| Appenzell to Oswego (Illinois) | 4,499.43 mi (7,241.14 km) |
| Appenzell to Oswego (New York) | 3,956.73 mi (6,367.75 km) |
| Appenzell to Otsego (Minnesota) | 4,525.36 mi (7,282.87 km) |
| Appenzell to Ottawa (Illinois) | 4,533.39 mi (7,295.78 km) |
| Appenzell to Ottawa (Kansas) | 4,910.06 mi (7,901.97 km) |
| Appenzell to Ottumwa (Iowa) | 4,685.05 mi (7,539.85 km) |
| Appenzell to Overland (Missouri) | 4,718.80 mi (7,594.17 km) |
| Appenzell to Overland Park (Kansas) | 4,874.18 mi (7,844.24 km) |
| Appenzell to Overlea (Maryland) | 4,129.49 mi (6,645.78 km) |
| Appenzell to Oviedo (Florida) | 4,818.18 mi (7,754.12 km) |
| Appenzell to Owasso (Oklahoma) | 5,047.36 mi (8,122.93 km) |
| Appenzell to Owatonna (Minnesota) | 4,567.48 mi (7,350.64 km) |
| Appenzell to Owensboro (Kentucky) | 4,635.52 mi (7,460.15 km) |
| Appenzell to Owings Mills (Maryland) | 4,138.89 mi (6,660.90 km) |
| Appenzell to Owosso (Michigan) | 4,279.73 mi (6,887.57 km) |
