$125 Cheap Flights from Boise (BOI) to Charleston (CHS)

View $125 flight on Wed, Sep 24, 2025Opens in a new window

Popular airlines from Boise Airport (BOI) to Charleston Intl. Airport (CHS)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • one key icon

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Boise to Charleston (BOI-CHS)

Prices were available within the past 7 days and start at $125 for one-way flights and $251 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Oct 29 - Sat, Nov 8
BOI
Boise
CHS
Charleston
$251 Roundtrip, found 10 hours ago
$251
Roundtrip
found 10 hours ago
Select Delta flight, departing Wed, Oct 29 from Boise to Charleston, returning Sat, Nov 8, priced at $251 found 10 hours ago
Alaska Airlines
Wed, Oct 22 - Sat, Oct 25
BOI
Boise
CHS
Charleston
$253 Roundtrip, found 1 day ago
$253
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Wed, Oct 22 from Boise to Charleston, returning Sat, Oct 25, priced at $253 found 1 day ago
Alaska Airlines
Sat, Sep 13 - Wed, Sep 17
BOI
Boise
CHS
Charleston
$253 Roundtrip, found 4 days ago
$253
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, Sep 13 from Boise to Charleston, returning Wed, Sep 17, priced at $253 found 4 days ago
Alaska Airlines
Sun, Aug 31 - Tue, Sep 2
BOI
Boise
CHS
Charleston
$254 Roundtrip, found 11 hours ago
$254
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Sun, Aug 31 from Boise to Charleston, returning Tue, Sep 2, priced at $254 found 11 hours ago
Delta
Wed, Oct 29 - Wed, Nov 5
BOI
Boise
CHS
Charleston
$256 Roundtrip, found 10 hours ago
$256
Roundtrip
found 10 hours ago
Select Delta flight, departing Wed, Oct 29 from Boise to Charleston, returning Wed, Nov 5, priced at $256 found 10 hours ago
Delta
Wed, Oct 1 - Tue, Oct 7
BOI
Boise
CHS
Charleston
$258 Roundtrip, found 5 hours ago
$258
Roundtrip
found 5 hours ago
Select Delta flight, departing Wed, Oct 1 from Boise to Charleston, returning Tue, Oct 7, priced at $258 found 5 hours ago
United
Sun, Aug 31 - Tue, Sep 2
BOI
Boise
CHS
Charleston
$260 Roundtrip, found 11 hours ago
$260
Roundtrip
found 11 hours ago
Select United flight, departing Sun, Aug 31 from Boise to Charleston, returning Tue, Sep 2, priced at $260 found 11 hours ago
Delta
Fri, Oct 31 - Wed, Nov 5
BOI
Boise
CHS
Charleston
$261 Roundtrip, found 10 hours ago
$261
Roundtrip
found 10 hours ago
Select Delta flight, departing Fri, Oct 31 from Boise to Charleston, returning Wed, Nov 5, priced at $261 found 10 hours ago
Southwest Airlines
Sat, Nov 15 - Wed, Nov 19
BOI
Boise
CHS
Charleston
$291 Roundtrip, found 12 hours ago
$291
Roundtrip
found 12 hours ago
Select Southwest Airlines flight, departing Sat, Nov 15 from Boise to Charleston, returning Wed, Nov 19, priced at $291 found 12 hours ago
Hawaiian Airlines
Tue, Oct 14 - Tue, Oct 21
BOI
Boise
CHS
Charleston
$296 Roundtrip, found 1 day ago
$296
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Tue, Oct 14 from Boise to Charleston, returning Tue, Oct 21, priced at $296 found 1 day ago

Find the cheapest month to fly from Boise (BOI) to Charleston (CHS)

October is typically the cheapest month to fly

From $187 - $604 per traveler.

Graph displaying average flight prices per month

Alternative airports near Charleston

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

Select flight to Charleston Intl. CHS. Cheapest and Closest option available. Average driving time to city center is 16 minutes. Flights from $384
CHS
Charleston Intl.
CheapestClosest
Average driving time to city center16 min
Flights from $384
Flights from Boise (BOI) to Charleston (CHS)
Origin airport
Boise
Destination airport
Charleston Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, Southwest Airlines, United
Roundtrip price
$250
Distance
2078 mi

Boise to Charleston Flights

The cheapest times to fly from Boise to Charleston

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 Boise to Charleston are during the month of October. You can find some of the cheapest flights from Boise to Charleston with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Boise to Charleston

Sunday is one of the best days to book for cheap flights from Boise to Charleston: 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 Boise to Charleston

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 Boise to Charleston in 2025. You can also book with separate airlines for your outbound and return journeys, from $125 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 Boise to Charleston 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 Boise to Charleston 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 Boise Airport (BOI) to Charleston Intl. Airport (CHS) cost?
Discover the latest flight deals from BOI to CHS by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from BOI to CHS?
The cheapest flights from BOI to CHS are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from BOI to CHS?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from BOI to CHS. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Boise Airport (BOI) to Charleston Intl. Airport (CHS)?
You'll need to catch a flight with a layover when traveling from Boise Airport (BOI) to Charleston Intl. Airport (CHS). There are no daily direct flights on this route. However, just filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from BOI to CHS?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Boise Airport (BOI) to Charleston Intl. Airport (CHS)?
To arrive at Charleston Intl. Airport (CHS) on schedule, pick a flight that leaves from Boise Airport (BOI) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**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 Boise Airport (BOI) to Charleston Intl. Airport (CHS) last-minute?
Booking your flight from BOI to CHS shortly before your journey is typically more expensive. However, if there's some wiggle room with your itinerary, you could snag a cheap last-minute fare.
Is it cheaper to book a BOI to CHS flight and hotel package?
Booking a BOI to CHS flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Choose from our extensive range of hotels and then add activities, car rentals and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Boise Airport (BOI) to Charleston Intl. Airport (CHS)?
If you booked your BOI to CHS flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of fare 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, go to our Customer Service portal for more information.

Explore a world of travel with Expedia

*Available to One Key members.