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Cheap flights from South Dakota to Helena from $259

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from South Dakota to Helena departing on 8/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from South Dakota to Helena

Cheap round-trip flights

United Airlines Logo
5:06 pm - 9:11 pmFSD-HLN
5h 05m1 stop
United Airlines Logo
5:20 pm - 11:00 pmHLN-FSD
4h 40m1 stop
$259United Airlines
Find Deal
Tue, Aug 26 - Sat, Aug 30
United Airlines Logo
11:20 am - 9:11 pmFSD-HLN
10h 51m2 stops
United Airlines Logo
5:20 pm - 11:00 pmHLN-FSD
4h 40m1 stop
$264United Airlines
Find Deal
Tue, Aug 26 - Sat, Aug 30
United Airlines Logo
11:52 am - 4:40 pmFSD-HLN
5h 48m1 stop
United Airlines Logo
5:18 pm - 11:15 pmHLN-FSD
4h 57m1 stop
$354United Airlines
Find Deal
Fri, Sep 26 - Mon, Sep 29
United Airlines Logo
11:20 am - 9:11 pmFSD-HLN
10h 51m2 stops
United Airlines Logo
6:30 am - 5:29 pmHLN-FSD
9h 59m2 stops
$363United Airlines
Find Deal
Tue, Aug 26 - Sat, Aug 30
United Airlines Logo
11:52 am - 4:40 pmFSD-HLN
5h 48m1 stop
United Airlines Logo
5:18 pm - 11:15 pmHLN-FSD
4h 57m1 stop
$420United Airlines
Find Deal
Thu, Sep 25 - Sun, Sep 28
United Airlines Logo
5:14 pm - 9:00 pmFSD-HLN
4h 46m1 stop
United Airlines Logo
5:18 pm - 11:15 pmHLN-FSD
4h 57m1 stop
$451United Airlines
Find Deal
Fri, Sep 26 - Sun, Sep 28
United Airlines Logo
6:10 pm - 10:14 pmFSD-HLN
29h 04m2 stops
United Airlines Logo
5:18 pm - 11:15 pmHLN-FSD
4h 57m1 stop
$526United Airlines
Find Deal
Fri, Sep 26 - Mon, Sep 29
United Airlines Logo
11:52 am - 4:40 pmFSD-HLN
5h 48m1 stop
United Airlines Logo
5:18 pm - 10:22 pmHLN-FSD
28h 04m2 stops
$622United Airlines
Find Deal
Thu, Sep 25 - Sun, Sep 28
United Airlines Logo
6:10 pm - 10:14 pmFSD-HLN
29h 04m2 stops
United Airlines Logo
5:18 pm - 11:15 pmHLN-FSD
4h 57m1 stop
$625United Airlines
Find Deal
Fri, Sep 26 - Sun, Sep 28
Delta Logo
5:00 am - 12:20 pmFSD-HLN
8h 20m2 stops
Delta Logo
1:00 pm - 10:44 pmHLN-FSD
8h 44m2 stops
$1,209Delta
Find Deal
Thu, Sep 25 - Sun, Sep 28

United Airlines flights from South Dakota to Helena

Our best United Airlines deals on South Dakota to Helena flight tickets
United Airlines
Aug 26
FSD5:06 pmSioux Falls Joe Foss Field
5h 05m
1 stop
HLN9:11 pmHelena
Aug 30
HLN5:20 pmHelena
4h 40m
1 stop
FSD11:00 pmSioux Falls Joe Foss Field
$259
Find similar
United Airlines
Aug 26
FSD11:20 amSioux Falls Joe Foss Field
10h 51m
2 stops
HLN9:11 pmHelena
Aug 30
HLN5:20 pmHelena
4h 40m
1 stop
FSD11:00 pmSioux Falls Joe Foss Field
$264
Find similar
United Airlines
Sep 26
FSD11:52 amSioux Falls Joe Foss Field
5h 48m
1 stop
HLN4:40 pmHelena
Sep 29
HLN5:18 pmHelena
4h 57m
1 stop
FSD11:15 pmSioux Falls Joe Foss Field
$354
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated August 12, 2025.
Use the filters below to find and compare flights from South Dakota to Helena that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

Tue 8/26

5:06 pm-9:11 pm

1 stop5h 05m

Helena

Sat 8/30

5:20 pm-11:00 pm

1 stop4h 40m

$259

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

Tue 8/26

11:20 am-9:11 pm

2 stops10h 51m

Helena

Sat 8/30

5:20 pm-11:00 pm

1 stop4h 40m

$264

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

Fri 9/26

11:52 am-4:40 pm

1 stop5h 48m

Helena

Mon 9/29

5:18 pm-11:15 pm

1 stop4h 57m

$354

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

Tue 8/26

11:20 am-9:11 pm

2 stops10h 51m

Helena

Sat 8/30

6:30 am-5:29 pm

2 stops9h 59m

$363

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

Thu 9/25

11:52 am-4:40 pm

1 stop5h 48m

Helena

Sun 9/28

5:18 pm-11:15 pm

1 stop4h 57m

$420

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

Fri 9/26

5:14 pm-9:00 pm

1 stop4h 46m

Helena

Sun 9/28

5:18 pm-11:15 pm

1 stop4h 57m

$451

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

Fri 9/26

6:10 pm-10:14 pm

2 stops29h 04m

Helena

Mon 9/29

5:18 pm-11:15 pm

1 stop4h 57m

$526

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

Thu 9/25

11:52 am-4:40 pm

1 stop5h 48m

Helena

Sun 9/28

5:18 pm-10:22 pm

2 stops28h 04m

$622

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

Fri 9/26

6:10 pm-10:14 pm

2 stops29h 04m

Helena

Sun 9/28

5:18 pm-11:15 pm

1 stop4h 57m

$625

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

Thu 9/25

5:00 am-12:20 pm

2 stops8h 20m

Helena

Sun 9/28

1:00 pm-10:44 pm

2 stops8h 44m

$1,209

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Helena from

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

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 Helena?

The cheapest day to depart from South Dakota to Helena is on a Saturday. Travelers who choose to depart for Helena on a Saturday will often find tickets for as low as $347. The most expensive day to fly to Helena is Friday, with ticket prices averaging around $588.

Cheap South Dakota to Helena flight deals and tips

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

Best Price Found

$259

Fastest flight time

4h 46m

Direct flights

None

Airports in Helena

1 airport
The best flight deal from South Dakota to Helena found on momondo in the last 72 hours is $259
The fastest flight from South Dakota to Helena takes 4h 46m
There are no direct flights from South Dakota to Helena. Popular non-direct route for this connection is Sioux Falls Joe Foss Field Airport - Helena Airport.
There is 1 airport near Helena: Helena (HLN)
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  • When did momondo last update prices for flights from South Dakota to Helena Airport?

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from South Dakota to Helena Airport.

  • What documentation or ID do you need to fly to Helena Airport?

    The necessary travel and health documents for your Helena Airport 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 South Dakota to Helena

Compare and see reviews for airlines that fly from South Dakota to Helena with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $278Free CancellationRating
7.4
8,922 reviews
Search United Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from South Dakota to Helena. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Helena from South Dakota on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to Helena from South Dakota. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Helena from South Dakota. 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.

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