Nonstop flight route between Marathon, Florida, United States and SeaTac (near Seattle and Tacoma), Washington, United States:

About this route:

A direct, nonstop flight between Florida Keys Marathon Airport (MTH), Marathon, Florida, United States and Seattle–Tacoma International Airport (SEA), SeaTac (near Seattle and Tacoma), Washington, United States would travel a Great Circle distance of 2,740 miles (or 4,409 kilometers).

A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the large distance between Florida Keys Marathon Airport and Seattle–Tacoma International Airport, the route shown on this map most likely appears curved because of this reason.

Try it at home! Get a globe and tightly lay a string between Florida Keys Marathon Airport and Seattle–Tacoma International Airport. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about Florida Keys Marathon Airport (MTH):

• However on December 1, 2006, the TSA bowed to the effective lobbying efforts of local government, congressional and business officials when it announced that screeners would be provided at the airport no later than February 15, 2007, even if it meant using a contractor.
• The furthest airport from Florida Keys Marathon Airport (MTH) is Cocos (Keeling) Island Airport (CCK), which is located 11,560 miles (18,603 kilometers) away in Cocos Islands, Australia.
• Florida Keys Marathon Airport (MTH) currently has only 1 runway.
• The closest airport to Florida Keys Marathon Airport (MTH) is NAS Key West (NQX), which is located 41 miles (67 kilometers) WSW of MTH.
• Because of Florida Keys Marathon Airport's relatively low elevation of 7 feet, planes can take off or land at Florida Keys Marathon Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
• Marathon Airport was served by American Eagle Airlines until 2000.

Facts about Seattle–Tacoma International Airport (SEA):

• The furthest airport from Seattle–Tacoma International Airport (SEA) is Tôlanaro Airport (FTU), which is located 10,781 miles (17,350 kilometers) away in Tôlanaro, Madagascar.
• The airport is also served both by the King County Metro bus system and Sound Transit regional express buses.
• In addition to being known as "Seattle–Tacoma International Airport", another name for SEA is "Sea–Tac Airport".
• A new control tower was built beginning in 2001 and opened November 2004, at a cost of $26 million.
• In 2013, the airport served over 34.7 million passengers, making it the 15th-busiest airport in the United States.
• The closest airport to Seattle–Tacoma International Airport (SEA) is Renton Municipal Airport (RNT), which is located only 5 miles (9 kilometers) NE of SEA.
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• Because of Seattle–Tacoma International Airport's relatively low elevation of 433 feet, planes can take off or land at Seattle–Tacoma International Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
• Seattle–Tacoma International Airport (SEA) has 3 runways.
• Seattle–Tacoma International Airport handled 34,776,666 passengers last year.
• The top five carriers at the airport in number of passengers carried in 2012 were Alaska Airlines, Horizon Air, Delta Air Lines, Southwest Airlines, and United Airlines.