Nonstop flight route between São Tomé, São Tomé and Príncipe and Portland, Maine, United States:

About this route:

A direct, nonstop flight between São Tomé International Airport (TMS), São Tomé, São Tomé and Príncipe and Portland International Jetport (PWM), Portland, Maine, United States would travel a Great Circle distance of 5,554 miles (or 8,938 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 São Tomé International Airport and Portland International Jetport, 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 São Tomé International Airport and Portland International Jetport. 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 São Tomé International Airport (TMS):

• Because of São Tomé International Airport's relatively low elevation of 33 feet, planes can take off or land at São Tomé 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.
• São Tomé International Airport (TMS) currently has only 1 runway.
• The furthest airport from São Tomé International Airport (TMS) is Canton Island Airport (CIS), which is nearly antipodal to São Tomé International Airport (meaning São Tomé International Airport is almost on the exact opposite side of the Earth from Canton Island Airport), and is located 12,239 miles (19,696 kilometers) away in Canton Island, Kiribati.
• In addition to being known as "São Tomé International Airport", another name for TMS is "Aeroporto Internacional de São Tomé".
• The closest airport to São Tomé International Airport (TMS) is Libreville Leon M'ba International Airport (LBV), which is located 187 miles (300 kilometers) E of TMS.

Facts about Portland International Jetport (PWM):

• Portland International Jetport (PWM) has 2 runways.
• In 1980 the passenger terminal expanded to the east with the addition of two baggage carousels.
• In 1982 PWM got its first nonstop beyond New York, when Delta tried a 727 to Cincinnati for a year or so.
• In 2004 Runway 11/29 was lengthened to 7,200 feet.
• Because of Portland International Jetport's relatively low elevation of 76 feet, planes can take off or land at Portland International Jetport 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.
• That year regional Air New England began service in Portland, competing with Northeast Airlines intrastate and between Portland and Boston.
• The furthest airport from Portland International Jetport (PWM) is Margaret River Airport (MGV), which is located 11,705 miles (18,838 kilometers) away in Margaret River, Western Australia, Australia.
• In 2010 Starlink Aviation ended its service to Yarmouth and Halifax, Nova Scotia, citing the loss of a Canadian subsidy.
• The closest airport to Portland International Jetport (PWM) is Naval Air Station Brunswick (NHZ), which is located 25 miles (40 kilometers) NE of PWM.