| Somma Vesuviana to Orangevale (California) | 6,270.19 mi (10,090.90 km) |
| Somma Vesuviana to Orchards (Washington) | 5,892.89 mi (9,483.69 km) |
| Somma Vesuviana to Orcutt (California) | 6,469.96 mi (10,412.39 km) |
| Somma Vesuviana to Oregon (Ohio) | 4,770.90 mi (7,678.01 km) |
| Somma Vesuviana to Oregon (Wisconsin) | 4,956.71 mi (7,977.05 km) |
| Somma Vesuviana to Oregon City (Oregon) | 5,914.97 mi (9,519.22 km) |
| Somma Vesuviana to Orem (Utah) | 5,888.92 mi (9,477.30 km) |
| Somma Vesuviana to Orinda (California) | 6,344.93 mi (10,211.18 km) |
| Somma Vesuviana to Orland Park (Illinois) | 4,953.59 mi (7,972.04 km) |
| Somma Vesuviana to Orlando (Florida) | 5,237.93 mi (8,429.64 km) |
| Somma Vesuviana to Ormond Beach (Florida) | 5,191.16 mi (8,354.36 km) |
| Somma Vesuviana to Oro Valley (Arizona) | 6,293.81 mi (10,128.91 km) |
| Somma Vesuviana to Oroville (California) | 6,232.20 mi (10,029.76 km) |
| Somma Vesuviana to Oshkosh (Wisconsin) | 4,876.76 mi (7,848.39 km) |
| Somma Vesuviana to Oskaloosa (Iowa) | 5,156.73 mi (8,298.95 km) |
