Nonstop flight route between Thorne Bay, Alaska, United States and Portland, Oregon, United States:

About this route:

A direct, nonstop flight between Thorne Bay Seaplane Base (KTB), Thorne Bay, Alaska, United States and Portland International Airport (PDX), Portland, Oregon, United States would travel a Great Circle distance of 821 miles (or 1,321 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 relatively short distance between Thorne Bay Seaplane Base and Portland International Airport, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

Facts about Thorne Bay Seaplane Base (KTB):

• Thorne Bay Seaplane Base (KTB) currently has only 1 runway.
• Because of Thorne Bay Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Thorne Bay Seaplane Base 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 closest airport to Thorne Bay Seaplane Base (KTB) is Hollis Clark Bay Seaplane Base (HYL), which is located only 14 miles (23 kilometers) SSW of KTB.
• The furthest airport from Thorne Bay Seaplane Base (KTB) is Port Alfred Airport (AFD), which is located 10,618 miles (17,088 kilometers) away in Port Alfred, South Africa.

Facts about Portland International Airport (PDX):

• By 1935 it was becoming apparent to the Port of Portland that the Swan Island Airport was becoming obsolete.
• The early 1990s saw a food court and extension added to Concourse C, and the opening of the new Concourse D in 1994.
• 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.
• During World War II the airfield was used by the United States Army Air Forces.
• Portland International Airport handled 1,502,956 passengers last year.
• Concourses A and B are given mostly to Alaska Airlines and Horizon Air.
• Portland International Airport (PDX) has 3 runways.
• 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 closest airport to Portland International Airport (PDX) is Portland-Troutdale Airport (TTD), which is located only 10 miles (16 kilometers) ESE of PDX.
• Meanwhile, local travel businesses had begun recruiting other carriers.