Nonstop flight route between Portland, Oregon, United States and Marathon, Florida, United States:
Departure Airport:

Arrival Airport:

Distance from PDX to MTH:
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- About this route
- PDX Airport Information
- MTH Airport Information
- Facts about PDX
- Facts about MTH
- Map of Nearest Airports to PDX
- List of Nearest Airports to PDX
- Map of Furthest Airports from PDX
- List of Furthest Airports from PDX
- Map of Nearest Airports to MTH
- List of Nearest Airports to MTH
- Map of Furthest Airports from MTH
- List of Furthest Airports from MTH
About this route:
A direct, nonstop flight between Portland International Airport (PDX), Portland, Oregon, United States and Florida Keys Marathon Airport (MTH), Marathon, Florida, United States would travel a Great Circle distance of 2,711 miles (or 4,363 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 Portland International Airport and Florida Keys Marathon 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 Portland International Airport and Florida Keys Marathon Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | PDX / KPDX |
Airport Name: | Portland International Airport |
Location: | Portland, Oregon, United States |
GPS Coordinates: | 45°35'18"N by 122°35'50"W |
Area Served: | Portland metropolitan area |
Airport Type: | Public |
Elevation: | 30 feet (9 meters) |
# of Runways: | 3 |
View all routes: | Routes from PDX |
More Information: | PDX Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | MTH / KMTH |
Airport Name: | Florida Keys Marathon Airport |
Location: | Marathon, Florida, United States |
GPS Coordinates: | 24°43'33"N by 81°3'5"W |
Operator/Owner: | Monroe County |
Airport Type: | Public |
Elevation: | 7 feet (2 meters) |
# of Runways: | 1 |
View all routes: | Routes from MTH |
More Information: | MTH Maps & Info |
Facts about Portland International Airport (PDX):
- PDX has a shopping mall behind its ticketing counters, with all shops and restaurants open every day.
- Portland International Airport handled 1,502,956 passengers last year.
- In 1966 PDX had nonstop flights to SLC, DEN, ORD and no other cities farther east than Boise.
- The furthest airport from Portland International Airport (PDX) is Tôlanaro Airport (FTU), which is located 10,903 miles (17,546 kilometers) away in Tôlanaro, Madagascar.
- The "super airport" had a terminal on the north side, off Marine Drive, and five runways.
- The closest airport to Portland International Airport (PDX) is Portland-Troutdale Airport (TTD), which is located only 10 miles (16 kilometers) ESE of PDX.
- In 2013, a Travel+Leisure magazine readers' poll named PDX the best US airport, based on its on-time record, dining, shopping, and mass transportation into the city.
- Because of Portland International Airport's relatively low elevation of 30 feet, planes can take off or land at Portland 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.
- Portland International Airport (PDX) has 3 runways.
Facts about Florida Keys Marathon Airport (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.
- 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.
- The closest airport to Florida Keys Marathon Airport (MTH) is NAS Key West (NQX), which is located 41 miles (67 kilometers) WSW of MTH.
- Florida Keys Marathon Airport (MTH) currently has only 1 runway.
- The Florida Keys Marathon Airport is a public airport located along the Overseas Highway in Marathon, in Monroe County, Florida, United States.
- In mid summer of 2007, Delta announced it would end service to Marathon Airport due to low demand.