Cheap Flights from Charleston (CHS) to Marathon (MTH)

Popular airlines from Charleston Intl. Airport (CHS) to Marathon, FL (MTH-Florida Keys Marathon)

Frequently asked questions

How much does a flight from Charleston Intl. Airport (CHS) to Marathon, FL (MTH-Florida Keys Marathon) cost?
Snag a cheap one-way flight or cheap return flight from Charleston Intl. Airport (CHS) to Marathon, FL (MTH-Florida Keys Marathon) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Charleston Intl. Airport (CHS) to Marathon, FL (MTH-Florida Keys Marathon)?
is the most affordable month to fly from CHS to MTH. Planning your trip for the off-season is often the key to scoring lower fares.
What is the cheapest airline that flies from Charleston Intl. Airport (CHS) to Marathon, FL (MTH-Florida Keys Marathon)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll take you from CHS to MTH. Then, sort your results by "Price (lowest to highest)" to snag the best deal available.
How many flights per day from Charleston Intl. Airport (CHS) to Marathon, FL (MTH-Florida Keys Marathon)?
Nonstop flights from Charleston Intl. Airport (CHS) to Marathon, FL (MTH-Florida Keys Marathon) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from CHS to MTH?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can vary depending on a number of factors, including the airline and season.*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 Marathon, FL (MTH-Florida Keys Marathon)?
To avoid potential delays on the Charleston Intl. Airport (CHS) to Marathon, FL (MTH-Florida Keys Marathon) route, fly before 3 PM. Later flights are 22% more likely to be canceled.**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 Marathon, FL (MTH-Florida Keys Marathon) last-minute?
Waiting until just before your departure to book a flight from CHS to MTH often results in higher prices. While it's possible to find some last-minute discounts, there's no guarantee. Be flexible with your itinerary to maximize your chances of snagging a bargain.
Can I cancel or change the date of my flight from Charleston Intl. Airport (CHS) to Marathon, FL (MTH-Florida Keys Marathon)?
You can usually cancel or reschedule your CHS to MTH flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Charleston Intl.
Destination airport
Florida Keys Marathon
Distance
567 mi

Book with confidence

Charleston to Marathon Flights

The cheapest times to fly from Charleston to Marathon

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

 

The best time to book a flight from Charleston to Marathon

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

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 Marathon in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Marathon 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 Marathon 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.

 

Charleston to Marathon Flights

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*Available to One Key members.