| Merrifield to Oerlinghausen | 4,013.82 mi (6,459.61 km) |
| Merrifield to Oestrich-Winkel | 4,043.01 mi (6,506.59 km) |
| Merrifield to Offenburg | 4,084.93 mi (6,574.06 km) |
| Merrifield to Oftersheim | 4,085.01 mi (6,574.19 km) |
| Merrifield to Ohrdruf | 4,127.65 mi (6,642.81 km) |
| Merrifield to Ohringen | 4,127.32 mi (6,642.27 km) |
| Merrifield to Olbernhau | 4,234.31 mi (6,814.46 km) |
| Merrifield to Olching | 4,232.34 mi (6,811.29 km) |
| Merrifield to Oldenburg | 3,964.12 mi (6,379.64 km) |
| Merrifield to Oldenburg in Holstein | 4,032.57 mi (6,489.79 km) |
| Merrifield to Olfen | 3,970.46 mi (6,389.83 km) |
| Merrifield to Olpe | 4,007.55 mi (6,449.52 km) |
| Merrifield to Olsberg | 4,023.92 mi (6,475.88 km) |
| Merrifield to Oranienburg | 4,165.43 mi (6,703.62 km) |
| Merrifield to Ortenberg | 4,075.13 mi (6,558.28 km) |
