$217 Cheap Flights from Charleston (CHS) to Helena (HLN)

View $217 flight on Tue, Sep 30, 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 $217 for one-way flights and $422 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue, Oct 7 - Tue, Oct 21
CHS
Charleston
HLN
Helena
$422 Roundtrip, found 7 hours ago
$422
Roundtrip
found 7 hours ago
Select Alaska Airlines flight, departing Tue, Oct 7 from Charleston to Helena, returning Tue, Oct 21, priced at $422 found 7 hours ago
Delta
Sat, Oct 4 - Tue, Oct 14
CHS
Charleston
HLN
Helena
$433 Roundtrip, found 3 days ago
$433
Roundtrip
found 3 days ago
Select Delta flight, departing Sat, Oct 4 from Charleston to Helena, returning Tue, Oct 14, priced at $433 found 3 days ago
Alaska Airlines
Mon, Oct 6 - Tue, Oct 21
CHS
Charleston
HLN
Helena
$442 Roundtrip, found 7 hours ago
$442
Roundtrip
found 7 hours ago
Select Alaska Airlines flight, departing Mon, Oct 6 from Charleston to Helena, returning Tue, Oct 21, priced at $442 found 7 hours ago
Alaska Airlines
Wed, Nov 19 - Tue, Dec 9
CHS
Charleston
HLN
Helena
$452 Roundtrip, found 7 hours ago
$452
Roundtrip
found 7 hours ago
Select Alaska Airlines flight, departing Wed, Nov 19 from Charleston to Helena, returning Tue, Dec 9, priced at $452 found 7 hours ago
Alaska Airlines
Sat, Oct 4 - Tue, Oct 21
CHS
Charleston
HLN
Helena
$453 Roundtrip, found 3 days ago
$453
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sat, Oct 4 from Charleston to Helena, returning Tue, Oct 21, priced at $453 found 3 days ago
Delta
Sat, Oct 4 - Tue, Oct 14
CHS
Charleston
HLN
Helena
$460 Roundtrip, found 6 days ago
$460
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, Oct 4 from Charleston to Helena, returning Tue, Oct 14, priced at $460 found 6 days ago
Alaska Airlines
Mon, Oct 6 - Mon, Oct 20
CHS
Charleston
HLN
Helena
$462 Roundtrip, found 7 hours ago
$462
Roundtrip
found 7 hours ago
Select Alaska Airlines flight, departing Mon, Oct 6 from Charleston to Helena, returning Mon, Oct 20, priced at $462 found 7 hours ago
Alaska Airlines
Thu, Nov 20 - Tue, Dec 9
CHS
Charleston
HLN
Helena
$472 Roundtrip, found 7 hours ago
$472
Roundtrip
found 7 hours ago
Select Alaska Airlines flight, departing Thu, Nov 20 from Charleston to Helena, returning Tue, Dec 9, priced at $472 found 7 hours ago
Hawaiian Airlines
Wed, Oct 15 - Tue, Nov 4
CHS
Charleston
HLN
Helena
$482 Roundtrip, found 7 hours ago
$482
Roundtrip
found 7 hours ago
Select Hawaiian Airlines flight, departing Wed, Oct 15 from Charleston to Helena, returning Tue, Nov 4, priced at $482 found 7 hours ago
United
Mon, Sep 22 - Wed, Sep 24
CHS
Charleston
HLN
Helena
$518 Roundtrip, found 3 days ago
$518
Roundtrip
found 3 days ago
Select United flight, departing Mon, Sep 22 from Charleston to Helena, returning Wed, Sep 24, priced at $518 found 3 days ago

Alternative airports near Helena

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Helena Regional HLN. Cheapest and Closest option available. Average driving time to city center is 7 minutes. Flights from $581
HLN
Helena Regional
CheapestClosest
Average driving time to city center7 min
Flights from $581
Flights from Charleston (CHS) to Helena (HLN)
Origin airport
Charleston Intl.
Destination airport
Helena Regional
Airlines serving
Alaska Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$422
Distance
1925 mi

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 October. 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 $217 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.

 

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 $217 or cheap return flight from $422 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 October, 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.

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*Available to One Key members.