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

Popular airlines from Miami, FL (OPF-Opa Locka Executive) to Marathon, FL (MTH-Florida Keys Marathon)

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Frequently asked questions

How much does a flight from Opa Locka Executive Airport (OPF) to Marathon, FL (MTH-Florida Keys Marathon) cost?
Lock in a cheap one-way flight or cheap return flight from Opa Locka Executive Airport (OPF) 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 Opa Locka Executive Airport (OPF) to Marathon, FL (MTH-Florida Keys Marathon)?
Flying in is a good way to save, as it's the cheapest month for flights between OPF and MTH. You'll usually find the lowest fares during off-peak months.
What is the cheapest airline that flies from Opa Locka Executive Airport (OPF) to Marathon, FL (MTH-Florida Keys Marathon)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest OPF to MTH flight.
How many flights per day from Opa Locka Executive Airport (OPF) to Marathon, FL (MTH-Florida Keys Marathon)?
Nonstop flights from Opa Locka Executive Airport (OPF) 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 filter tool. Enter your travel details and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from OPF to MTH?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Opa Locka Executive Airport (OPF) to Marathon, FL (MTH-Florida Keys Marathon)?
To land at Marathon, FL (MTH-Florida Keys Marathon) on time, pick a flight that takes off from Opa Locka Executive Airport (OPF) 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 Opa Locka Executive Airport (OPF) to Marathon, FL (MTH-Florida Keys Marathon) last-minute?
Last-minute fares from OPF to MTH are typically more expensive. To secure the best prices, start searching for flights ahead of time. That being said, if you're flexible with your travel plans, you may land a cheap fare right before your trip.
Can I cancel or change the date of my flight from Opa Locka Executive Airport (OPF) to Marathon, FL (MTH-Florida Keys Marathon)?
If you reserved your OPF to MTH flight within the last 24 hours, you may be able to modify or cancel it without any 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, visit our Customer Service portal for further details.

Travel information

Origin airport
Opa Locka Executive
Destination airport
Florida Keys Marathon
Distance
95 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 2026. 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

Explore a world of travel with Expedia

*Available to One Key members.