Nonstop flight route between Alma, Michigan, United States and Santa Rosa, California, United States:
Departure Airport:

Arrival Airport:

Distance from AMN to STS:
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- About this route
- AMN Airport Information
- STS Airport Information
- Facts about AMN
- Facts about STS
- Map of Nearest Airports to AMN
- List of Nearest Airports to AMN
- Map of Furthest Airports from AMN
- List of Furthest Airports from AMN
- Map of Nearest Airports to STS
- List of Nearest Airports to STS
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- List of Furthest Airports from STS
About this route:
A direct, nonstop flight between Gratiot Community Airport (AMN), Alma, Michigan, United States and Charles M. Schulz–Sonoma County Airport (STS), Santa Rosa, California, United States would travel a Great Circle distance of 2,000 miles (or 3,219 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 Gratiot Community 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: | AMN / KAMN |
Airport Name: | Gratiot Community Airport |
Location: | Alma, Michigan, United States |
GPS Coordinates: | 43°19'19"N by 84°41'17"W |
Area Served: | Alma, Michigan |
Operator/Owner: | City of Alma & County of Gratiot |
Airport Type: | Public |
Elevation: | 754 feet (230 meters) |
# of Runways: | 2 |
View all routes: | Routes from AMN |
More Information: | AMN 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 Gratiot Community Airport (AMN):
- The airport is staffed between 8am and 6pm.
- The furthest airport from Gratiot Community Airport (AMN) is Margaret River Airport (MGV), which is located 11,192 miles (18,011 kilometers) away in Margaret River, Western Australia, Australia.
- Gratiot Community Airport covers an area of 631 acres at an elevation of 754 feet above mean sea level.
- Because of Gratiot Community Airport's relatively low elevation of 754 feet, planes can take off or land at Gratiot Community 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.
- Gratiot Community Airport (AMN) has 2 runways.
- The closest airport to Gratiot Community Airport (AMN) is Mount Pleasant Municipal Airport (MOP), which is located 21 miles (34 kilometers) N of AMN.
Facts about Charles M. Schulz–Sonoma County Airport (STS):
- 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.
- 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.
- All Alaska Airlines flights from the airport are operated with the 76-seat Bombardier Q400 propjet, which is the largest and fastest member of the DHC-8 Dash 8 family of regional turboprops.
- In addition to being known as "Charles M. Schulz–Sonoma County Airport", another name for STS is "Santa Rosa Army Airfield".
- 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.
- In the 1930s Santa Rosa had a small municipal airfield owned by Richfield Oil Corporation next to the Redwood Highway about 4 miles southeast of the present airport.
- 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.
- Service to Las Vegas was stopped June 3, 2012.
- Charles M. Schulz–Sonoma County Airport (STS) has 2 runways.