Cheap flights from San Diego to Charleston from $103

The cheapest month to fly to Charleston from San Diego is in January. Flight prices, which tend to average around $362, are often lower during this time because this is during the off-season. The month of October is another great option to travel to Charleston, with average flight prices from San Diego averaging around $386.

You are more likely to see cheaper flights to Charleston from San Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to Charleston for around $452 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Charleston from San Diego for as low as $368 on momondo.

You could potentially save up to 16% on your flight if you consider stops on a San Diego to Charleston flight.

As of August 2026, prices for San Diego to Charleston flights are approximately 122% more expensive when compared to flights at the same time last year.

Southwest, United Airlines, and Delta are the most popular carriers operating from San Diego to Charleston

American Airlines, Southwest and Delta are the top three most popular airlines that fly to Charleston from San Diego according to our data. American Airlines is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Charleston. Keep in mind that there are 5 different airlines that fly to Charleston on a routine basis, so you have a few additional options to choose from.

Atlanta (ATL) was the most common stop: 63% of momondo users choosing 1-stop flights on this route connected there.

Flights via Denver (DEN) offer the lowest average round-trip price of $313.

Flights connecting via Dallas (DAL) have the shortest average one-way travel time: 6h 20m.

Dallas (DAL) has the shortest average layover time for this route: 1h 03m.