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Helena

$239+ Cheap flights from South Dakota to Helena (HLN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/14. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — HLN
dic. 3 — dic. 101
mié. 12/3
mié. 12/10
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 noviembre 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$319
(United Airlines)

One-way from

$239
(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 South Dakota to Helena
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One-way flight from South Dakota to Helena
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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 noviembre 3, 2025.

This Delta deal was found by Cheapflights users on 11/2. 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.
vie. 11/75:20 amFSD - HLN
2 stops8h 00mDelta
dom. 11/91:06 pmHLN - FSD
2 stops8h 54mDelta
Deal found 11/2$364
This Delta deal was found by Cheapflights users on 11/3. 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.
vie. 11/214:19 pmFSD - HLN
2 stops7h 11mDelta
dom. 11/235:30 amHLN - FSD
2 stops9h 09mDelta
Deal found 11/3$429
This United Airlines deal was found by Cheapflights users on 11/3. 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. 11/218:57 amFSD - HLN
1 stop5h 30mUnited Airlines
dom. 11/236:40 amHLN - FSD
1 stop4h 51mUnited Airlines
Deal found 11/3$483
This United Airlines deal was found by Cheapflights users on 11/3. 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. 11/78:57 amFSD - HLN
1 stop5h 30mUnited Airlines
dom. 11/96:40 amHLN - FSD
1 stop4h 51mUnited Airlines
Deal found 11/3$599

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 noviembre 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

sáb. 2/21

9:00 am-1:40 pm

1 stop5h 40m

Helena

mié. 2/25

2:25 pm-8:39 pm

1 stop5h 14m

$319

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

vie. 11/21

4:19 pm-10:30 pm

2 stops7h 11m

Helena

dom. 11/23

5:30 am-3:39 pm

2 stops9h 09m

$429

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

vie. 11/21

8:57 am-1:27 pm

1 stop5h 30m

Helena

dom. 11/23

6:40 am-12:31 pm

1 stop4h 51m

$483

AberdeenHelena

ABR - HLN

ABRHLN

Aberdeen

sáb. 4/25

2:41 pm-10:34 pm

2 stops8h 53m

Helena

mié. 4/29

5:45 am-1:59 pm

2 stops7h 14m

$597

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

dom. 12/14

9:00 am-1:47 pm

1 stop5h 47m

$239

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

sáb. 12/13

9:00 am-1:47 pm

1 stop5h 47m

$239

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

dom. 12/14

5:14 am-12:25 pm

2 stops8h 11m

$244

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

sáb. 12/13

5:14 am-12:25 pm

2 stops8h 11m

$244

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

sáb. 12/13

1:10 pm-5:51 pm

3 stops29h 41m

$428

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/3

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 January is currently the most expensive (average of $406). 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 and Delta fly from South Dakota to Helena in about 5h 40m. The time it takes to get you to your destination can typically vary by up to 3h 13m. The distance from South Dakota to Helena is about 770 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 January is currently the most expensive (average of $406). 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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