$103 Cheap Flights from Boise (BOI) to Charleston (CHS)

View $103 flight on Sat, Sep 13, 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 $103 for one-way flights and $212 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, Sep 13 - Sat, Sep 27
BOI
Boise
CHS
Charleston
$212 Roundtrip, found 5 days ago
$212
Roundtrip
found 5 days ago
Select Delta flight, departing Sat, Sep 13 from Boise to Charleston, returning Sat, Sep 27, priced at $212 found 5 days ago
American Airlines
Sat, Nov 1 - Sat, Nov 8
BOI
Boise
CHS
Charleston
$214 Roundtrip, found 6 days ago
$214
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat, Nov 1 from Boise to Charleston, returning Sat, Nov 8, priced at $214 found 6 days ago
Alaska Airlines
Tue, Sep 9 - Sat, Sep 13
BOI
Boise
CHS
Charleston
$215 Roundtrip, found 6 days ago
$215
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Tue, Sep 9 from Boise to Charleston, returning Sat, Sep 13, priced at $215 found 6 days ago
Delta
Tue, Oct 28 - Wed, Nov 12
BOI
Boise
CHS
Charleston
$227 Roundtrip, found 3 days ago
$227
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Oct 28 from Boise to Charleston, returning Wed, Nov 12, priced at $227 found 3 days ago
Delta
Sun, Aug 31 - Wed, Sep 3
BOI
Boise
CHS
Charleston
$229 Roundtrip, found 4 days ago
$229
Roundtrip
found 4 days ago
Select Delta flight, departing Sun, Aug 31 from Boise to Charleston, returning Wed, Sep 3, priced at $229 found 4 days ago
Southwest Airlines
Sat, Nov 1 - Sat, Nov 8
BOI
Boise
CHS
Charleston
$229 Roundtrip, found 6 days ago
$229
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Sat, Nov 1 from Boise to Charleston, returning Sat, Nov 8, priced at $229 found 6 days ago
Delta
Tue, Sep 23 - Tue, Sep 30
BOI
Boise
CHS
Charleston
$232 Roundtrip, found 9 hours ago
$232
Roundtrip
found 9 hours ago
Select Delta flight, departing Tue, Sep 23 from Boise to Charleston, returning Tue, Sep 30, priced at $232 found 9 hours ago
Delta
Sun, Aug 31 - Sat, Sep 13
BOI
Boise
CHS
Charleston
$234 Roundtrip, found 5 days ago
$234
Roundtrip
found 5 days ago
Select Delta flight, departing Sun, Aug 31 from Boise to Charleston, returning Sat, Sep 13, priced at $234 found 5 days ago
Southwest Airlines
Sat, Nov 1 - Sat, Nov 8
BOI
Boise
CHS
Charleston
$235 Roundtrip, found 6 days ago
$235
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Sat, Nov 1 from Boise to Charleston, returning Sat, Nov 8, priced at $235 found 6 days ago
United
Tue, Oct 28 - Fri, Oct 31
BOI
Boise
CHS
Charleston
$239 Roundtrip, found 4 hours ago
$239
Roundtrip
found 4 hours ago
Select United flight, departing Tue, Oct 28 from Boise to Charleston, returning Fri, Oct 31, priced at $239 found 4 hours ago

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

October is typically the cheapest month to fly

From $203 - $605 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 $342
CHS
Charleston Intl.
CheapestClosest
Average driving time to city center16 min
Flights from $342
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
$212
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 September. 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 $103 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?
Lock in a cheap one-way flight from $103 or cheap return flight from $212 from Boise Airport (BOI) to Charleston Intl. Airport (CHS) 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 Boise Airport (BOI) to Charleston Intl. Airport (CHS)?
September is the cheapest month to fly from BOI to CHS. Traveling during an off-peak travel window is often the key to finding a great deal.
What is the cheapest airline that flies from Boise Airport (BOI) to Charleston Intl. Airport (CHS)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest BOI to CHS flight.
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.