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

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

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Frequently asked questions

How much does a flight from Key West Intl. Airport (EYW) to Marathon, FL (MTH-Florida Keys Marathon) cost?
Grab a cheap one-way flight or cheap return flight from Key West Intl. Airport (EYW) to Marathon, FL (MTH-Florida Keys Marathon) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Key West Intl. Airport (EYW) to Marathon, FL (MTH-Florida Keys Marathon)?
is the most affordable month to fly from EYW to MTH. Traveling during quieter months is often the key to finding better fares.
What is the cheapest airline that flies from Key West Intl. Airport (EYW) to Marathon, FL (MTH-Florida Keys Marathon)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find the carrier with the cheapest EYW to MTH flight.
How many flights per day from Key West Intl. Airport (EYW) to Marathon, FL (MTH-Florida Keys Marathon)?
Nonstop flights from Key West Intl. Airport (EYW) 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 Expedia's filters. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from EYW to MTH?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can vary based on a range 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 Key West Intl. Airport (EYW) to Marathon, FL (MTH-Florida Keys Marathon)?
To avoid possible delays on the Key West Intl. Airport (EYW) to Marathon, FL (MTH-Florida Keys Marathon) route, fly before 3 PM. Departures after this hour have a 22% higher chance of cancellation.**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 Key West Intl. Airport (EYW) to Marathon, FL (MTH-Florida Keys Marathon) last-minute?
Waiting until right before your break to book a flight from EYW to MTH generally means paying more. While you might find some last-minute offers, they're not always guaranteed. Be flexible with your itinerary for a better chance of landing a bargain.
Can I cancel or change the date of my flight from Key West Intl. Airport (EYW) to Marathon, FL (MTH-Florida Keys Marathon)?
It's usually possible to reschedule or cancel your EYW to MTH flight. However, if it's been more than 24 hours since booking, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

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

Book with confidence

Key West to Marathon Flights

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

 

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

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

 

Key West to Marathon Flights

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*Available to One Key members.