Nonstop flight route between Santa Rosa, California, United States and Round Lake, Ontario, Canada:
Departure Airport:
Arrival Airport:
Distance from STS to ZRJ:
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- About this route
 - STS Airport Information
 - ZRJ Airport Information
 - Facts about STS
 - Facts about ZRJ
 - Map of Nearest Airports to STS
 - List of Nearest Airports to STS
 - Map of Furthest Airports from STS
 - List of Furthest Airports from STS
 - Map of Nearest Airports to ZRJ
 - List of Nearest Airports to ZRJ
 - Map of Furthest Airports from ZRJ
 - List of Furthest Airports from ZRJ
 
About this route:
A direct, nonstop flight between Charles M. Schulz–Sonoma County Airport (STS), Santa Rosa, California, United States and Round Lake (Weagamow Lake) Airport (ZRJ), Round Lake, Ontario, Canada would travel a Great Circle distance of 1,795 miles (or 2,889 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 Charles M. Schulz–Sonoma County Airport and Round Lake (Weagamow Lake) Airport, the route shown on this map most likely still appears to be a straight line.
Departure 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 | 
Arrival Airport Information:
| IATA / ICAO Codes: | ZRJ / CZRJ | 
| Airport Name: | Round Lake (Weagamow Lake) Airport | 
| Location: | Round Lake, Ontario, Canada | 
| GPS Coordinates: | 52°56'36"N by 91°18'45"W | 
| Operator/Owner: | Government of Ontario | 
| Airport Type: | Public | 
| Elevation: | 974 feet (297 meters) | 
| # of Runways: | 1 | 
| View all routes: | Routes from ZRJ | 
| More Information: | ZRJ Maps & Info | 
Facts about Charles M. Schulz–Sonoma County Airport (STS):
- Charles M. Schulz–Sonoma County Airport (STS) has 2 runways.
 - As part of an agreement between the airport, Alaska Airlines, and the local enotourism industry announced in January 2012 that passengers are allowed to check a 12 bottle case of wine for free on all Alaska Airlines flights from the airport.
 - 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 addition to being known as "Charles M. Schulz–Sonoma County Airport", another name for STS is "Santa Rosa Army Airfield".
 - 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.
 - Santa Rosa Army Airfield
 - The airfield was inactivated on 31 January 1946 and turned over to the War Assets Administration for eventual conversion to a civil airport.
 - 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.
 - In August 2013 the airport started a project to decouple the ends of the two runways and extend runway 14/32 by 885 feet, to 6000 feet and extend runway 1/19 by 200 feet, to 5202 feet.
 
Facts about Round Lake (Weagamow Lake) Airport (ZRJ):
- Round Lake (Weagamow Lake) Airport (ZRJ) currently has only 1 runway.
 - The closest airport to Round Lake (Weagamow Lake) Airport (ZRJ) is Muskrat Dam Airport (MSA), which is located 39 miles (63 kilometers) NNW of ZRJ.
 - Because of Round Lake (Weagamow Lake) Airport's relatively low elevation of 974 feet, planes can take off or land at Round Lake (Weagamow Lake) 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 Round Lake (Weagamow Lake) Airport (ZRJ) is Margaret River Airport (MGV), which is located 10,591 miles (17,044 kilometers) away in Margaret River, Western Australia, Australia.
 
