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

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

What cabin classes can I book on flights from Helena to Sioux Falls?

Only Economy Class is available on flights from Helena to Sioux Falls.

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

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

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

Yes. Flexible dates can save you up to 49% on flights from Helena to Sioux Falls. Tuesday is the cheapest departure day at $429 round-trip on average, while Thursday is the most expensive at $830, a difference of $401. 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 Helena to Sioux Falls?

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 Helena to Sioux Falls changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route varied from about $389 to $684. That means the highest observed fare was about 75% higher than the lowest one.

What is the time difference between Helena and Sioux Falls?

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

What car rental options are available at Sioux Falls Joe Foss Field Airport (FSD)?

Sioux Falls Joe Foss Field Airport (FSD) hosts 5 major car rental companies, with daily rates averaging $87 for economy cars. Top options include: • Hertz • Alamo • Enterprise Rent-A-Car • Budget • Avis

How much should I expect to pay for a Helena to Sioux Falls flight?

Round-trip flights from Helena to Sioux Falls range from $424 to $529, with an average of $493 over the past 12 months. Anything below $424 counts as a good deal.

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

Round-trip flights from Helena to Sioux Falls typically range from $424 to $529. The lowest price found in the past 5 days was $389, on United Airlines.

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

United Airlines ($389) offered the cheapest round-trip ticket from Helena to Sioux Falls in the last 5 days.

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

Flights via Denver Intl (DEN) offer the most affordable fares, with an average round-trip price of $513. Based on KAYAK data over the past 3 months.

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

Denver Intl (DEN) had the shortest average connection time for Helena to Sioux Falls layovers at 3h 24m over the past 3 months.

$389 CHEAP FLIGHTS from Helena to Sioux Falls (HLN - FSD)

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Cheapest round-trip

$389

Typical prices: $424-$529

United Airlines

Tue 11/13Sat 11/17

HLN - FSD • 1 stop

When to travel

October

Cheapest • 34% price drop

April

Most popular

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

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

Round-trip

One-way

Recent round-trip flight deals from Helena to Sioux Falls

Fri, Nov 13 - Tue, Nov 17

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

4h 41m1 stop Denver Intl

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

5h 25m1 stop Denver Intl

$389United Airlines

Fri, Nov 13 - Tue, Nov 17

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

4h 41m1 stop Denver Intl

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

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

$394United Airlines

Sat, Jan 30 - Tue, Feb 2

6:15 am - 12:25 pmHLN Helena-FSD Sioux Falls Joe Foss Field

5h 10m1 stop Denver Intl

5:13 pm - 9:32 pmFSD Sioux Falls Joe Foss Field-HLN Helena

5h 19m1 stop Denver Intl

$459United Airlines

Sat, Jan 30 - Tue, Feb 2

2:27 pm - 8:37 pmHLN Helena-FSD Sioux Falls Joe Foss Field

5h 10m1 stop Denver Intl

5:50 am - 1:40 pmFSD Sioux Falls Joe Foss Field-HLN Helena

8h 50m2 stops Chicago O'Hare Intl Denver Intl

$464United Airlines

Sat, Jan 30 - Tue, Feb 2

6:15 am - 12:25 pmHLN Helena-FSD Sioux Falls Joe Foss Field

5h 10m1 stop Denver Intl

11:19 am - 9:32 pmFSD Sioux Falls Joe Foss Field-HLN Helena

11h 13m2 stops Chicago O'Hare Intl Denver Intl

$464United Airlines

Booking Insights

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

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

Prices

Airlines

Layovers

How much is a round-trip flight from Helena to Sioux Falls? This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Helena to Sioux Falls departing in november.

Find deals

Low season	January
Cheapest flight	$389

Beat the crowds with an average 82% drop in travelers.

Round-trip flight from Helena to Sioux Falls

When to book flights from Helena to Sioux Falls

Are your dates flexible? Find out the best times to travel from Helena to Sioux Falls 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.

What cabin classes can I book on flights from Helena to Sioux Falls?
Only Economy Class is available on flights from Helena to Sioux Falls.
Do I need a passport to fly from Helena to Sioux Falls?
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.
How much should I expect to pay for a Helena to Sioux Falls flight?
Round-trip flights from Helena to Sioux Falls range from $424 to $529, with an average of $493 over the past 12 months. Anything below $424 counts as a good deal.
Have flight prices from Helena to Sioux Falls changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route varied from about $389 to $684. That means the highest observed fare was about 75% higher than the lowest one.
What car rental options are available at Sioux Falls Joe Foss Field Airport (FSD)?
Sioux Falls Joe Foss Field Airport (FSD) hosts 5 major car rental companies, with daily rates averaging $87 for economy cars. Top options include:

• Hertz
• Alamo
• Enterprise Rent-A-Car
• Budget
• Avis
Which airports can I use when flying from Helena to Sioux Falls?
Flights from Helena to Sioux Falls usually depart from Helena (HLN) and arrive at Sioux Falls Joe Foss Field (FSD).
Which airports do connecting flights from Helena to Sioux Falls pass through?
Most connecting flights from Helena to Sioux Falls pass through Denver Intl (DEN), which handles 100% of one-stop traffic on this route.
Can I save money by using flexible dates for flights from Helena to Sioux Falls?
Yes. Flexible dates can save you up to 49% on flights from Helena to Sioux Falls. Tuesday is the cheapest departure day at $429 round-trip on average, while Thursday is the most expensive at $830, a difference of $401.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.
What is the time difference between Helena and Sioux Falls?
Sioux Falls is 1 hour ahead of Helena (Central Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.

If your dates are flexible, aim for a Tuesday departure and avoid flying on Thursday. On this route, Tuesday flights average $429, about $401 less than Thursday fares (48% savings) based on the last 12 months.
If you can choose when to travel, plan your Helena to Sioux Falls trip for October. Fares historically average $323 round-trip in that month - typically $507 less than the most expensive month, which is September (based on the last 12 months).
If you're arriving late at night and need somewhere to stay, check out these hotels close to Sioux Falls Joe Foss Field Airport.

• Ramada by Wyndham Sioux Falls Airport-Waterpark & Event Ctr
• Baymont by Wyndham Sioux Falls North/I-29/Russell St
• AmericInn by Wyndham Sioux Falls North

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Everything you should know

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

Recent round-trip flight deals from Helena to Sioux Falls

Recent one-way flight deals from Helena to Sioux Falls

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

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

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

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

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

Key details for Helena to Sioux Falls flights

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When to book flights from Helena to Sioux Falls

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Your guide to booking Helena to Sioux Falls flights

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