Nonstop flight route between San Francisco, California, United States and Allentown, Pennsylvania, United States:

About this route:

A direct, nonstop flight between San Francisco International Airport (SFO), San Francisco, California, United States and Lehigh Valley International Airport (ABE), Allentown, Pennsylvania, United States would travel a Great Circle distance of 2,494 miles (or 4,014 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 San Francisco International Airport and Lehigh Valley 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 San Francisco International Airport (SFO):

• Before the 1930s, airports used a two-byte abbreviation.
• San Francisco International Airport (SFO) has 4 runways.
• On May 12, 2008, a $383 million renovation project was announced that included a new control tower, the use of green materials, and a seismic retrofit.
• San Francisco International Airport handled 44,477,209 passengers last year.
• The first international nonstops were ANA/BCPA DC-4s to Vancouver in 1946-47.
• The furthest airport from San Francisco International Airport (SFO) is Tôlanaro Airport (FTU), which is located 11,365 miles (18,290 kilometers) away in Tôlanaro, Madagascar.
• SFO was one of several US airports which operated the Registered Traveler program from April 2007 until funding ended in June 2009, which had allowed travelers to pass through security checkpoints quickly.
• Because of San Francisco International Airport's relatively low elevation of 13 feet, planes can take off or land at San Francisco 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.
• The closest airport to San Francisco International Airport (SFO) is Half Moon Bay AirportHalf Moon Bay Flight Strip (HAF), which is located only 10 miles (16 kilometers) SW of SFO.
• SFO is the largest airport in the Bay Area and the second busiest in California, after Los Angeles International Airport.

Facts about Lehigh Valley International Airport (ABE):

• The airport before terminal expansion.
• Lehigh Valley International Airport (ABE) has 2 runways.
• A new passenger terminal began construction in 1948 and was finished in 1950.
• The airport website says in 2012 the airport had 100,048 aircraft operations.
• The closest airport to Lehigh Valley International Airport (ABE) is Quakertown Airport (UKT), which is located only 15 miles (25 kilometers) SSE of ABE.
• The furthest airport from Lehigh Valley International Airport (ABE) is Margaret River Airport (MGV), which is located 11,695 miles (18,821 kilometers) away in Margaret River, Western Australia, Australia.
• Because of Lehigh Valley International Airport's relatively low elevation of 393 feet, planes can take off or land at Lehigh Valley 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.