| Sankt Gallen to Odessa (Texas) | 5,516.61 mi (8,878.13 km) |
| Sankt Gallen to Ogden (Utah) | 5,337.57 mi (8,589.99 km) |
| Sankt Gallen to Oildale (California) | 5,883.73 mi (9,468.94 km) |
| Sankt Gallen to Ojus (Florida) | 4,898.46 mi (7,883.31 km) |
| Sankt Gallen to Okemos (Michigan) | 4,296.53 mi (6,914.60 km) |
| Sankt Gallen to Oklahoma City (Oklahoma) | 5,147.44 mi (8,284.01 km) |
| Sankt Gallen to Okmulgee (Oklahoma) | 5,082.75 mi (8,179.90 km) |
| Sankt Gallen to Olathe (Kansas) | 4,873.86 mi (7,843.72 km) |
| Sankt Gallen to Old Jamestown (Missouri) | 4,703.38 mi (7,569.35 km) |
| Sankt Gallen to Oldsmar (Florida) | 4,907.90 mi (7,898.51 km) |
| Sankt Gallen to Olean (New York) | 4,086.98 mi (6,577.35 km) |
| Sankt Gallen to Olive Branch (Mississippi) | 4,873.87 mi (7,843.73 km) |
| Sankt Gallen to Olivehurst (California) | 5,741.58 mi (9,240.18 km) |
| Sankt Gallen to Olney (Maryland) | 4,157.28 mi (6,690.50 km) |
| Sankt Gallen to Olympia (Washington) | 5,304.44 mi (8,536.68 km) |
