| Wittmund to Orangevale (California) | 5,375.65 mi (8,651.27 km) |
| Wittmund to Orchards (Washington) | 4,981.34 mi (8,016.70 km) |
| Wittmund to Orcutt (California) | 5,587.37 mi (8,992.01 km) |
| Wittmund to Oregon (Ohio) | 4,028.58 mi (6,483.37 km) |
| Wittmund to Oregon (Wisconsin) | 4,174.22 mi (6,717.76 km) |
| Wittmund to Oregon City (Oregon) | 5,003.87 mi (8,052.95 km) |
| Wittmund to Orem (Utah) | 5,022.38 mi (8,082.73 km) |
| Wittmund to Orinda (California) | 5,449.26 mi (8,769.74 km) |
| Wittmund to Orland Park (Illinois) | 4,188.23 mi (6,740.31 km) |
| Wittmund to Orlando (Florida) | 4,625.11 mi (7,443.39 km) |
| Wittmund to Ormond Beach (Florida) | 4,572.63 mi (7,358.93 km) |
| Wittmund to Oro Valley (Arizona) | 5,460.62 mi (8,788.01 km) |
| Wittmund to Oroville (California) | 5,334.84 mi (8,585.60 km) |
| Wittmund to Oshkosh (Wisconsin) | 4,090.49 mi (6,583.00 km) |
| Wittmund to Oskaloosa (Iowa) | 4,369.34 mi (7,031.78 km) |
