The flight distance from Harry Reid International Airport (LAS) in Las Vegas, United States to The Florida Keys Marathon International Airport (MTH) in Marathon, United States is 3,483 kilometers (2,164 miles / 1,881 nautical miles). The estimated flight time for this route is approximately 5h, flying east southeast at a heading of 102°.

This is a medium-haul route that may be operated by either narrow-body or wide-body aircraft depending on demand. Passengers can expect a meal service on most carriers.

This is a domestic route within United States. Both airports operate in the same country, which may simplify travel requirements and documentation. Despite being a domestic route, there is a 3-hour time difference between the two cities.

Time zone information: When it's 08:35 in Las Vegas, it's 11:35 in Marathon. The 3-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

There is a significant elevation difference of 2,176 feet between the two airports. The Florida Keys Marathon International Airport sits lower than Harry Reid International Airport.

The return flight from Marathon (MTH) to Las Vegas (LAS) follows a heading of 299° (west 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 Harry Reid International Airport (LAS) and The Florida Keys Marathon International Airport (MTH) detail pages, or use our flight duration calculator to compare other routes.