| Appenzell to Oakley (California) | 5,816.15 mi (9,360.20 km) |
| Appenzell to Oakton (Virginia) | 4,182.83 mi (6,731.62 km) |
| Appenzell to Oakville (Missouri) | 4,728.85 mi (7,610.34 km) |
| Appenzell to Oatfield (Oregon) | 5,400.02 mi (8,690.50 km) |
| Appenzell to Ocala (Florida) | 4,835.39 mi (7,781.81 km) |
| Appenzell to Ocean Acres (New Jersey) | 4,019.50 mi (6,468.77 km) |
| Appenzell to Ocean City (New Jersey) | 4,053.14 mi (6,522.89 km) |
| Appenzell to Ocean Pines (Maryland) | 4,113.99 mi (6,620.82 km) |
| Appenzell to Ocean Pointe (Hawaii) | 7,629.72 mi (12,278.85 km) |
| Appenzell to Ocean Springs (Mississippi) | 5,058.65 mi (8,141.10 km) |
| Appenzell to Oceanside (California) | 5,965.36 mi (9,600.31 km) |
| Appenzell to Oceanside (New York) | 3,955.25 mi (6,365.36 km) |
| Appenzell to Ocoee (Florida) | 4,837.08 mi (7,784.53 km) |
| Appenzell to Oconomowoc (Wisconsin) | 4,439.89 mi (7,145.31 km) |
| Appenzell to Odenton (Maryland) | 4,149.72 mi (6,678.33 km) |
