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 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.

$300 Cheap Flights from Helena to South Dakota in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Helena to South Dakota

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:34 pm - 8:15 pm

HLN

FSD

4h 41m

1 stop

5:05 pm - 9:39 pm

FSD

HLN

5h 34m

1 stop

$389United Airlines

Tue, Nov 10 - Sat, Nov 14

2:34 pm - 8:15 pm

HLN

FSD

4h 41m

1 stop

11:20 am - 9:39 pm

FSD

HLN

11h 19m

2 stops

$473United Airlines

Tue, Nov 10 - Sat, Nov 14

2:34 pm - 8:15 pm

HLN

FSD

4h 41m

1 stop

11:20 am - 9:39 pm

FSD

HLN

11h 19m

2 stops

$527United Airlines

Tue, Nov 10 - Sat, Nov 14

2:34 pm - 9:45 pm

HLN

FSD

30h 11m

2 stops

11:20 am - 9:39 pm

FSD

HLN

11h 19m

2 stops

$638United Airlines

Tue, Nov 10 - Sat, Nov 14

2:34 pm - 9:45 pm

HLN

FSD

30h 11m

3 stops

5:05 pm - 9:39 pm

FSD

HLN

5h 34m

1 stop

$645United Airlines

Tue, Nov 10 - Sat, Nov 14

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United Airlines flights from Helena to South Dakota

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

United Airlines

Nov 10

HLN2:34 pmHelena

4h 41m

1 stop

FSD8:15 pmSioux Falls Joe Foss Field

Nov 14

FSD5:05 pmSioux Falls Joe Foss Field

5h 34m

1 stop

HLN9:39 pmHelena

$389

United Airlines

Nov 10

HLN2:34 pmHelena

4h 41m

1 stop

FSD8:15 pmSioux Falls Joe Foss Field

Nov 14

FSD11:20 amSioux Falls Joe Foss Field

11h 19m

2 stops

HLN9:39 pmHelena

$473

United Airlines

Nov 10

HLN2:34 pmHelena

4h 41m

1 stop

FSD8:15 pmSioux Falls Joe Foss Field

Nov 14

FSD11:20 amSioux Falls Joe Foss Field

11h 19m

2 stops

HLN9:39 pmHelena

$527

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

HelenaSioux Falls

HLN - FSD

HLNFSD

Helena

Tue 11/10

2:34 pm-8:15 pm

1 stop4h 41m

Sioux Falls Joe Foss Field

Sat 11/14

5:05 pm-9:39 pm

1 stop5h 34m

$389

HelenaSioux Falls

HLN - FSD

HLNFSD

Helena

Tue 11/10

2:34 pm-8:15 pm

1 stop4h 41m

Sioux Falls Joe Foss Field

Sat 11/14

11:20 am-9:39 pm

2 stops11h 19m

$473

HelenaSioux Falls

HLN - FSD

HLNFSD

Helena

Tue 11/10

2:34 pm-8:15 pm

1 stop4h 41m

Sioux Falls Joe Foss Field

Sat 11/14

11:20 am-9:39 pm

2 stops11h 19m

$527

HelenaSioux Falls

HLN - FSD

HLNFSD

Helena

Tue 11/10

2:34 pm-9:45 pm

2 stops30h 11m

Sioux Falls Joe Foss Field

Sat 11/14

11:20 am-9:39 pm

2 stops11h 19m

$638

HelenaSioux Falls

HLN - FSD

HLNFSD

Helena

Tue 11/10

2:34 pm-9:45 pm

3 stops30h 11m

Sioux Falls Joe Foss Field

Sat 11/14

5:05 pm-9:39 pm

1 stop5h 34m

$645

Cheapest one-way

Quickest one-way

HelenaSioux Falls

HLN - FSD

HLNFSD

Helena

Tue 8/4

6:15 am-12:15 pm

1 stop5h 00m

$300

HelenaSioux Falls

HLN - FSD

HLNFSD

Helena

Tue 8/4

12:55 pm-10:51 pm

2 stops8h 56m

$465

HelenaSioux Falls

HLN - FSD

HLNFSD

Helena

Tue 8/4

5:09 pm-7:23 pm

3 stops25h 14m

$742

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

What is the cheapest airline that flies from Helena to South Dakota?

United Airlines and Delta are the most popular carriers operating from Helena to South Dakota

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

Fastest flight time	4h 41m
Direct flights	None

The fastest flight from Helena to South Dakota takes 4h 41m

There are no direct flights from Helena to South Dakota. There are no popular flight routes from Helena to South Dakota.

Search flight deals

Frequently asked questions about flying from Helena to South Dakota

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 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 $248	Free Cancellation	Rating 7.4 9,909 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.