$102 Cheap Flights from St. Louis (STL) to Charleston (CHS)

You can find cheap one-way flights from $102 and cheap return flights $175 St. Louis, MO (STL-Lambert-St. Louis Intl.) to Charleston, SC (CHS-Charleston Intl.) with Expedia. One-way flights generally range between $164 and $594, and roundtrip flights usually range from $329 to $1008. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when St. Louis, MO (STL-Lambert-St. Louis Intl.) to Charleston, SC (CHS-Charleston Intl.) ticket fares go up or down.

*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.

September is the cheapest month to fly from St. Louis, MO (STL) to Charleston, SC (CHS), with average round-trip fares around $307. This price is about 22% lower than the average throughout the year, as travel demand typically drops after the summer. Other budget-friendly months to consider are February and October.

*Averages based on flights available on Expedia in the last year.

Enter STL to CHS and your travel dates, then apply the 'Nonstop' filter to see only direct flights.

Southwest Airlines is one of the cheapest airlines offering nonstop flights from St. Louis, MO (STL) to Charleston, SC (CHS), with round-trip tickets starting from around $326.48. This means you can enjoy a direct flight at an affordable price. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.

*Prices based on flights available on Expedia in the last year.

To find a cheap flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Charleston, SC (CHS-Charleston Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.

The best airline to fly with from St. Louis, MO (STL) to Charleston, SC (CHS) will differ from traveler to traveler. If you like to fly early, WN offers early morning flights. If price is the most important factor, WN typically offers the lowest fares. American Airlines offers the most daily flights from STL to CHS, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.

When planning your flight from St. Louis, MO (STL) to Charleston, SC (CHS), consider traveling in September or February. September is the cheapest month with return flights averaging around $307, while February is also a good option. These months strike a balance between affordability and pleasant travel conditions.

*Prices based on flights available on Expedia in the last year.

You can find approximately 1 nonstop flights per day from Lambert-St. Louis Intl. (STL) to Charleston Intl. (CHS). For more options, look at flights that include layovers.

The earliest flight from Lambert-St. Louis International Airport (STL) to Charleston International Airport (CHS) usually leaves at around 5:00 AM, operated by American Airlines. This early flight allows you to make the most of your day in Charleston. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.

The most popular departure times for flights from Lambert-St. Louis International Airport (STL) to Charleston International Airport (CHS) are in the early morning, from 6am to 9am. About 39% of passengers prefer this time window. Many major carriers, including American Airlines, Delta, and United Airlines, offer flights during this window. This timing is favored because it lets you maximize your time in Charleston upon arrival.

Direct flights from STL to CHS usually take about 2 hours, traveling roughly 706 miles. If you opt for a connecting flight, expect to add around 3 hours 50 minutes to your journey. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.

You can fly first class between STL and CHS. First class cabins are available on:

• American Airlines
• Delta Air Lines
• United Airlines
• Spirit Airlines

It's easy to earn miles on a St. Louis, MO (STL-Lambert-St. Louis Intl.) to Charleston, SC (CHS-Charleston Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.

*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.

When traveling from Lambert-St. Louis Intl. (STL) to Charleston, you can fly into Charleston Intl. (CHS) and Yeager (CRW). Some flights may connect through major hubs like O'Hare Intl. (ORD), Washington Dulles Intl. (IAD), Tulsa Intl. (TUL) before reaching Charleston. Compare routes and airports on Expedia to find the best flight options for your travel plans.

Typically, booking a last minute flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Charleston, SC (CHS-Charleston Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.

Securing a St. Louis, MO (STL-Lambert-St. Louis Intl.) to Charleston, SC (CHS-Charleston Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.

If you booked your St. Louis, MO (STL-Lambert-St. Louis Intl.) to Charleston, SC (CHS-Charleston Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.