What airlines fly to South Dakota?

United Airlines, Delta and American Airlines are the top three most popular airlines that fly to South Dakota from Helena according to our data. United Airlines is the first choice among our users, with 67% of people opting to fly with this airline when traveling to South Dakota. Keep in mind that there are 3 different airlines that fly to South Dakota on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Helena Airport to South Dakota?

Prices for flights from Helena Airport to South Dakota refresh daily.

How many operators does momondo search for flights from Helena Airport to South Dakota?

As of July 2025, there is 1 operator available to choose from for flights from Helena Airport to South Dakota.

How old do you have to be to fly from Helena Airport to South Dakota?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Helena Airport to South Dakota.

What documentation or ID do you need to fly to South Dakota?

The necessary travel and health documents for your South Dakota trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$298 Cheap Flights from Helena to South Dakota in 2025

1 adult

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Find the cheapest flights from Helena to South Dakota

Round-trip

Cheap round-trip flights

5:39 pm - 11:06 pmHLN-FSD

4h 27m1 stop

9:15 am - 1:30 pmFSD-HLN

5h 15m1 stop

$298United Airlines

Find Deal

Tue, Aug 12 - Tue, Aug 19

5:39 pm - 11:37 pmHLN-FSD

4h 58m1 stop

5:10 pm - 9:15 pmFSD-HLN

5h 05m1 stop

$353United Airlines

Find Deal

Wed, Jul 30 - Sun, Aug 3

5:39 pm - 10:00 pmHLN-FSD

27h 21m2 stops

9:15 am - 1:30 pmFSD-HLN

5h 15m1 stop

$493United Airlines

Find Deal

Tue, Aug 12 - Tue, Aug 19

5:39 pm - 11:37 pmHLN-FSD

4h 58m1 stop

8:00 am - 4:55 pmFSD-HLN

9h 55m2 stops

$575United Airlines

Find Deal

Wed, Jul 30 - Sun, Aug 3

5:39 pm - 10:00 pmHLN-FSD

27h 21m2 stops

6:11 pm - 4:04 pmFSD-HLN

22h 53m2 stops

$608United Airlines

Find Deal

Tue, Aug 12 - Tue, Aug 19

5:50 am - 2:36 pmHLN-FSD

7h 46m2 stops

1:01 pm - 10:47 pmFSD-HLN

10h 46m2 stops

$699Delta

Find Deal

Wed, Jul 30 - Sun, Aug 3

United Airlines flights from Helena to South Dakota

Our best United Airlines deals on Helena to South Dakota flight tickets

United Airlines

Aug 12

HLN5:39 pmHelena

4h 27m

1 stop

FSD11:06 pmSioux Falls Joe Foss Field

Aug 19

FSD9:15 amSioux Falls Joe Foss Field

5h 15m

1 stop

HLN1:30 pmHelena

$298

Find similar

United Airlines

Jul 30

HLN5:39 pmHelena

4h 58m

1 stop

FSD11:37 pmSioux Falls Joe Foss Field

Aug 3

FSD5:10 pmSioux Falls Joe Foss Field

5h 05m

1 stop

HLN9:15 pmHelena

$353

Find similar

United Airlines

Aug 12

HLN5:39 pmHelena

27h 21m

2 stops

FSD10:00 pmSioux Falls Joe Foss Field

Aug 19

FSD9:15 amSioux Falls Joe Foss Field

5h 15m

1 stop

HLN1:30 pmHelena

$493

Find similar

How to get the cheapest flight ticket from Helena to South Dakota

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to South Dakota?

The cheapest day to depart from Helena to South Dakota is on a Thursday. Travelers who choose to depart for South Dakota on a Thursday will often find tickets for as low as $353. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $739. These prices are subject to change though, so be sure to set up a Price Alert for flights to South Dakota.

What is the cheapest time of day to depart on your flight to South Dakota?

The cheapest time of day to fly to South Dakota is in the morning when flights can be purchased for as low as $571. At noon is when there is more demand to fly to South Dakota, so prices are often more expensive at around $601 per ticket.

Cheap Helena to South Dakota flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Helena to South Dakota

Best Price Found	$298
Fastest flight time	4h 27m
Direct flights	None
Airports in South Dakota	1 airport

The best flight deal from Helena to South Dakota found on momondo in the last 72 hours is $298

The fastest flight from Helena to South Dakota takes 4h 27m

There are no direct flights from Helena to South Dakota. Popular non-direct route for this connection is Helena Airport - Sioux Falls Joe Foss Field Airport.

There is 1 airport near South Dakota: Sioux Falls Joe Foss Field (FSD)

Search flight deals

When did momondo last update prices for flights from Helena Airport to South Dakota?
Prices for flights from Helena Airport to South Dakota refresh daily.
How many operators does momondo search for flights from Helena Airport to South Dakota?
As of July 2025, there is 1 operator available to choose from for flights from Helena Airport to South Dakota.
How old do you have to be to fly from Helena Airport to South Dakota?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Helena Airport to South Dakota.
What documentation or ID do you need to fly to South Dakota?
The necessary travel and health documents for your South Dakota trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Helena to South Dakota

Compare and see reviews for airlines that fly from Helena to South Dakota with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $378	Free Cancellation	Rating 7.4 8,863 reviews		Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Helena to South Dakota?

It is quick and easy to find Helena to South Dakota flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to South Dakota that suits you.

Can I find flights from Helena to South Dakota with flexible booking policies on momondo?

Flights from Helena to South Dakota with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Helena to South Dakota?

Once you have performed a search for Helena to South Dakota flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Helena to South Dakota right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to South Dakota from Helena. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.