Cheap Flights from St. Petersburg (PIE) to Marathon (MTH)

Popular airlines from St. Petersburg-Clearwater Intl. Airport (PIE) to Marathon, FL (MTH-Florida Keys Marathon)

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Find available prices by choosing your travel dates.
Flights from St. Petersburg (PIE) to Marathon (MTH)
Origin airport
St. Petersburg-Clearwater Intl.
Destination airport
Florida Keys Marathon
Distance
242 mi

St. Petersburg to Marathon Flights

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

 

The best time to book a flight from St. Petersburg to Marathon

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

 

Frequently asked questions

Is it cheaper to buy a plane ticket from PIE to MTH last minute?
Booking your journey from PIE to MTH at the last minute could save you a tidy sum if you’re lucky enough to find a real bargain. However, tickets usually don’t come down in price closer to the departure date. If you procrastinate, flights could also be booked solid or the best seats taken (because who wants the middle seat?). If you don’t want to risk it, book well ahead of the date you want to leave. In fact, some of the best deals are available on Expedia up to a year in advance. If your preferred carrier hasn’t released its airfares yet, check back regularly as offers are updated on Expedia constantly.
Can I change the date of my flight from St. Petersburg-Clearwater Intl. Airport (PIE) to MTH?
It’s a cinch to make changes to your PIE to MTH trip yourself. Just go to the Expedia Trips portal and hit “change flight.” Search for new flights and secure the one that works best with your plans. You’ll get an estimate of the extra charges, if applicable. Alternatively, use our Customer Service portal to chat to our Virtual Agent and quickly get answers to all your questions.

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