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

Travelers seeking maximum savings on their Sioux Falls to Helena flight should consider departing on Saturday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Helena ranges from 0.3 - 2.1 inches per month. June is typically the wettest month, when rainfall can reach 2.1 in. February is typically the driest time to visit Helena when rainfall is around 0.3 in.

If weather is an important factor for your trip to Helena, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 21.2 F).

What is the cheapest day to fly round-trip from Sioux Falls to Helena?

Users have found that flying from Sioux Falls to Helena on a Thursday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

What is the cheapest time of day to fly from FSD to HLN?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Sioux Falls to Helena as you normally would.

Can I find deals for flights from Sioux Falls to Helena that include hotel bookings?

Yes. In addition to deals on Sioux Falls to Helena flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Sioux Falls to Helena?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sioux Falls to Helena.

Can I find deals for business class flights from Sioux Falls to Helena?

Yes. Cheapflights offers flight deals from Sioux Falls to Helena by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$472+ Flights from Sioux Falls to Helena

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Sioux Falls to Helena with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Sioux Falls to Helena

Round-trip from	$472 (United Airlines)

From Sioux Falls Joe Foss Field to Helena

Search Deals

Find flight deals from Sioux Falls to Helena

Cheapest flights from Sioux Falls to Helena
Explore the most affordable flight options available from Sioux Falls to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 18, 2025.

Thu 7/319:15 amFSD - HLN

1 stop5h 43mUnited Airlines

Mon 8/45:39 pmHLN - FSD

1 stop4h 27mUnited Airlines

Deal found 7/16

$472

Thu 7/313:16 pmFSD - HLN

2 stops8h 31mDelta

Mon 8/41:00 pmHLN - FSD

2 stops9h 44mDelta

Deal found 7/16

$1,159

Best flights from Sioux Falls to Helena
Discover carefully curated flight deals from Sioux Falls to Helena that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 18, 2025.

Thu 7/319:15 amFSD - HLN

1 stop5h 43mUnited Airlines

Mon 8/45:39 pmHLN - FSD

1 stop4h 27mUnited Airlines

Deal found 7/16

$472

Thu 7/313:16 pmFSD - HLN

2 stops8h 31mDelta

Mon 8/41:00 pmHLN - FSD

2 stops9h 44mDelta

Deal found 7/16

$1,159

Last-minute flights from Sioux Falls to Helena
Discover last-minute flight deals from Sioux Falls to Helena. Data last updated July 18, 2025 and is based on user searches.

Thu 7/319:15 amFSD - HLN

1 stop5h 43mUnited Airlines

Mon 8/45:39 pmHLN - FSD

1 stop4h 27mUnited Airlines

Deal found 7/16

$472

Thu 7/313:16 pmFSD - HLN

2 stops8h 31mDelta

Mon 8/41:00 pmHLN - FSD

2 stops9h 44mDelta

Deal found 7/16

$1,159

Cheapflights Fare Finder

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

Thu 7/31

9:15 am-1:58 pm

1 stop5h 43m

Helena

Mon 8/4

5:39 pm-11:06 pm

1 stop4h 27m

$472

Sioux FallsHelena

FSD - HLN

FSDHLN

Sioux Falls Joe Foss Field

Thu 7/31

3:16 pm-10:47 pm

2 stops8h 31m

Helena

Mon 8/4

1:00 pm-11:44 pm

2 stops9h 44m

$1,159

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/16

Best time to book a flight from Sioux Falls to Helena

Have a flexible travel schedule? Discover the best time to fly to Helena from Sioux Falls with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Sioux Falls to Helena

What is the cheapest month to book a flight from Sioux Falls to Helena?

Currently, February is the cheapest month in which you can book a flight from Sioux Falls to Helena (average of $353). Flying from Sioux Falls to Helena in July is currently the most expensive (average of $526). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Helena

Peruse reviews from past customers who have flown with Delta and United Airlines from Sioux Falls to Helena to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,958 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,958 reviews

Delta

8.0

Very good

7,958 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,864 reviews

Delta

8.0

Very good

7,958 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Can I find deals for flights from Sioux Falls to Helena that include hotel bookings?
Yes. In addition to deals on Sioux Falls to Helena flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Sioux Falls to Helena?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sioux Falls to Helena.
Can I find deals for business class flights from Sioux Falls to Helena?
Yes. Cheapflights offers flight deals from Sioux Falls to Helena by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Sioux Falls to Helena?
Currently, February is the cheapest month in which you can book a flight from Sioux Falls to Helena (average of $353). Flying from Sioux Falls to Helena in July is currently the most expensive (average of $526). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Sioux Falls to Helena

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$278	Average$463	FlexibilityNo cancel fee	On-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$472+ Cheap flights from Sioux Falls to Helena (FSD - HLN)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/31. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Sioux Falls to Helena with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Sioux Falls to Helena

Round-trip from

Find flight deals from Sioux Falls to Helena

Cheapest flights from Sioux Falls to HelenaExplore the most affordable flight options available from Sioux Falls to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 18, 2025.

Explore the most affordable flight options available from Sioux Falls to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 18, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Sioux Falls to Helena that are best for you.

Best time to book a flight from Sioux Falls to Helena

Have a flexible travel schedule? Discover the best time to fly to Helena from Sioux Falls with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Sioux Falls to Helena

What is the cheapest month to book a flight from Sioux Falls to Helena?

Reviews of airlines servicing Helena

Get insights into the airlines that provide service to Helena. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Helena. Reviews last updated July 18, 2025.

Peruse reviews from past customers who have flown with Delta and United Airlines from Sioux Falls to Helena to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Sioux Falls to Helena. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

Can I find deals for flights from Sioux Falls to Helena that include hotel bookings?

How can I find direct flights from Sioux Falls to Helena?

Can I find deals for business class flights from Sioux Falls to Helena?

What is the cheapest month to book a flight from Sioux Falls to Helena?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Sioux Falls to Helena

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Sioux Falls to Helena

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Sioux Falls to Helena
Explore the most affordable flight options available from Sioux Falls to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 18, 2025.