| South Plainfield to Oerlinghausen | 3,823.70 mi (6,153.65 km) |
| South Plainfield to Oestrich-Winkel | 3,852.41 mi (6,199.85 km) |
| South Plainfield to Offenburg | 3,894.17 mi (6,267.07 km) |
| South Plainfield to Oftersheim | 3,894.35 mi (6,267.35 km) |
| South Plainfield to Ohrdruf | 3,937.38 mi (6,336.61 km) |
| South Plainfield to Ohringen | 3,936.67 mi (6,335.45 km) |
| South Plainfield to Olbernhau | 4,044.22 mi (6,508.55 km) |
| South Plainfield to Olching | 4,041.65 mi (6,504.40 km) |
| South Plainfield to Oldenburg | 3,774.37 mi (6,074.27 km) |
| South Plainfield to Oldenburg in Holstein | 3,843.63 mi (6,185.73 km) |
| South Plainfield to Olfen | 3,780.17 mi (6,083.60 km) |
| South Plainfield to Olpe | 3,817.12 mi (6,143.07 km) |
| South Plainfield to Olsberg | 3,833.62 mi (6,169.62 km) |
| South Plainfield to Oranienburg | 3,976.08 mi (6,398.88 km) |
| South Plainfield to Ortenberg | 3,884.64 mi (6,251.73 km) |
