| Freeport to Oerlinghausen | 3,787.72 mi (6,095.74 km) |
| Freeport to Oestrich-Winkel | 3,815.41 mi (6,140.30 km) |
| Freeport to Offenburg | 3,856.49 mi (6,206.41 km) |
| Freeport to Oftersheim | 3,857.14 mi (6,207.47 km) |
| Freeport to Ohrdruf | 3,901.13 mi (6,278.27 km) |
| Freeport to Ohringen | 3,899.51 mi (6,275.65 km) |
| Freeport to Olbernhau | 4,008.27 mi (6,450.69 km) |
| Freeport to Olching | 4,004.31 mi (6,444.32 km) |
| Freeport to Oldenburg | 3,738.92 mi (6,017.21 km) |
| Freeport to Oldenburg in Holstein | 3,809.12 mi (6,130.19 km) |
| Freeport to Olfen | 3,743.90 mi (6,025.23 km) |
| Freeport to Olpe | 3,780.57 mi (6,084.25 km) |
| Freeport to Olsberg | 3,797.32 mi (6,111.19 km) |
| Freeport to Oranienburg | 3,941.11 mi (6,342.60 km) |
| Freeport to Ortenberg | 3,847.94 mi (6,192.66 km) |
