena

$339+ 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 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — HLN
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from South Dakota to Helena

Best flights from South Dakota to Helena
Discover carefully curated flight deals from South Dakota to Helena that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/15. 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 1/289:00 amFSD - HLN
1 stop5h 41mUnited Airlines
Sat 1/316:15 amHLN - FSD
1 stop5h 41mUnited Airlines
Deal found 12/15$339
This United Airlines deal was found by Cheapflights users on 12/16. 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 2/269:00 amFSD - HLN
1 stop5h 40mUnited Airlines
Mon 3/22:25 pmHLN - FSD
1 stop21h 30mUnited Airlines
Deal found 12/16$552
This Delta deal was found by Cheapflights users on 12/16. 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 2/265:00 amFSD - HLN
2 stops8h 25mDelta
Mon 3/21:05 pmHLN - FSD
2 stops8h 49mDelta
Deal found 12/16$1,560

Find 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 December 18, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$339
(United Airlines)
Provider with most accurate pricing for Sioux Falls Joe Foss Field-Helena flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sioux Falls Joe Foss Field-Helena flights.
Search Deals
From South Dakota to Helena
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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 December 18, 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

Wed 1/28

9:00 am-1:41 pm

1 stop5h 41m

Helena

Sat 1/31

6:15 am-12:56 pm

1 stop5h 41m

$339

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

Thu 2/26

9:00 am-1:40 pm

1 stop5h 40m

Helena

Mon 3/2

2:25 pm-12:55 pm

1 stop21h 30m

$552

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

Thu 2/26

5:00 am-12:25 pm

2 stops8h 25m

Helena

Mon 3/2

1:05 pm-10:54 pm

2 stops8h 49m

$1,560

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

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, October is the cheapest month in which you can book a flight from South Dakota to Helena (average of $117). Flying from South Dakota 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.

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.

  • How long is the flight from South Dakota to Helena?

    Airlines like United Airlines fly from South Dakota to Helena in about 5h 41m. The time it takes to get you to your destination can typically vary by up to . The distance from South Dakota to Helena is about 770 mi.

  • 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, October is the cheapest month in which you can book a flight from South Dakota to Helena (average of $117). Flying from South Dakota 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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