$55 Cheap Flights from Baltimore (BWI) to Charleston (CHS)

View $55 flight on Fri, May 16, 2025Opens in a new window

Popular airlines from Baltimore Washington Intl. Airport (BWI) to Charleston Intl. Airport (CHS)

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Find available prices by choosing your travel dates.

Cheap Flights from Baltimore to Charleston (BWI-CHS)

Prices were available within the past 7 days and start at $55 for one-way flights and $110 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Fri, May 16 - Mon, May 19
BWI
Baltimore
CHS
Charleston
$110 Roundtrip, just found
$110
Roundtrip
just found
Select Spirit Airlines flight, departing Fri, May 16 from Baltimore to Charleston, returning Mon, May 19, priced at $110 just found
Spirit Airlines
Fri, May 30 - Fri, Jun 6
BWI
Baltimore
CHS
Charleston
$120 Roundtrip, found 2 hours ago
$120
Roundtrip
found 2 hours ago
Select Spirit Airlines flight, departing Fri, May 30 from Baltimore to Charleston, returning Fri, Jun 6, priced at $120 found 2 hours ago
Spirit Airlines
Fri, Oct 3 - Mon, Oct 6
BWI
Baltimore
CHS
Charleston
$130 Roundtrip, just found
$130
Roundtrip
just found
Select Spirit Airlines flight, departing Fri, Oct 3 from Baltimore to Charleston, returning Mon, Oct 6, priced at $130 just found
Spirit Airlines
Fri, May 16 - Sat, May 17
BWI
Baltimore
CHS
Charleston
$143 Roundtrip, found 3 hours ago
$143
Roundtrip
found 3 hours ago
Select Spirit Airlines flight, departing Fri, May 16 from Baltimore to Charleston, returning Sat, May 17, priced at $143 found 3 hours ago
Spirit Airlines
Fri, May 9 - Mon, May 12
BWI
Baltimore
CHS
Charleston
$150 Roundtrip, found 1 hour ago
$150
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Fri, May 9 from Baltimore to Charleston, returning Mon, May 12, priced at $150 found 1 hour ago
Spirit Airlines
Mon, Jun 2 - Thu, Jun 5
BWI
Baltimore
CHS
Charleston
$153 Roundtrip, found 2 hours ago
$153
Roundtrip
found 2 hours ago
Select Spirit Airlines flight, departing Mon, Jun 2 from Baltimore to Charleston, returning Thu, Jun 5, priced at $153 found 2 hours ago
American Airlines
Wed, May 21 - Fri, May 23
BWI
Baltimore
CHS
Charleston
$179 Roundtrip, found 13 hours ago
$179
Roundtrip
found 13 hours ago
Select American Airlines flight, departing Wed, May 21 from Baltimore to Charleston, returning Fri, May 23, priced at $179 found 13 hours ago
Southwest Airlines
Fri, May 30 - Mon, Jun 2
BWI
Baltimore
CHS
Charleston
$186 Roundtrip, found 2 hours ago
$186
Roundtrip
found 2 hours ago
Select Southwest Airlines flight, departing Fri, May 30 from Baltimore to Charleston, returning Mon, Jun 2, priced at $186 found 2 hours ago
Delta
Fri, May 30 - Mon, Jun 2
BWI
Baltimore
CHS
Charleston
$196 Roundtrip, found 2 hours ago
$196
Roundtrip
found 2 hours ago
Select Delta flight, departing Fri, May 30 from Baltimore to Charleston, returning Mon, Jun 2, priced at $196 found 2 hours ago
United
Fri, May 30 - Tue, Jun 3
BWI
Baltimore
CHS
Charleston
$632 Roundtrip, found 1 hour ago
$632
Roundtrip
found 1 hour ago
Select United flight, departing Fri, May 30 from Baltimore to Charleston, returning Tue, Jun 3, priced at $632 found 1 hour ago
Flights from Baltimore (BWI) to Charleston (CHS)
Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Charleston Intl.
Airlines serving
American Airlines, Delta, Southwest Airlines, Spirit Airlines, United
Roundtrip price
$110
Distance
473 mi

Baltimore to Charleston Flights

The cheapest times to fly from Baltimore 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 Baltimore to Charleston are during the month of May. You can find some of the cheapest flights from Baltimore to Charleston with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Baltimore to Charleston

Sunday is one of the best days to book for cheap flights from Baltimore 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 Baltimore 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 Baltimore to Charleston in 2025. You can also book with separate airlines for your outbound and return journeys, from $55 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 Baltimore 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 Baltimore 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 Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Charleston Intl. Airport (CHS) cost?
Cheap round-trip flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Charleston Intl. Airport (CHS) start at $140. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Spirit Airlines flight leaving BWI on May 19 2025 and touching down at CHS. The price was last updated on April 24 2025 and has not changed since.
What is the cheapest month to fly from BWI to CHS?
The cheapest flights from BWI 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.
Which airlines fly direct from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Charleston Intl. Airport (CHS)?
When heading out of Baltimore Washington Intl. Thurgood Marshall Airport (BWI), you can catch a nonstop flight to Charleston Intl. Airport (CHS) with Southwest Airlines.
What is the cheapest airline that flies from BWI to CHS?
With tickets starting at $70 for a one-way flight from BWI to CHS, Spirit Airlines is currently the cheapest airline for this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from BWI on June 9 2025. Prices were last updated on April 24 2025 and have not changed since.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Charleston Intl. Airport (CHS)?
With an average of 2 nonstop flights that operate from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Charleston Intl. Airport (CHS) daily, you’ll be soaring through the skies in no time.
What are the most popular departure times for flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Charleston Intl. Airport (CHS)?
More passengers fly between BWI and CHS at 8 AM than at any other point in the day. Looking to skip the crowds? Pick a flight outside the busiest times and you’re likely to save on your fare as well.
What day of the week has the most flights from BWI to CHS?
Travel on a Friday if you’re looking for the best choice of flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Charleston Intl. Airport (CHS).
What is the earliest flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Charleston Intl. Airport (CHS)?
The earliest flight jetting off from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) is at around 8:30AM UTC-5. Catch this flight and you’ll arrive at Charleston Intl. Airport (CHS) at approximately 10:25AM UTC-5. The total travel time is 1h 55m.
How long does it take to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Charleston Intl. Airport (CHS)?
Flights from BWI to CHS have an average travel time of 1 hour and 46 minutes. The total distance between the two airports is 470 mi.
What is the best time to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Charleston Intl. Airport (CHS)?
To avoid potential delays on the Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Charleston Intl. Airport (CHS) route, aim to fly before 3 PM. Later departures have a 22% higher chance of cancellation.**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.
What airports do you fly into for Charleston from Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
If you’re boarding a direct flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Charleston, Charleston Intl. Airport (CHS) is the only airport you can land at.
Is it cheaper to buy a plane ticket from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Charleston Intl. Airport (CHS) last-minute?
Last-minute fares from BWI to CHS are usually more expensive. For the best rates, start looking for flights well in advance. That being said, if you’re flexible with your travel plans, you may find a cheap fare right before your journey.
Is it cheaper to book a BWI to CHS flight and hotel package?
Securing a BWI to CHS flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Choose from our impressive range of hotels and then add car rentals, activities and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Charleston Intl. Airport (CHS)?
It’s usually possible to reschedule or cancel your BWI to CHS flight. However, for bookings made more than 24 hours ago, additional fees may apply. Refer to your airline’s policies in your itinerary to see what changes are possible and if any costs are involved. You’ll also find further details on our Customer Service portal.

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*Available to One Key members.