| Altdorf to Oakley (California) | 5,819.82 mi (9,366.09 km) |
| Altdorf to Oakton (Virginia) | 4,164.41 mi (6,701.97 km) |
| Altdorf to Oakville (Missouri) | 4,716.13 mi (7,589.87 km) |
| Altdorf to Oatfield (Oregon) | 5,407.49 mi (8,702.51 km) |
| Altdorf to Ocala (Florida) | 4,812.97 mi (7,745.73 km) |
| Altdorf to Ocean Acres (New Jersey) | 4,000.38 mi (6,437.99 km) |
| Altdorf to Ocean City (New Jersey) | 4,033.80 mi (6,491.78 km) |
| Altdorf to Ocean Pines (Maryland) | 4,094.25 mi (6,589.07 km) |
| Altdorf to Ocean Pointe (Hawaii) | 7,652.94 mi (12,316.21 km) |
| Altdorf to Ocean Springs (Mississippi) | 5,040.24 mi (8,111.49 km) |
| Altdorf to Oceanside (California) | 5,964.25 mi (9,598.54 km) |
| Altdorf to Oceanside (New York) | 3,936.51 mi (6,335.21 km) |
| Altdorf to Ocoee (Florida) | 4,814.01 mi (7,747.41 km) |
| Altdorf to Oconomowoc (Wisconsin) | 4,429.42 mi (7,128.46 km) |
| Altdorf to Odenton (Maryland) | 4,131.16 mi (6,648.46 km) |
