$454 Cheap Flights from Charleston (CHS) to Sofia (SOF)

View $454 flight on Thu, Oct 2, 2025Opens in a new window

Popular airlines from Charleston Intl. Airport (CHS) to Sofia Airport (SOF)

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Cheap Flights from Charleston to Sofia (CHS-SOF)

Prices were available within the past 7 days and start at $454 for one-way flights and $616 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Oct 14 - Wed, Nov 5
CHS
Charleston
SOF
Sofia
$616 Roundtrip, found 1 day ago
$616
Roundtrip
found 1 day ago
Select United flight, departing Tue, Oct 14 from Charleston to Sofia, returning Wed, Nov 5, priced at $616 found 1 day ago
United
Wed, Aug 6 - Wed, Nov 5
CHS
Charleston
SOF
Sofia
$620 Roundtrip, found 4 days ago
$620
Roundtrip
found 4 days ago
Select United flight, departing Wed, Aug 6 from Charleston to Sofia, returning Wed, Nov 5, priced at $620 found 4 days ago
Air Canada
Sun, Aug 3 - Fri, Nov 7
CHS
Charleston
SOF
Sofia
$622 Roundtrip, found 4 days ago
$622
Roundtrip
found 4 days ago
Select Air Canada flight, departing Sun, Aug 3 from Charleston to Sofia, returning Fri, Nov 7, priced at $622 found 4 days ago
United
Wed, Aug 6 - Wed, Nov 5
CHS
Charleston
SOF
Sofia
$626 Roundtrip, found 4 days ago
$626
Roundtrip
found 4 days ago
Select United flight, departing Wed, Aug 6 from Charleston to Sofia, returning Wed, Nov 5, priced at $626 found 4 days ago
United
Wed, Aug 6 - Wed, Nov 5
CHS
Charleston
SOF
Sofia
$630 Roundtrip, found 4 days ago
$630
Roundtrip
found 4 days ago
Select United flight, departing Wed, Aug 6 from Charleston to Sofia, returning Wed, Nov 5, priced at $630 found 4 days ago
United
Sun, Oct 19 - Wed, Nov 5
CHS
Charleston
SOF
Sofia
$632 Roundtrip, found 1 day ago
$632
Roundtrip
found 1 day ago
Select United flight, departing Sun, Oct 19 from Charleston to Sofia, returning Wed, Nov 5, priced at $632 found 1 day ago
Lufthansa
Wed, Aug 6 - Wed, Nov 5
CHS
Charleston
SOF
Sofia
$653 Roundtrip, found 4 days ago
$653
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Wed, Aug 6 from Charleston to Sofia, returning Wed, Nov 5, priced at $653 found 4 days ago
United
Sun, Aug 10 - Tue, Aug 26
CHS
Charleston
SOF
Sofia
$657 Roundtrip, found 6 days ago
$657
Roundtrip
found 6 days ago
Select United flight, departing Sun, Aug 10 from Charleston to Sofia, returning Tue, Aug 26, priced at $657 found 6 days ago
Air France
Wed, Aug 6 - Wed, Nov 5
CHS
Charleston
SOF
Sofia
$682 Roundtrip, found 4 days ago
$682
Roundtrip
found 4 days ago
Select Air France flight, departing Wed, Aug 6 from Charleston to Sofia, returning Wed, Nov 5, priced at $682 found 4 days ago
British Airways
Thu, Oct 16 - Mon, Nov 3
CHS
Charleston
SOF
Sofia
$692 Roundtrip, found 1 day ago
$692
Roundtrip
found 1 day ago
Select British Airways flight, departing Thu, Oct 16 from Charleston to Sofia, returning Mon, Nov 3, priced at $692 found 1 day ago

Alternative airports near Sofia

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

Select flight to Sofia Airport SOF. Cheapest and Closest option available. Average driving time to city center is 11 minutes. Flights from $1,062
SOF
Sofia Airport
CheapestClosest
Average driving time to city center11 min
Flights from $1,062
Flights from Charleston (CHS) to Sofia (SOF)
Origin airport
Charleston Intl.
Destination airport
Sofia
Airlines serving
Air Canada, Air France, Austrian Airlines, British Airways, JetBlue Airways, Lufthansa, Turkish Airlines, United
Roundtrip price
$615
Distance
5321 mi

Charleston to Sofia Flights

The cheapest times to fly from Charleston to Sofia

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

 

The best time to book a flight from Charleston to Sofia

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

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 Sofia in 2025. You can also book with separate airlines for your outbound and return journeys, from $454 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 Sofia 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 Sofia 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 Sofia Airport (SOF) cost?
Discover the latest flight deals from CHS to SOF 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 CHS to SOF?
The cheapest flights from CHS to SOF 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 CHS to SOF?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from CHS to SOF. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Charleston Intl. Airport (CHS) to Sofia Airport (SOF)?
You'll have to book a flight with a layover if you're traveling from Charleston Intl. Airport (CHS) to Sofia Airport (SOF). There are no daily direct flights on this route. However, just filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from CHS to SOF?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change 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 Charleston Intl. Airport (CHS) to Sofia Airport (SOF)?
To touch down at Sofia Airport (SOF) without delays, pick a flight that takes off from Charleston Intl. Airport (CHS) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Sofia Airport (SOF) last-minute?
Waiting until right before your break to book a flight from CHS to SOF generally means paying more. While you might find some last-minute offers, there's no guarantee. Be flexible with your travel plans to maximize your chances of snagging a bargain.
Is it cheaper to book a CHS to SOF flight and hotel package?
Compared with arranging hotels and flights separately, booking a CHS to SOF flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one easy place will take the hassle out of travel planning. Simply pick your flights and choose from our wide range of stays, then tailor your trip with other add-ons like tours and car rentals.
Can I cancel or change the date of my flight from Charleston Intl. Airport (CHS) to Sofia Airport (SOF)?
Typically, you can reschedule or cancel your CHS to SOF flight. However, additional fees may apply, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline's rules and fees on flight changes, or if you want more information, head to our Customer Service portal.

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*Available to One Key members.