Nonstop flight route between Half Moon Bay, California, United States and St. Louis, Missouri, United States:
Departure Airport:

Arrival Airport:

Distance from HAF to STL:
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- About this route
- HAF Airport Information
- STL Airport Information
- Facts about HAF
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- List of Furthest Airports from HAF
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- List of Furthest Airports from STL
About this route:
A direct, nonstop flight between Half Moon Bay AirportHalf Moon Bay Flight Strip (HAF), Half Moon Bay, California, United States and Lambert–St. Louis International Airport (STL), St. Louis, Missouri, United States would travel a Great Circle distance of 1,740 miles (or 2,800 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 Half Moon Bay AirportHalf Moon Bay Flight Strip and Lambert–St. Louis International Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | HAF / KHAF |
Airport Name: | Half Moon Bay AirportHalf Moon Bay Flight Strip |
Location: | Half Moon Bay, California, United States |
GPS Coordinates: | 37°30'47"N by 122°30'3"W |
Operator/Owner: | San Mateo County |
Airport Type: | Public |
Elevation: | 66 feet (20 meters) |
# of Runways: | 1 |
View all routes: | Routes from HAF |
More Information: | HAF Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | STL / KSTL |
Airport Name: | Lambert–St. Louis International Airport |
Location: | St. Louis, Missouri, United States |
GPS Coordinates: | 38°44'49"N by 90°21'41"W |
Area Served: | Greater St. Louis, Missouri |
Operator/Owner: | City of St. Louis |
Airport Type: | Public |
Elevation: | 605 feet (184 meters) |
# of Runways: | 4 |
View all routes: | Routes from STL |
More Information: | STL Maps & Info |
Facts about Half Moon Bay AirportHalf Moon Bay Flight Strip (HAF):
- The furthest airport from Half Moon Bay AirportHalf Moon Bay Flight Strip (HAF) is Tôlanaro Airport (FTU), which is located 11,375 miles (18,307 kilometers) away in Tôlanaro, Madagascar.
- Half Moon Bay AirportHalf Moon Bay Flight Strip (HAF) currently has only 1 runway.
- The closest airport to Half Moon Bay AirportHalf Moon Bay Flight Strip (HAF) is San Francisco International Airport (SFO), which is located only 10 miles (16 kilometers) NE of HAF.
- Following the end of World War II, San Mateo County acquired the airport from the Navy in 1947.
- Because of Half Moon Bay AirportHalf Moon Bay Flight Strip's relatively low elevation of 66 feet, planes can take off or land at Half Moon Bay AirportHalf Moon Bay Flight Strip 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.
- Half Moon Bay Airport covers an area of 325 acres at an elevation of 66 feet above mean sea level.
Facts about Lambert–St. Louis International Airport (STL):
- Because of Lambert–St. Louis International Airport's relatively low elevation of 605 feet, planes can take off or land at Lambert–St. Louis 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 September 11, 2001 terrorist attacks were a huge demand shock to air service nationwide, with total airline industry domestic revenue passenger miles dropping 20% in October 2001 and 17% in November 2001.
- The furthest airport from Lambert–St. Louis International Airport (STL) is Margaret River Airport (MGV), which is located 10,986 miles (17,681 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Lambert–St. Louis International Airport (STL) is St. Louis Downtown Airport (CPS), which is located only 16 miles (27 kilometers) SE of STL.
- Lambert–St. Louis International Airport (STL) has 4 runways.
- During the war, the airport became a manufacturing base for McDonnell Aircraft and Curtiss-Wright.
- In early October 2009, Southwest Airlines announced the addition of 6 daily flights to several cities it already served from St.