The flight distance from Hartsfield - Jackson Atlanta International Airport (ATL) in Atlanta, United States to The Florida Keys Marathon International Airport (MTH) in Marathon, United States is 1,043 kilometers (648 miles / 563 nautical miles). The estimated flight time for this route is approximately 2h, flying south southeast at a heading of 161°.

This is a short-haul route typically served by narrow-body aircraft such as the Boeing 737 or Airbus A320 family. In-flight service is usually limited to drinks and light snacks.

This is a domestic route within United States. Both airports operate in the same country, which may simplify travel requirements and documentation.

Time zone information: When it's 01:46 in Atlanta, it's 01:46 in Marathon.

There is a significant elevation difference of 1,021 feet between the two airports. The Florida Keys Marathon International Airport sits lower than Hartsfield - Jackson Atlanta International Airport.

The return flight from Marathon (MTH) to Atlanta (ATL) follows a heading of 342° (north northwest). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Hartsfield - Jackson Atlanta International Airport (ATL) and The Florida Keys Marathon International Airport (MTH) detail pages, or use our flight duration calculator to compare other routes.