Cheap Flights from Marathon (MTH) to Key West (EYW)

Popular airlines from Marathon, FL (MTH-Florida Keys Marathon) to Key West Intl. Airport (EYW)

Frequently asked questions

How much does a flight from Marathon, FL (MTH-Florida Keys Marathon) to Key West Intl. Airport (EYW) cost?
Snag a cheap one-way flight or cheap return flight from Marathon, FL (MTH-Florida Keys Marathon) to Key West Intl. Airport (EYW) 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 Key West Intl. Airport (EYW)?
The cheapest month to fly from MTH to EYW is , when demand is low. Off-peak months are generally when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Marathon, FL (MTH-Florida Keys Marathon) to Key West Intl. Airport (EYW)?
Expedia's filter tool lets you easily compare different airlines, flight durations 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 EYW flight.
How many flights per day from Marathon, FL (MTH-Florida Keys Marathon) to Key West Intl. Airport (EYW)?
You'll need to take a flight with a layover if you're traveling from Marathon, FL (MTH-Florida Keys Marathon) to Key West Intl. Airport (EYW). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from MTH to EYW?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can change depending on a number of factors, including the time of year and airline.*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 Key West Intl. Airport (EYW)?
To land at Key West Intl. Airport (EYW) on time, choose a flight that leaves Marathon, FL (MTH-Florida Keys Marathon) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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 Key West Intl. Airport (EYW) last-minute?
Holding off until right before your break to book a ticket from MTH to EYW generally means paying more. While you might find some last-minute discounts, they aren't always guaranteed. Keep your travel plans flexible for a better chance of getting a bargain.
Is it cheaper to book a MTH to EYW flight and hotel package?
You'll generally save money by booking a MTH to EYW flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. After selecting your preferred accommodations and flights, you can add extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Marathon, FL (MTH-Florida Keys Marathon) to Key West Intl. Airport (EYW)?
If you reserved your MTH to EYW flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Florida Keys Marathon
Destination airport
Key West Intl.
Distance
45 mi

Book with confidence

Marathon to Key West Flights

The cheapest times to fly from Marathon to Key West

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

 

The best time to book a flight from Marathon to Key West

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

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 Key West 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 Key West 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 Key West 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 Key West Flights

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*Available to One Key members.