| Sondrio to Oakley (California) | 5,893.57 mi (9,484.78 km) |
| Sondrio to Oakton (Virginia) | 4,238.70 mi (6,821.53 km) |
| Sondrio to Oakville (Missouri) | 4,791.81 mi (7,711.67 km) |
| Sondrio to Oatfield (Oregon) | 5,479.58 mi (8,818.52 km) |
| Sondrio to Ocala (Florida) | 4,885.49 mi (7,862.44 km) |
| Sondrio to Ocean Acres (New Jersey) | 4,074.42 mi (6,557.14 km) |
| Sondrio to Ocean City (New Jersey) | 4,107.76 mi (6,610.80 km) |
| Sondrio to Ocean Pines (Maryland) | 4,168.05 mi (6,707.83 km) |
| Sondrio to Ocean Pointe (Hawaii) | 7,712.85 mi (12,412.63 km) |
| Sondrio to Ocean Springs (Mississippi) | 5,114.50 mi (8,231.00 km) |
| Sondrio to Oceanside (California) | 6,039.44 mi (9,719.54 km) |
| Sondrio to Oceanside (New York) | 4,010.70 mi (6,454.60 km) |
| Sondrio to Ocoee (Florida) | 4,886.18 mi (7,863.55 km) |
| Sondrio to Oconomowoc (Wisconsin) | 4,505.35 mi (7,250.66 km) |
| Sondrio to Odenton (Maryland) | 4,205.40 mi (6,767.93 km) |
