Nonstop flight route between Kelso, Washington, United States and Portland, Maine, United States:

About this route:

A direct, nonstop flight between Southwest Washington Regional Airport (KLS), Kelso, Washington, United States and Portland International Jetport (PWM), Portland, Maine, United States would travel a Great Circle distance of 2,533 miles (or 4,076 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 Southwest Washington Regional 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 Southwest Washington Regional 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 Southwest Washington Regional Airport (KLS):

• Southwest Washington Regional Airport (KLS) currently has only 1 runway.
• Because of Southwest Washington Regional Airport's relatively low elevation of 20 feet, planes can take off or land at Southwest Washington Regional 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.
• Southwest Washington Regional Airport covers an area of 110 acres at an elevation of 20 feet above mean sea level.
• The furthest airport from Southwest Washington Regional Airport (KLS) is Tôlanaro Airport (FTU), which is located 10,876 miles (17,503 kilometers) away in Tôlanaro, Madagascar.
• The closest airport to Southwest Washington Regional Airport (KLS) is South Lewis County Airport (TDO), which is located 25 miles (41 kilometers) N of KLS.
• There is one flight school located at the airport.

Facts about Portland International Jetport (PWM):

• Portland International Jetport (PWM) has 2 runways.
• That year regional Air New England began service in Portland, competing with Northeast Airlines intrastate and between Portland and Boston.
• In 2004 Runway 11/29 was lengthened to 7,200 feet.
• 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.
• 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.
• That same year, regional Ransome Airlines, doing business as Delta Connection, began a route between Portland and Boston.
• 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.