| Ronkonkoma to Oerlinghausen | 3,762.70 mi (6,055.49 km) |
| Ronkonkoma to Oestrich-Winkel | 3,790.07 mi (6,099.53 km) |
| Ronkonkoma to Offenburg | 3,830.95 mi (6,165.32 km) |
| Ronkonkoma to Oftersheim | 3,831.75 mi (6,166.60 km) |
| Ronkonkoma to Ohrdruf | 3,876.03 mi (6,237.87 km) |
| Ronkonkoma to Ohringen | 3,874.13 mi (6,234.80 km) |
| Ronkonkoma to Olbernhau | 3,983.27 mi (6,410.45 km) |
| Ronkonkoma to Olching | 3,978.88 mi (6,403.39 km) |
| Ronkonkoma to Oldenburg | 3,714.08 mi (5,977.24 km) |
| Ronkonkoma to Oldenburg in Holstein | 3,784.61 mi (6,090.75 km) |
| Ronkonkoma to Olfen | 3,718.80 mi (5,984.83 km) |
| Ronkonkoma to Olpe | 3,755.38 mi (6,043.70 km) |
| Ronkonkoma to Olsberg | 3,772.20 mi (6,070.77 km) |
| Ronkonkoma to Oranienburg | 3,916.43 mi (6,302.89 km) |
| Ronkonkoma to Ortenberg | 3,822.70 mi (6,152.04 km) |
