Nonstop flight route between St. Mary's, Alaska, United States and Santa Rosa, California, United States:
Departure Airport:

Arrival Airport:

Distance from KSM to STS:
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- About this route
- KSM Airport Information
- STS Airport Information
- Facts about KSM
- Facts about STS
- Map of Nearest Airports to KSM
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- Map of Furthest Airports from KSM
- List of Furthest Airports from KSM
- Map of Nearest Airports to STS
- List of Nearest Airports to STS
- Map of Furthest Airports from STS
- List of Furthest Airports from STS
About this route:
A direct, nonstop flight between St. Mary's Airport (KSM), St. Mary's, Alaska, United States and Charles M. Schulz–Sonoma County Airport (STS), Santa Rosa, California, United States would travel a Great Circle distance of 2,350 miles (or 3,782 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 St. Mary's Airport and Charles M. Schulz–Sonoma County Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | KSM / PASM |
Airport Name: | St. Mary's Airport |
Location: | St. Mary's, Alaska, United States |
GPS Coordinates: | 62°3'38"N by 163°18'6"W |
Operator/Owner: | Alaska DOT&PF |
Airport Type: | Public |
Elevation: | 312 feet (95 meters) |
# of Runways: | 2 |
View all routes: | Routes from KSM |
More Information: | KSM Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | STS / KSTS |
Airport Names: |
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Location: | Santa Rosa, California, United States |
GPS Coordinates: | 38°30'32"N by 122°48'46"W |
Airport Type: | Public |
Elevation: | 125 feet (38 meters) |
# of Runways: | 2 |
View all routes: | Routes from STS |
More Information: | STS Maps & Info |
Facts about St. Mary's Airport (KSM):
- The furthest airport from St. Mary's Airport (KSM) is Cape Town International Airport (CPT), which is located 10,494 miles (16,889 kilometers) away in Cape Town, South Africa.
- St. Mary's Airport (KSM) has 2 runways.
- The closest airport to St. Mary's Airport (KSM) is Mountain Village Airport (MOU), which is located only 13 miles (20 kilometers) W of KSM.
- Because of St. Mary's Airport's relatively low elevation of 312 feet, planes can take off or land at St. Mary's 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.
Facts about Charles M. Schulz–Sonoma County Airport (STS):
- The closest airport to Charles M. Schulz–Sonoma County Airport (STS) is Marin County Airport (NOT), which is located 29 miles (46 kilometers) SSE of STS.
- Around 1986 United Airlines entered into a code share agreement with WestAir, a commuter airline that served STS, which in turn began flying as United Express with service to SFO until 2001.
- From the late 1940s until about 1974 Southwest Airways and successors Pacific Air Lines, Air West and Hughes Airwest served Santa Rosa.
- The furthest airport from Charles M. Schulz–Sonoma County Airport (STS) is Tôlanaro Airport (FTU), which is located 11,331 miles (18,235 kilometers) away in Tôlanaro, Madagascar.
- Charles M. Schulz–Sonoma County Airport (STS) has 2 runways.
- Because of Charles M. Schulz–Sonoma County Airport's relatively low elevation of 125 feet, planes can take off or land at Charles M. Schulz–Sonoma County 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 Pacific Coast Air Museum is located on the southeast corner of the airport, next to the airplane hangar used in the 1963 Hollywood all-star comedy movie, It's a Mad, Mad, Mad, Mad World.
- In addition to being known as "Charles M. Schulz–Sonoma County Airport", another name for STS is "Santa Rosa Army Airfield".
- Alaska Airlines operated by Horizon Air, has 5 or 6 flights a day from Santa Rosa, 2 or 3 flights a day to Los Angeles and 1 flight a day to Seattle, Portland, and San Diego.