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Cheap flights from Sioux Falls to Helena from $319

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Sioux Falls to Helena departing on 2/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Sioux Falls to Helena (FSD-HLN)

Cheap round-trip flights

United Airlines Logo
9:14 am - 1:27 pmFSD-HLN
5h 13m1 stop
United Airlines Logo
2:30 pm - 8:46 pmHLN-FSD
5h 16m1 stop
$319United Airlines
Find Deal
Sat, Feb 21 - Wed, Feb 25
United Airlines Logo
9:25 am - 4:04 pmFSD-HLN
7h 39m1 stop
United Airlines Logo
5:20 pm - 11:40 pmHLN-FSD
5h 20m1 stop
$329United Airlines
Find Deal
Sat, Sep 20 - Tue, Sep 23
United Airlines Logo
11:20 am - 10:14 pmFSD-HLN
11h 54m2 stops
United Airlines Logo
5:20 pm - 11:40 pmHLN-FSD
5h 20m1 stop
$359United Airlines
Find Deal
Sat, Sep 20 - Tue, Sep 23
United Airlines Logo
11:20 am - 8:59 pmFSD-HLN
10h 39m2 stops
United Airlines Logo
2:30 pm - 8:46 pmHLN-FSD
5h 16m1 stop
$433United Airlines
Find Deal
Sat, Feb 21 - Wed, Feb 25
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
$522United Airlines
Find Deal
Fri, Oct 10 - Wed, Oct 15
United Airlines Logo
11:20 am - 8:59 pmFSD-HLN
10h 39m2 stops
United Airlines Logo
7:00 am - 9:47 pmHLN-FSD
13h 47m2 stops
$584United Airlines
Find Deal
Sat, Feb 21 - Wed, Feb 25
United Airlines Logo
6:10 pm - 2:07 pmFSD-HLN
20h 57m2 stops
United Airlines Logo
5:18 pm - 10:42 amHLN-FSD
16h 24m1 stop
$612United Airlines
Find Deal
Fri, Oct 10 - Wed, Oct 15
Delta Logo
10:58 am - 10:38 pmFSD-HLN
12h 40m2 stops
Delta Logo
5:35 am - 7:18 pmHLN-FSD
12h 43m2 stops
$643Delta
Find Deal
Sat, Feb 21 - Wed, Feb 25
United Airlines Logo
11:20 am - 10:14 pmFSD-HLN
11h 54m2 stops
United Airlines Logo
6:30 am - 5:27 pmHLN-FSD
9h 57m2 stops
$708United Airlines
Find Deal
Sat, Sep 20 - Tue, Sep 23
Delta Logo
4:24 pm - 10:16 pmFSD-HLN
6h 52m2 stops
Delta Logo
1:00 pm - 10:57 pmHLN-FSD
8h 57m2 stops
$1,198Delta
Find Deal
Fri, Oct 10 - Wed, Oct 15

United Airlines flights from Sioux Falls to Helena

Our best United Airlines deals on Sioux Falls to Helena flight tickets
United Airlines
Feb 21
FSD9:14 amSioux Falls Joe Foss Field
5h 13m
1 stop
HLN1:27 pmHelena
Feb 25
HLN2:30 pmHelena
5h 16m
1 stop
FSD8:46 pmSioux Falls Joe Foss Field
$319
Find similar
United Airlines
Sep 20
FSD9:25 amSioux Falls Joe Foss Field
7h 39m
1 stop
HLN4:04 pmHelena
Sep 23
HLN5:20 pmHelena
5h 20m
1 stop
FSD11:40 pmSioux Falls Joe Foss Field
$329
Find similar
United Airlines
Sep 13
FSD9:25 amSioux Falls Joe Foss Field
7h 39m
1 stop
HLN4:04 pmHelena
Sep 21
HLN5:20 pmHelena
5h 20m
1 stop
FSD11:40 pmSioux Falls Joe Foss Field
$354
Find similar

Delta flights from Sioux Falls to Helena

Our best Delta deals on Sioux Falls to Helena flight tickets
Delta
Feb 21
FSD10:58 amSioux Falls Joe Foss Field
12h 40m
2 stops
HLN10:38 pmHelena
Feb 25
HLN5:35 amHelena
12h 43m
2 stops
FSD7:18 pmSioux Falls Joe Foss Field
$643
Find similar
Delta
Oct 10
FSD4:24 pmSioux Falls Joe Foss Field
6h 52m
2 stops
HLN10:16 pmHelena
Oct 15
HLN1:00 pmHelena
8h 57m
2 stops
FSD10:57 pmSioux Falls Joe Foss Field
$1,198
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Sioux Falls 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 September 8, 2025.
Use the filters below to find and compare flights from Sioux Falls 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

Sat 2/21

9:14 am-1:27 pm

1 stop5h 13m

Helena

Wed 2/25

2:30 pm-8:46 pm

1 stop5h 16m

$319

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

Sat 9/20

9:25 am-4:04 pm

1 stop7h 39m

Helena

Tue 9/23

5:20 pm-11:40 pm

1 stop5h 20m

$329

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

Sat 9/20

11:20 am-10:14 pm

2 stops11h 54m

Helena

Tue 9/23

5:20 pm-11:40 pm

1 stop5h 20m

$359

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

Sat 2/21

11:20 am-8:59 pm

2 stops10h 39m

Helena

Wed 2/25

2:30 pm-8:46 pm

1 stop5h 16m

$433

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

Fri 10/10

11:52 am-4:40 pm

1 stop5h 48m

Helena

Wed 10/15

5:18 pm-11:15 pm

1 stop4h 57m

$522

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

Sat 2/21

11:20 am-8:59 pm

2 stops10h 39m

Helena

Wed 2/25

7:00 am-9:47 pm

2 stops13h 47m

$584

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

Fri 10/10

6:10 pm-2:07 pm

2 stops20h 57m

Helena

Wed 10/15

5:18 pm-10:42 am

1 stop16h 24m

$612

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

Sat 2/21

10:58 am-10:38 pm

2 stops12h 40m

Helena

Wed 2/25

5:35 am-7:18 pm

2 stops12h 43m

$643

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

Sat 9/20

11:20 am-10:14 pm

2 stops11h 54m

Helena

Tue 9/23

6:30 am-5:27 pm

2 stops9h 57m

$708

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

Fri 10/10

4:24 pm-10:16 pm

2 stops6h 52m

Helena

Wed 10/15

1:00 pm-10:57 pm

2 stops8h 57m

$1,198

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 Sioux Falls 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 Sioux Falls 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.

When to book flights from Sioux Falls to Helena

Are you open to changing your travel dates? Check out the ideal times to fly from Sioux Falls to Helena according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Sioux Falls to Helena (FSD to HLN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sioux Falls to Helena

Direct flights

None
There are no direct flights from Sioux Falls to Helena. There are no popular flight routes from Sioux Falls to Helena.
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  • How far is Sioux Falls Joe Foss Field to Helena by plane?

    A flight from Sioux Falls Joe Foss Field to Helena will travel around 774.0 mi. By plane, this route typically takes 5h 13m.

  • When did momondo last update prices for flights from Sioux Falls Joe Foss Field Airport to Helena Airport?

    Prices for flights from Sioux Falls Joe Foss Field Airport to Helena Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Sioux Falls Joe Foss Field Airport to Helena Airport?

  • How old do you have to be to fly from Sioux Falls Joe Foss Field Airport to Helena Airport?

    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 Sioux Falls Joe Foss Field Airport to Helena Airport.

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

    The required travel and health documents for your Helena Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Helena Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Sioux Falls to Helena?

Best airlines flying from Sioux Falls to Helena

Compare and see reviews for airlines that fly from Sioux Falls to Helena with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $278Free CancellationRating
7.4
8,944 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Sioux Falls to Helena?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Sioux Falls to Helena for you.

Can I find flights from Sioux Falls to Helena with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Helena from Sioux Falls with this policy.

How can momondo help me find flights from Sioux Falls to Helena?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Sioux Falls to Helena.

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

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