Which airports can I use when flying from Sioux Falls to Helena?

Flights from Sioux Falls to Helena usually depart from Sioux Falls Joe Foss Field (FSD) and arrive at Helena (HLN).

Which airports do connecting flights from Sioux Falls to Helena pass through?

Most connecting flights from Sioux Falls to Helena pass through Denver Intl (DEN), which handles 100% of one-stop traffic on this route. Other layover airports each see under 5%.

Can I save money by using flexible dates for flights from Sioux Falls to Helena?

Yes. Being flexible with your travel dates can save you up to 76% on the Sioux Falls to Helena route. Wednesday is the cheapest departure day at $248 round-trip on average, while Tuesday is the most expensive at $1,020, a difference of $772. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Do I need a passport to fly from Sioux Falls to Helena?

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Have flight prices from Sioux Falls to Helena changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route varied from about $369 to $643. That means the highest observed fare was about 74% higher than the lowest one.

How are flight prices from Sioux Falls to Helena looking right now?

One-way fares from Sioux Falls to Helena are currently lower than usual. Average one-way flight prices are about $286, which is 43% below the typical average for this route.

What is the time difference between Sioux Falls and Helena?

Helena is 1 hour behind Sioux Falls (Mountain Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Helena Airport (HLN)?

Helena Airport (HLN) hosts 5 major car rental companies, with daily rates starting from around $25 for economy cars. Top options include: • Budget • Enterprise Rent-A-Car • Hertz • Avis • National

What is the cheapest airline to fly from Sioux Falls to Helena?

United Airlines ($369) and Delta ($379) are the cheapest airlines to fly round-trip from Sioux Falls to Helena according to KAYAK data over the last 5 days.

What is the cheapest layover airport when flying from Sioux Falls to Helena?

Flights via Denver Intl (DEN) offer the most affordable fares, with an average round-trip price of $767. Based on KAYAK data over the past 3 months.

When flying from Sioux Falls to Helena which airport offers the shortest layover?

Denver Intl (DEN) had the shortest average connection time for Sioux Falls to Helena layovers at 193 minutes over the past 3 months.

$284 CHEAP FLIGHTS from Sioux Falls to Helena (FSD - HLN)

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Cheapest round-trip

$369

Typical prices: $398-$1,020

United Airlines

Wed 9/26Sun 9/30

FSD - HLN • 1 stop

Cheapest one-way

$284

Typical prices: $498-$498

United Airlines

Sun 10/14

FSD - HLN • 1 stop

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Flight Deals

Cheap Flights from Sioux Falls to Helena (FSD-HLN)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Recent round-trip flight deals from Sioux Falls to Helena

Sat, Sep 26 - Wed, Sep 30

5:04 pm - 9:18 pmFSD Sioux Falls Joe Foss Field-HLN Helena

5h 14m1 stop Denver Intl

2:30 pm - 8:20 pmHLN Helena-FSD Sioux Falls Joe Foss Field

4h 50m1 stop Denver Intl

$369United Airlines

Sat, Sep 26 - Wed, Sep 30

4:28 pm - 10:29 pmFSD Sioux Falls Joe Foss Field-HLN Helena

7h 01m2 stops Minneapolis St Paul Salt Lake City

12:57 pm - 10:51 pmHLN Helena-FSD Sioux Falls Joe Foss Field

8h 54m2 stops Salt Lake City Minneapolis St Paul

$379Delta

Sat, Nov 14 - Wed, Nov 18

5:06 pm - 9:31 pmFSD Sioux Falls Joe Foss Field-HLN Helena

5h 25m1 stop Denver Intl

2:23 pm - 8:04 pmHLN Helena-FSD Sioux Falls Joe Foss Field

4h 41m1 stop Denver Intl

$399United Airlines

Sat, Nov 14 - Wed, Nov 18

6:00 am - 1:40 pmFSD Sioux Falls Joe Foss Field-HLN Helena

8h 40m2 stops Chicago O'Hare Intl Denver Intl

6:28 am - 12:35 pmHLN Helena-FSD Sioux Falls Joe Foss Field

5h 07m1 stop Denver Intl

$404United Airlines

Sat, Nov 14 - Wed, Nov 18

5:06 pm - 9:31 pmFSD Sioux Falls Joe Foss Field-HLN Helena

5h 25m1 stop Denver Intl

2:23 pm - 8:04 pmHLN Helena-FSD Sioux Falls Joe Foss Field

4h 41m1 stop Denver Intl

$419United Airlines

Sat, Nov 14 - Wed, Nov 18

6:00 am - 1:40 pmFSD Sioux Falls Joe Foss Field-HLN Helena

8h 40m2 stops Chicago O'Hare Intl Denver Intl

6:28 am - 12:35 pmHLN Helena-FSD Sioux Falls Joe Foss Field

5h 07m1 stop Denver Intl

$424United Airlines

Booking Insights

Price, demand and travel trends for Sioux Falls to Helena flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Sioux Falls to Helena with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from Sioux Falls to Helena?

Round-trip flights from Sioux Falls to Helena start at $369. Prices are below average for this route right now, with typical round-trip fares ranging from $398 to $1,020. The lowest price found in the past 5 days was $369 on United Airlines.

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Cheapest flight	$284

Flight from Sioux Falls to Helena

When to book flights from Sioux Falls to Helena

Are your dates flexible? Find out the best times to travel from Sioux Falls to Helena based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Which airports can I use when flying from Sioux Falls to Helena?
Flights from Sioux Falls to Helena usually depart from Sioux Falls Joe Foss Field (FSD) and arrive at Helena (HLN).
Which airports do connecting flights from Sioux Falls to Helena pass through?
Most connecting flights from Sioux Falls to Helena pass through Denver Intl (DEN), which handles 100% of one-stop traffic on this route. Other layover airports each see under 5%.
Can I save money by using flexible dates for flights from Sioux Falls to Helena?
Yes. Being flexible with your travel dates can save you up to 76% on the Sioux Falls to Helena route. Wednesday is the cheapest departure day at $248 round-trip on average, while Tuesday is the most expensive at $1,020, a difference of $772. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.
Do I need a passport to fly from Sioux Falls to Helena?
No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.
Have flight prices from Sioux Falls to Helena changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route varied from about $369 to $643. That means the highest observed fare was about 74% higher than the lowest one.
How are flight prices from Sioux Falls to Helena looking right now?
One-way fares from Sioux Falls to Helena are currently lower than usual. Average one-way flight prices are about $286, which is 43% below the typical average for this route.
What is the time difference between Sioux Falls and Helena?
Helena is 1 hour behind Sioux Falls (Mountain Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.
What car rental options are available at Helena Airport (HLN)?
Helena Airport (HLN) hosts 5 major car rental companies, with daily rates starting from around $25 for economy cars. Top options include:
• Budget
• Enterprise Rent-A-Car
• Hertz
• Avis
• National

If your dates can be flexible, aim for a Wednesday departure instead of Tuesday. On this route, Wednesday flights average $248 - about $772 less than Tuesday (76% savings) based on the last 12 months.
If you're arriving late at night and need somewhere to stay, check out these hotels close to Helena Airport.
- Days Inn by Wyndham Helena
- Americas Best Value Inn & Suites Helena
- Baymont by Wyndham Helena

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FSD - HLN

$284 Find Cheap Flights from Sioux Falls to Helena - Compare and Save

Everything you should know

Cheap Flights from Sioux Falls to Helena (FSD-HLN)

Recent round-trip flight deals from Sioux Falls to Helena

Recent one-way flight deals from Sioux Falls to Helena

Price, demand and travel trends for Sioux Falls to Helena flights

How much is a round-trip flight from Sioux Falls to Helena?

What is the cheapest airline to fly from Sioux Falls to Helena?

What is the cheapest layover airport when flying from Sioux Falls to Helena?

When flying from Sioux Falls to Helena which airport offers the shortest layover?

Key details for Sioux Falls to Helena flights

Cheapest flight

When to book flights from Sioux Falls to Helena

Your Sioux Falls to Helena flight questions, answered

Your guide to booking Sioux Falls to Helena flights

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