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

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

Find available prices by choosing your travel dates.
Flights from Marathon (MTH) to Miami (MIA)
Origin airport
Florida Keys Marathon
Destination airport
Miami Intl.
Distance
88 mi

Marathon to Miami Flights

The cheapest times to fly from Marathon to Miami

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

 

The best time to book a flight from Marathon to Miami

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

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 Miami 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 Miami 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 Miami 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.

 

Frequently asked questions

How much does a flight from Marathon, FL (MTH-Florida Keys Marathon) to Miami Intl. Airport (MIA) cost?
Discover the latest flight deals from MTH to MIA by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from MTH to MIA?
The cheapest flights from MTH to MIA are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Marathon, FL (MTH-Florida Keys Marathon) to Miami Intl. Airport (MIA)?
There are no direct flights from Marathon, FL (MTH-Florida Keys Marathon) to Miami Intl. Airport (MIA). However, you’ll find other airports that have nonstop flights. Start your journey at Key West Intl. Airport (EYW) and travel straight to Miami without layovers.
What is the cheapest airline that flies from MTH to MIA?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from MTH to MIA. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Marathon, FL (MTH-Florida Keys Marathon) to Miami Intl. Airport (MIA)?
Direct flights from Marathon, FL (MTH-Florida Keys Marathon) to Miami Intl. Airport (MIA) aren’t available daily, so you’ll need to take a flight with a layover. Explore your options with Expedia’s filter tool. Enter your dates and click on either “1 Stop” or “2+ Stops.”
What day of the week has the most flights from MTH to MIA?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can change depending 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 Marathon, FL (MTH-Florida Keys Marathon) to Miami Intl. Airport (MIA)?
To reach Miami Intl. Airport (MIA) without delays, opt for a flight that leaves from Marathon, FL (MTH-Florida Keys Marathon) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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 Miami Intl. Airport (MIA) last-minute?
Booking your ticket from MTH to MIA right before your getaway is typically more expensive. But if there’s some wiggle room with your travel times and dates, you could grab a cheap last-minute fare.
Is it cheaper to book a MTH to MIA flight and hotel package?
You’ll typically save money by securing a MTH to MIA flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it’s simple to manage it all in one convenient place. After choosing your ideal flights and accommodations, you can add extras such as activities, car rentals and tours.
Can I cancel or change the date of my flight from Marathon, FL (MTH-Florida Keys Marathon) to Miami Intl. Airport (MIA)?
In most instances, you’re able to cancel or reschedule your MTH to MIA 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 rules on flight changes, or if you need further details, visit our Customer Service portal.

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*Available to One Key members.