Nonstop flight route between Houston, Texas, United States and Alton, Illinois, United States:

About this route:

A direct, nonstop flight between William P. Hobby Airport (HOU), Houston, Texas, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 705 miles (or 1,134 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 William P. Hobby 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 William P. Hobby Airport (HOU):

• The furthest airport from William P. Hobby Airport (HOU) is Cocos (Keeling) Island Airport (CCK), which is located 11,002 miles (17,706 kilometers) away in Cocos Islands, Australia.
• In addition to being known as "William P. Hobby Airport", another name for HOU is "Houston Hobby".
• The closest airport to William P. Hobby Airport (HOU) is Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field (EFD), which is located only 8 miles (12 kilometers) ESE of HOU.
• Southwest Airlines operated more than 80 percent of the total enplanements at Hobby in 2005 and an average of 10 flights per day per gate.
• Because of William P. Hobby Airport's relatively low elevation of 46 feet, planes can take off or land at William P. Hobby 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.
• George Bush Intercontinental Airport opened in 1969 because of expansion limitations at Hobby, and all airlines at Hobby moved there.
• William P. Hobby Airport handled 9,054,001 passengers last year.
• Courtesy vans are operated by various hotels and motels in and around the Houston area.
• TranStar Airlines corporate headquarters were at the airport.
• William P. Hobby Airport (HOU) has 4 runways.

Facts about St. Louis Regional Airport (ALN):

• 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.
• 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.
• West Star Aviation is the largest fixed base operations company at the airport.
• Civic Memorial Airport opened in 1946 and received its current name in 1984.
• 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 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.
• St. Louis Regional Airport (ALN) has 2 runways.