Cheap Flights from Jacksonville (JAX) to Marathon (MTH)

Popular airlines from Jacksonville International Airport (JAX) to Marathon, FL (MTH-Florida Keys Marathon)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

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

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Frequently asked questions

How much is a flight from Jacksonville Intl. Airport to MTH?
Round-trip tickets between Jacksonville Intl. Airport and MTH start from . This price is based on fares quoted within the last 7 days on Expedia for flights departing within the next year — book ASAP to avoid missing out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Jacksonville Intl. Airport (JAX) to MTH?
The majority of flights can be cancelled online, but each air carrier has its own terms and conditions. If you do decide to cancel your flight, visit our Customer Service Portal and follow the instructions.
How do I find cheap flights from JAX to MTH that have flexible change policies?
Many airlines offer the option to reschedule your flight at no extra charge. All you pay is the fare difference. When searching for JAX to MTH flights, you'll see a "No change fees" box for you to pick.
How far is the flight from Jacksonville Intl. Airport (JAX) to MTH?
That new movie you've been eager to see will have to wait — the flight distance between Jacksonville Intl. Airport (JAX) and MTH (MTH) is only 650 kilometres. The captain will be instructing you to buckle up for landing before you know it.
Which airlines fly direct from Jacksonville Intl. Airport to MTH?
Direct flights aren't available, so you'll have to make at least one stop between JAX and MTH. Make the most of the layover time to stretch your legs and enjoy some personal space.
Are Jacksonville Intl. Airport to MTH flight tickets cheaper when they're purchased at the last minute?
Late planners can sometimes find a bargain, with some super cheap fares from JAX to MTH arising a few weeks before the departure date. If you'd rather plan ahead, Expedia compares and updates all the best flight deals continuously — as early as 12 months in advance in some cases. It depends on the carrier though, as not all airlines quote prices that far in advance.

Travel information

Origin airport
Jacksonville Intl.
Destination airport
Florida Keys Marathon
Distance
640 km

Explore a world of travel with Expedia

*Available to Expedia members.