| Birsfelden to Orangevale (California) | 5,698.96 mi (9,171.59 km) |
| Birsfelden to Orchards (Washington) | 5,324.05 mi (8,568.23 km) |
| Birsfelden to Orcutt (California) | 5,898.95 mi (9,493.45 km) |
| Birsfelden to Oregon (Ohio) | 4,231.32 mi (6,809.66 km) |
| Birsfelden to Oregon (Wisconsin) | 4,405.04 mi (7,089.22 km) |
| Birsfelden to Oregon City (Oregon) | 5,345.99 mi (8,603.55 km) |
| Birsfelden to Orem (Utah) | 5,319.31 mi (8,560.60 km) |
| Birsfelden to Orinda (California) | 5,773.73 mi (9,291.92 km) |
| Birsfelden to Orland Park (Illinois) | 4,407.08 mi (7,092.50 km) |
| Birsfelden to Orlando (Florida) | 4,749.45 mi (7,643.51 km) |
| Birsfelden to Ormond Beach (Florida) | 4,700.08 mi (7,564.04 km) |
| Birsfelden to Oro Valley (Arizona) | 5,730.63 mi (9,222.56 km) |
| Birsfelden to Oroville (California) | 5,661.09 mi (9,110.64 km) |
| Birsfelden to Oshkosh (Wisconsin) | 4,323.83 mi (6,958.54 km) |
| Birsfelden to Oskaloosa (Iowa) | 4,604.02 mi (7,409.45 km) |
