Cheap Flights from Marathon (MTH) to Greenville (GSP)

Popular airlines from Marathon, FL (MTH-Florida Keys Marathon) to Greenville-Spartanburg Intl. Airport (GSP)

Frequently asked questions

How much does a flight from Marathon, FL (MTH-Florida Keys Marathon) to Greenville-Spartanburg Intl. Airport (GSP) cost?
Grab a cheap one-way flight or cheap return flight from Marathon, FL (MTH-Florida Keys Marathon) to Greenville-Spartanburg Intl. Airport (GSP) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Marathon, FL (MTH-Florida Keys Marathon) to Greenville-Spartanburg Intl. Airport (GSP)?
The cheapest month to fly from MTH to GSP is , when demand is low. Off-peak season is typically when airlines offer better prices between these airports.
What is the cheapest airline that flies from Marathon, FL (MTH-Florida Keys Marathon) to Greenville-Spartanburg Intl. Airport (GSP)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest MTH to GSP flight.
How many flights per day from Marathon, FL (MTH-Florida Keys Marathon) to Greenville-Spartanburg Intl. Airport (GSP)?
You'll need to catch a flight with a layover when traveling from Marathon, FL (MTH-Florida Keys Marathon) to Greenville-Spartanburg Intl. Airport (GSP). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to discover an option that works for you.
What day of the week has the most flights from MTH to GSP?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can vary depending on a range of factors, such as the carrier 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 Marathon, FL (MTH-Florida Keys Marathon) to Greenville-Spartanburg Intl. Airport (GSP)?
To avoid possible delays on the Marathon, FL (MTH-Florida Keys Marathon) to Greenville-Spartanburg Intl. Airport (GSP) route, aim to fly before 3 PM. Flights after this time have a 22% higher chance of being 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 Marathon, FL (MTH-Florida Keys Marathon) to Greenville-Spartanburg Intl. Airport (GSP) last-minute?
Booking your ticket from MTH to GSP just before your journey is generally more expensive. However, if you're flexible with your itinerary, you could land a cheap last-minute fare.
Is it cheaper to book a MTH to GSP flight and hotel package?
Securing a MTH to GSP flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Pick from our impressive range of accommodations and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Marathon, FL (MTH-Florida Keys Marathon) to Greenville-Spartanburg Intl. Airport (GSP)?
In most instances, you can cancel or reschedule your MTH to GSP flight. However, there may be additional charges, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's fees and policies on flight changes, or if you want further information, go to our Customer Service portal.

Travel information

Origin airport
Florida Keys Marathon
Destination airport
Greenville-Spartanburg Intl.
Distance
705 mi

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Marathon to Greenville Flights

The cheapest times to fly from Marathon to Greenville

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

 

The best time to book a flight from Marathon to Greenville

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

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 Marathon to Greenville 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 Marathon to Greenville 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 Marathon to Greenville 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.

 

Marathon to Greenville Flights

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*Available to One Key members.