$209 Cheap Flights from Charleston (CHS) to Helena (HLN)

View $209 flight on Wed, Nov 19, 2025Opens in a new window

Popular airlines from Charleston Intl. Airport (CHS) to Helena, MT (HLN-Helena Regional)

Cheap Flights from Charleston to Helena (CHS-HLN)

Prices were available within the past 7 days and start at $209 for one-way flights and $352 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Fri, Nov 7 - Tue, Nov 11
CHS
Charleston
HLN
Helena
$352 Roundtrip, found 1 day ago
$352
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Fri, Nov 7 from Charleston to Helena, returning Tue, Nov 11, priced at $352 found 1 day ago
Alaska Airlines
Fri, Nov 14 - Tue, Nov 18
CHS
Charleston
HLN
Helena
$373 Roundtrip, just found
$373
Roundtrip
just found
Select Alaska Airlines flight, departing Fri, Nov 14 from Charleston to Helena, returning Tue, Nov 18, priced at $373 just found
Alaska Airlines
Fri, Nov 7 - Tue, Nov 11
CHS
Charleston
HLN
Helena
$382 Roundtrip, found 4 days ago
$382
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Fri, Nov 7 from Charleston to Helena, returning Tue, Nov 11, priced at $382 found 4 days ago
Alaska Airlines
Fri, Nov 14 - Tue, Nov 18
CHS
Charleston
HLN
Helena
$530 Roundtrip, just found
$530
Roundtrip
just found
Select Alaska Airlines flight, departing Fri, Nov 14 from Charleston to Helena, returning Tue, Nov 18, priced at $530 just found
Alaska Airlines
Fri, Nov 14 - Tue, Nov 18
CHS
Charleston
HLN
Helena
$535 Roundtrip, just found
$535
Roundtrip
just found
Select Alaska Airlines flight, departing Fri, Nov 14 from Charleston to Helena, returning Tue, Nov 18, priced at $535 just found
Delta
Sat, Nov 1 - Tue, Nov 4
CHS
Charleston
HLN
Helena
$571 Roundtrip, found 1 day ago
$571
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Nov 1 from Charleston to Helena, returning Tue, Nov 4, priced at $571 found 1 day ago
Alaska Airlines
Fri, Nov 14 - Tue, Nov 18
CHS
Charleston
HLN
Helena
$576 Roundtrip, just found
$576
Roundtrip
just found
Select Alaska Airlines flight, departing Fri, Nov 14 from Charleston to Helena, returning Tue, Nov 18, priced at $576 just found
Alaska Airlines
Wed, Oct 29 - Sun, Nov 2
CHS
Charleston
HLN
Helena
$580 Roundtrip, found 3 days ago
$580
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Wed, Oct 29 from Charleston to Helena, returning Sun, Nov 2, priced at $580 found 3 days ago
Alaska Airlines
Fri, Nov 7 - Tue, Nov 11
CHS
Charleston
HLN
Helena
$583 Roundtrip, found 4 days ago
$583
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Fri, Nov 7 from Charleston to Helena, returning Tue, Nov 11, priced at $583 found 4 days ago
United
Sat, Dec 20 - Sat, Jan 3
CHS
Charleston
HLN
Helena
$1,003 Roundtrip, found 4 hours ago
$1,003
Roundtrip
found 4 hours ago
Select United flight, departing Sat, Dec 20 from Charleston to Helena, returning Sat, Jan 3, priced at $1,003 found 4 hours ago

Frequently asked questions

How much does a flight from Charleston Intl. Airport (CHS) to Helena Regional Airport (HLN) cost?
Snag a cheap one-way flight from $209 or cheap return flight from $352 from Charleston Intl. Airport (CHS) to Helena Regional Airport (HLN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Charleston Intl. Airport (CHS) to Helena Regional Airport (HLN)?
The cheapest month to fly from CHS to HLN is November, when demand is low. Off-peak months are typically when airlines offer better prices between these airports.
What is the cheapest airline that flies from Charleston Intl. Airport (CHS) to Helena Regional Airport (HLN)?
To find the cheapest airline that'll fly you from CHS to HLN, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Charleston Intl. Airport (CHS) to Helena Regional Airport (HLN)?
There are no daily nonstop flights available from Charleston Intl. Airport (CHS) to Helena Regional Airport (HLN). But you can book flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from CHS to HLN?
Usually you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* However, this can vary based on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Charleston Intl. Airport (CHS) to Helena Regional Airport (HLN)?
To avoid potential delays on the Charleston Intl. Airport (CHS) to Helena Regional Airport (HLN) route, fly before 3 PM. Later flights have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Charleston Intl. Airport (CHS) to Helena Regional Airport (HLN) last-minute?
Booking your flight from CHS to HLN just before your journey is typically more expensive. But if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a CHS to HLN flight and hotel package?
Compared with arranging flights and hotels separately, booking a CHS to HLN flight and hotel package with Expedia could lead to significant savings. Better still, managing everything in one place will take the hassle out of planning your trip. Just pick your flights and choose from our wide range of hotels, then tailor your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Charleston Intl. Airport (CHS) to Helena Regional Airport (HLN)?
If you reserved your CHS to HLN flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more information.

Travel information

Origin airport
Charleston Intl.
Destination airport
Helena Regional
Airlines serving
Alaska Airlines, Delta, United
Roundtrip price
$352
Distance
1925 mi

Book with confidence

Charleston to Helena Flights

The cheapest times to fly from Charleston to Helena

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Charleston to Helena are during the month of November. You can find some of the cheapest flights from Charleston to Helena with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Charleston to Helena

Sunday is one of the best days to book for cheap flights from Charleston to Helena: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Charleston to Helena

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Charleston to Helena in 2025. You can also book with separate airlines for your outbound and return journeys, from $209 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Charleston to Helena flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Charleston to Helena airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Charleston to Helena Flights

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*Available to One Key members.