| Erba to Orangevale (California) | 5,840.18 mi (9,398.86 km) |
| Erba to Orchards (Washington) | 5,465.82 mi (8,796.38 km) |
| Erba to Orcutt (California) | 6,039.47 mi (9,719.59 km) |
| Erba to Oregon (Ohio) | 4,359.34 mi (7,015.69 km) |
| Erba to Oregon (Wisconsin) | 4,537.23 mi (7,301.97 km) |
| Erba to Oregon City (Oregon) | 5,487.76 mi (8,831.69 km) |
| Erba to Orem (Utah) | 5,458.82 mi (8,785.13 km) |
| Erba to Orinda (California) | 5,915.00 mi (9,519.26 km) |
| Erba to Orland Park (Illinois) | 4,537.48 mi (7,302.37 km) |
| Erba to Orlando (Florida) | 4,861.83 mi (7,824.37 km) |
| Erba to Ormond Beach (Florida) | 4,813.20 mi (7,746.10 km) |
| Erba to Oro Valley (Arizona) | 5,867.24 mi (9,442.41 km) |
| Erba to Oroville (California) | 5,802.44 mi (9,338.13 km) |
| Erba to Oshkosh (Wisconsin) | 4,456.46 mi (7,171.98 km) |
| Erba to Oskaloosa (Iowa) | 4,736.62 mi (7,622.85 km) |
