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Cheap flights from Helena to Sioux Falls from $297

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Helena to Sioux Falls departing on 6/1. 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 Helena to Sioux Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
2:30 pm - 8:46 pm
HLN
-
FSD
5h 16m
1 stop
United Airlines Logo
5:00 pm - 8:59 pm
FSD
-
HLN
4h 59m
1 stop
$389United Airlines
Tue, Oct 27 - Sat, Oct 31
United Airlines Logo
2:30 pm - 8:46 pm
HLN
-
FSD
5h 16m
1 stop
United Airlines Logo
5:00 pm - 8:59 pm
FSD
-
HLN
4h 59m
1 stop
$399United Airlines
Tue, Oct 27 - Sat, Oct 31
Delta Logo
5:45 am - 3:28 pm
HLN
-
FSD
8h 43m
2 stops
Delta Logo
5:15 am - 12:23 pm
FSD
-
HLN
8h 08m
2 stops
$469Delta
Thu, Sep 10 - Sun, Sep 13
United Airlines Logo
2:30 pm - 8:46 pm
HLN
-
FSD
5h 16m
1 stop
United Airlines Logo
11:20 am - 8:59 pm
FSD
-
HLN
10h 39m
2 stops
$495United Airlines
Tue, Oct 27 - Sat, Oct 31
United Airlines Logo
2:30 pm - 8:46 pm
HLN
-
FSD
5h 16m
1 stop
United Airlines Logo
11:20 am - 8:59 pm
FSD
-
HLN
10h 39m
2 stops
$500United Airlines
Tue, Oct 27 - Sat, Oct 31
United Airlines Logo
2:30 pm - 9:43 pm
HLN
-
FSD
30h 13m
2 stops
United Airlines Logo
11:20 am - 8:59 pm
FSD
-
HLN
10h 39m
2 stops
$659United Airlines
Tue, Oct 27 - Sat, Oct 31
United Airlines Logo
2:29 pm - 8:04 pm
HLN
-
FSD
4h 35m
1 stop
United Airlines Logo
9:36 am - 9:16 pm
FSD
-
HLN
12h 40m
1 stop
$661United Airlines
Thu, Sep 10 - Sun, Sep 13
United Airlines Logo
2:30 pm - 9:43 pm
HLN
-
FSD
30h 13m
2 stops
United Airlines Logo
11:20 am - 8:59 pm
FSD
-
HLN
10h 39m
2 stops
$664United Airlines
Tue, Oct 27 - Sat, Oct 31
United Airlines Logo
2:20 pm - 10:38 am
HLN
-
FSD
19h 18m
1 stop
United Airlines Logo
6:30 pm - 1:33 pm
FSD
-
HLN
20h 03m
2 stops
$697United Airlines
Mon, Jun 1 - Fri, Jun 5
United Airlines Logo
6:15 am - 10:38 am
HLN
-
FSD
27h 23m
1 stop
United Airlines Logo
11:25 am - 1:33 pm
FSD
-
HLN
27h 08m
1 stop
$707United Airlines
Mon, Jun 1 - Fri, Jun 5

Delta flights from Helena to Sioux Falls

Our best Delta deals on Helena to Sioux Falls flight tickets
Delta
Sep 10
HLN5:45 amHelena
8h 43m
2 stops
FSD3:28 pmSioux Falls Joe Foss Field
Sep 13
FSD5:15 amSioux Falls Joe Foss Field
8h 08m
2 stops
HLN12:23 pmHelena
$469
Delta
Jun 1
HLN1:03 pmHelena
9h 08m
2 stops
FSD11:11 pmSioux Falls Joe Foss Field
Jun 4
FSD1:58 pmSioux Falls Joe Foss Field
9h 35m
2 stops
HLN10:33 pmHelena
$889

United Airlines flights from Helena to Sioux Falls

Our best United Airlines deals on Helena to Sioux Falls flight tickets
United Airlines
Oct 27
HLN2:30 pmHelena
5h 16m
1 stop
FSD8:46 pmSioux Falls Joe Foss Field
Oct 31
FSD5:00 pmSioux Falls Joe Foss Field
4h 59m
1 stop
HLN8:59 pmHelena
$389
United Airlines
Oct 27
HLN2:30 pmHelena
5h 16m
1 stop
FSD8:46 pmSioux Falls Joe Foss Field
Oct 31
FSD5:00 pmSioux Falls Joe Foss Field
4h 59m
1 stop
HLN8:59 pmHelena
$399
United Airlines
Oct 27
HLN2:30 pmHelena
5h 16m
1 stop
FSD8:46 pmSioux Falls Joe Foss Field
Oct 31
FSD11:20 amSioux Falls Joe Foss Field
10h 39m
2 stops
HLN8:59 pmHelena
$495

momondo Fare Finder

 
Customize your flight search to find flights from Helena to Sioux Falls 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 May 14, 2026.
Use the filters below to find and compare flights from Helena to Sioux Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

HelenaSioux Falls

HLN - FSD

HLNFSD

Helena

Tue 10/27

2:30 pm-8:46 pm

1 stop5h 16m

Sioux Falls Joe Foss Field

Sat 10/31

5:00 pm-8:59 pm

1 stop4h 59m

$389

HelenaSioux Falls

HLN - FSD

HLNFSD

Helena

Tue 10/27

2:30 pm-8:46 pm

1 stop5h 16m

Sioux Falls Joe Foss Field

Sat 10/31

5:00 pm-8:59 pm

1 stop4h 59m

$399

HelenaSioux Falls

HLN - FSD

HLNFSD

Helena

Thu 9/10

5:45 am-3:28 pm

2 stops8h 43m

Sioux Falls Joe Foss Field

Sun 9/13

5:15 am-12:23 pm

2 stops8h 08m

$469

HelenaSioux Falls

HLN - FSD

HLNFSD

Helena

Tue 10/27

2:30 pm-8:46 pm

1 stop5h 16m

Sioux Falls Joe Foss Field

Sat 10/31

11:20 am-8:59 pm

2 stops10h 39m

$495

HelenaSioux Falls

HLN - FSD

HLNFSD

Helena

Tue 10/27

2:30 pm-8:46 pm

1 stop5h 16m

Sioux Falls Joe Foss Field

Sat 10/31

11:20 am-8:59 pm

2 stops10h 39m

$500

HelenaSioux Falls

HLN - FSD

HLNFSD

Helena

Tue 10/27

2:30 pm-9:43 pm

2 stops30h 13m

Sioux Falls Joe Foss Field

Sat 10/31

11:20 am-8:59 pm

2 stops10h 39m

$659

HelenaSioux Falls

HLN - FSD

HLNFSD

Helena

Thu 9/10

2:29 pm-8:04 pm

1 stop4h 35m

Sioux Falls Joe Foss Field

Sun 9/13

9:36 am-9:16 pm

1 stop12h 40m

$661

HelenaSioux Falls

HLN - FSD

HLNFSD

Helena

Tue 10/27

2:30 pm-9:43 pm

2 stops30h 13m

Sioux Falls Joe Foss Field

Sat 10/31

11:20 am-8:59 pm

2 stops10h 39m

$664

HelenaSioux Falls

HLN - FSD

HLNFSD

Helena

Mon 6/1

2:20 pm-10:38 am

1 stop19h 18m

Sioux Falls Joe Foss Field

Fri 6/5

6:30 pm-1:33 pm

2 stops20h 03m

$697

HelenaSioux Falls

HLN - FSD

HLNFSD

Helena

Mon 6/1

6:15 am-10:38 am

1 stop27h 23m

Sioux Falls Joe Foss Field

Fri 6/5

11:25 am-1:33 pm

1 stop27h 08m

$707

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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See travel insights to Sioux Falls from

How to get the cheapest flight ticket from Helena to Sioux Falls

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 Sioux Falls Joe Foss Field?

United Airlines and Delta are the most popular carriers operating from Helena to Sioux Falls Joe Foss Field

When to book flights from Helena to Sioux Falls

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

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

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

Fastest flight time

4h 48m

Direct flights

None
The fastest flight from Helena to Sioux Falls takes 4h 48m
There are no direct flights from Helena to Sioux Falls. There are no popular flight routes from Helena to Sioux Falls.
Search flight deals

Frequently asked questions about flying from Helena to Sioux Falls

  • How far is Helena to Sioux Falls Joe Foss Field by plane?

    A flight from Helena to Sioux Falls Joe Foss Field will travel around 774.0 mi. 4h 48m is a normal flight duration for this route.

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

    Prices for flights from Helena Airport to Sioux Falls Joe Foss Field Airport were last updated today.

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Helena Airport to Sioux Falls Joe Foss Field Airport.

  • What documentation or ID do you need to fly to Sioux Falls Joe Foss Field Airport?

    The travel and health documents you'll need for your trip to Sioux Falls Joe Foss Field Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Sioux Falls Joe Foss Field Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Sioux Falls?

Book flights to Sioux Falls if you plan to visit one of these locations
Yankton
Marshall
Worthington

Why use momondo?

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

It is quick and easy to find Helena to Sioux Falls 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 Sioux Falls that suits you.

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

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

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

momondo helps you find the best flight between Helena and Sioux Falls by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to Sioux Falls from Helena are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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