| Gaffney to Oerlinghausen | 4,371.55 mi (7,035.33 km) |
| Gaffney to Oestrich-Winkel | 4,399.95 mi (7,081.03 km) |
| Gaffney to Offenburg | 4,440.96 mi (7,147.04 km) |
| Gaffney to Oftersheim | 4,441.72 mi (7,148.25 km) |
| Gaffney to Ohrdruf | 4,485.24 mi (7,218.29 km) |
| Gaffney to Ohringen | 4,484.08 mi (7,216.43 km) |
| Gaffney to Olbernhau | 4,592.07 mi (7,390.22 km) |
| Gaffney to Olching | 4,588.88 mi (7,385.09 km) |
| Gaffney to Oldenburg | 4,322.05 mi (6,955.67 km) |
| Gaffney to Oldenburg in Holstein | 4,390.50 mi (7,065.83 km) |
| Gaffney to Olfen | 4,328.03 mi (6,965.29 km) |
| Gaffney to Olpe | 4,364.91 mi (7,024.65 km) |
| Gaffney to Olsberg | 4,381.47 mi (7,051.30 km) |
| Gaffney to Oranienburg | 4,523.41 mi (7,279.73 km) |
| Gaffney to Ortenberg | 4,432.37 mi (7,133.21 km) |
