Nonstop flight route between Portland, Oregon, United States and Alton, Illinois, United States:

About this route:

A direct, nonstop flight between Portland International Airport (PDX), Portland, Oregon, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 1,715 miles (or 2,760 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 Portland International Airport and St. Louis Regional Airport, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

Facts about Portland International Airport (PDX):

• The closest airport to Portland International Airport (PDX) is Portland-Troutdale Airport (TTD), which is located only 10 miles (16 kilometers) ESE of PDX.
• The April 1957 OAG shows 38 United departures a day, 10 West Coast, 8 Northwest and 6 Western.
• 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.
• A new terminal opened in 1959, which for the most part serves as the present facility.
• Swan Island Airport was officially named Portland Airport until the opening of the new airport.
• 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.
• In 2012, PDX handled 14,390,784 passengers and had non-stop commercial air service to 17 of the 18 most populated US Metropolitan Statistical Areas.
• Portland International Airport handled 1,502,956 passengers last year.

Facts about St. Louis Regional Airport (ALN):

• Because of St. Louis Regional Airport's relatively low elevation of 544 feet, planes can take off or land at St. Louis 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.
• The 2,250 acres airfield sits at 544 ft MSL.
• The closest airport to St. Louis Regional Airport (ALN) is Lambert–St. Louis International Airport (STL), which is located only 20 miles (32 kilometers) WSW of ALN.
• St. Louis Regional Airport (ALN) has 2 runways.
• The furthest airport from St. Louis Regional Airport (ALN) is Margaret River Airport (MGV), which is located 11,002 miles (17,706 kilometers) away in Margaret River, Western Australia, Australia.
• Its operations are paid for by an airport taxation district created in 1946, which collects taxes from property owners in the Madison County townships of Alton, Wood River, Foster and Fort Russell.