| Garfield to Oerlinghausen | 3,797.71 mi (6,111.83 km) |
| Garfield to Oestrich-Winkel | 3,826.65 mi (6,158.39 km) |
| Garfield to Offenburg | 3,868.60 mi (6,225.92 km) |
| Garfield to Oftersheim | 3,868.64 mi (6,225.98 km) |
| Garfield to Ohrdruf | 3,911.45 mi (6,294.87 km) |
| Garfield to Ohringen | 3,910.95 mi (6,294.06 km) |
| Garfield to Olbernhau | 4,018.23 mi (6,466.71 km) |
| Garfield to Olching | 4,015.97 mi (6,463.08 km) |
| Garfield to Oldenburg | 3,748.29 mi (6,032.28 km) |
| Garfield to Oldenburg in Holstein | 3,817.40 mi (6,143.52 km) |
| Garfield to Olfen | 3,754.24 mi (6,041.87 km) |
| Garfield to Olpe | 3,791.26 mi (6,101.44 km) |
| Garfield to Olsberg | 3,807.70 mi (6,127.90 km) |
| Garfield to Oranienburg | 3,949.91 mi (6,356.77 km) |
| Garfield to Ortenberg | 3,858.81 mi (6,210.15 km) |
