Cheap Flights from Miami (MIA) to Marathon (MTH)

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

Frequently asked questions

How much does a flight from Miami Intl. Airport (MIA) to Marathon, FL (MTH-Florida Keys Marathon) cost?
Snag a cheap one-way flight or cheap return flight from Miami Intl. Airport (MIA) 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 Miami Intl. Airport (MIA) to Marathon, FL (MTH-Florida Keys Marathon)?
The cheapest month to fly from MIA to MTH is , when there's less demand. Off-peak season is generally when better flight deals are available between these airports.
What is the cheapest airline that flies from Miami Intl. Airport (MIA) to Marathon, FL (MTH-Florida Keys Marathon)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest MIA to MTH flight.
How many flights per day from Miami Intl. Airport (MIA) to Marathon, FL (MTH-Florida Keys Marathon)?
Direct flights from Miami Intl. Airport (MIA) to Marathon, FL (MTH-Florida Keys Marathon) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from MIA to MTH?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can vary depending on various factors, such as 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 Miami Intl. Airport (MIA) to Marathon, FL (MTH-Florida Keys Marathon)?
To avoid possible delays on the Miami Intl. Airport (MIA) to Marathon, FL (MTH-Florida Keys Marathon) route, travel before 3 PM. Departures after this time 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 Miami Intl. Airport (MIA) to Marathon, FL (MTH-Florida Keys Marathon) last-minute?
Waiting until just before your departure to book a flight from MIA to MTH often results in higher prices. Although you may find some last-minute discounts, they aren't always guaranteed. Allow some flexibility in your schedule to maximize your chances of snagging a bargain.
Can I cancel or change the date of my flight from Miami Intl. Airport (MIA) to Marathon, FL (MTH-Florida Keys Marathon)?
In most instances, you're able to cancel or reschedule your MIA to MTH flight. However, there may be additional fees, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline's rules and fees on flight changes, or if you want further information, head to our Customer Service portal.

Travel information

Origin airport
Miami Intl.
Destination airport
Florida Keys Marathon
Distance
88 mi

Book with confidence

Miami to Marathon Flights

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

 

The best time to book a flight from Miami to Marathon

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

 

Miami to Marathon Flights

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*Available to One Key members.