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.

$259 Cheap Flights from Helena to South Dakota in 2025/26

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0 bags

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Find the cheapest flights from Helena to South Dakota

Round-trip

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:06 pm - 11:12 pmHLN-FSD

9h 06m2 stops

5:00 am - 12:27 pmFSD-HLN

8h 27m2 stops

$259Delta

Find Deal

Wed, Dec 17 - Tue, Jan 6

1:06 pm - 11:12 pmHLN-FSD

9h 06m2 stops

5:00 am - 12:27 pmFSD-HLN

8h 27m2 stops

$304Delta

Find Deal

Thu, Dec 18 - Tue, Jan 6

6:30 am - 12:51 pmHLN-FSD

5h 21m1 stop

8:50 am - 1:45 pmFSD-HLN

5h 55m1 stop

$319United Airlines

Find Deal

Wed, Dec 17 - Mon, Jan 5

2:30 pm - 8:38 pmHLN-FSD

5h 08m1 stop

9:00 am - 1:27 pmFSD-HLN

5h 27m1 stop

$364United Airlines

Find Deal

Sat, Mar 7 - Wed, Mar 11

2:30 pm - 8:21 pmHLN-FSD

4h 51m1 stop

11:22 am - 9:26 pmFSD-HLN

11h 04m2 stops

$369United Airlines

Find Deal

Wed, Dec 17 - Tue, Jan 6

1:06 pm - 11:12 pmHLN-FSD

9h 06m2 stops

5:00 am - 10:30 pmFSD-HLN

18h 30m2 stops

$398Delta

Find Deal

Wed, Dec 17 - Sun, Jan 4

2:30 pm - 8:21 pmHLN-FSD

4h 51m1 stop

11:27 am - 9:31 pmFSD-HLN

11h 04m2 stops

$403United Airlines

Find Deal

Wed, Dec 17 - Mon, Jan 5

2:26 pm - 8:00 pmHLN-FSD

4h 34m1 stop

11:22 am - 9:26 pmFSD-HLN

11h 04m2 stops

$414United Airlines

Find Deal

Sun, Dec 21 - Tue, Jan 6

1:06 pm - 11:12 pmHLN-FSD

9h 06m2 stops

1:02 pm - 12:27 pmFSD-HLN

24h 25m2 stops

$422Delta

Find Deal

Wed, Dec 17 - Mon, Jan 5

5:30 am - 11:08 pmHLN-FSD

16h 38m2 stops

5:00 am - 12:27 pmFSD-HLN

8h 27m2 stops

$428Delta

Find Deal

Sun, Dec 21 - Tue, Jan 6

Delta flights from Helena to South Dakota

Our best Delta deals on Helena to South Dakota flight tickets

Delta

Dec 17

HLN1:06 pmHelena

9h 06m

2 stops

FSD11:12 pmSioux Falls Joe Foss Field

Jan 6

FSD5:00 amSioux Falls Joe Foss Field

8h 27m

2 stops

HLN12:27 pmHelena

$259

Find similar

Delta

Dec 18

HLN1:06 pmHelena

9h 06m

2 stops

FSD11:12 pmSioux Falls Joe Foss Field

Jan 6

FSD5:00 amSioux Falls Joe Foss Field

8h 27m

2 stops

HLN12:27 pmHelena

$304

Find similar

Delta

Dec 17

HLN1:06 pmHelena

9h 06m

2 stops

FSD11:12 pmSioux Falls Joe Foss Field

Jan 4

FSD5:00 amSioux Falls Joe Foss Field

18h 30m

2 stops

HLN10:30 pmHelena

$398

Find similar

United Airlines flights from Helena to South Dakota

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

United Airlines

Dec 17

HLN6:30 amHelena

5h 21m

1 stop

FSD12:51 pmSioux Falls Joe Foss Field

Jan 5

FSD8:50 amSioux Falls Joe Foss Field

5h 55m

1 stop

HLN1:45 pmHelena

$319

Find similar

United Airlines

Mar 7

HLN2:30 pmHelena

5h 08m

1 stop

FSD8:38 pmSioux Falls Joe Foss Field

Mar 11

FSD9:00 amSioux Falls Joe Foss Field

5h 27m

1 stop

HLN1:27 pmHelena

$364

Find similar

United Airlines

Dec 17

HLN2:30 pmHelena

4h 51m

1 stop

FSD8:21 pmSioux Falls Joe Foss Field

Jan 6

FSD11:22 amSioux Falls Joe Foss Field

11h 04m

2 stops

HLN9:26 pmHelena

$369

Find similar

Fly from

Fly to

Route

Depart

Return

Price

HelenaSioux Falls

HLN - FSD

HLNFSD

Helena

Wed 12/17

1:06 pm-11:12 pm

2 stops9h 06m

Sioux Falls Joe Foss Field

Tue 1/6

5:00 am-12:27 pm

2 stops8h 27m

$259

HelenaSioux Falls

HLN - FSD

HLNFSD

Helena

Thu 12/18

1:06 pm-11:12 pm

2 stops9h 06m

Sioux Falls Joe Foss Field

Tue 1/6

5:00 am-12:27 pm

2 stops8h 27m

$304

HelenaSioux Falls

HLN - FSD

HLNFSD

Helena

Wed 12/17

6:30 am-12:51 pm

1 stop5h 21m

Sioux Falls Joe Foss Field

Mon 1/5

8:50 am-1:45 pm

1 stop5h 55m

$319

HelenaSioux Falls

HLN - FSD

HLNFSD

Helena

Sat 3/7

2:30 pm-8:38 pm

1 stop5h 08m

Sioux Falls Joe Foss Field

Wed 3/11

9:00 am-1:27 pm

1 stop5h 27m

$364

HelenaSioux Falls

HLN - FSD

HLNFSD

Helena

Wed 12/17

2:30 pm-8:21 pm

1 stop4h 51m

Sioux Falls Joe Foss Field

Tue 1/6

11:22 am-9:26 pm

2 stops11h 04m

$369

HelenaSioux Falls

HLN - FSD

HLNFSD

Helena

Wed 12/17

1:06 pm-11:12 pm

2 stops9h 06m

Sioux Falls Joe Foss Field

Sun 1/4

5:00 am-10:30 pm

2 stops18h 30m

$398

HelenaSioux Falls

HLN - FSD

HLNFSD

Helena

Wed 12/17

2:30 pm-8:21 pm

1 stop4h 51m

Sioux Falls Joe Foss Field

Mon 1/5

11:27 am-9:31 pm

2 stops11h 04m

$403

HelenaSioux Falls

HLN - FSD

HLNFSD

Helena

Sun 12/21

2:26 pm-8:00 pm

1 stop4h 34m

Sioux Falls Joe Foss Field

Tue 1/6

11:22 am-9:26 pm

2 stops11h 04m

$414

HelenaSioux Falls

HLN - FSD

HLNFSD

Helena

Wed 12/17

1:06 pm-11:12 pm

2 stops9h 06m

Sioux Falls Joe Foss Field

Mon 1/5

1:02 pm-12:27 pm

2 stops24h 25m

$422

HelenaSioux Falls

HLN - FSD

HLNFSD

Helena

Sun 12/21

5:30 am-11:08 pm

2 stops16h 38m

Sioux Falls Joe Foss Field

Tue 1/6

5:00 am-12:27 pm

2 stops8h 27m

$428

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 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

Direct flights	None

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

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 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 $270	Free Cancellation	Rating 7.4 9,007 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.