| Sulmona to Oerlinghausen | 728.26 mi (1,172.01 km) |
| Sulmona to Oestrich-Winkel | 618.16 mi (994.83 km) |
| Sulmona to Offenburg | 530.32 mi (853.47 km) |
| Sulmona to Oftersheim | 567.45 mi (913.22 km) |
| Sulmona to Ohrdruf | 625.25 mi (1,006.25 km) |
| Sulmona to Ohringen | 538.22 mi (866.18 km) |
| Sulmona to Olbernhau | 596.16 mi (959.43 km) |
| Sulmona to Olching | 443.62 mi (713.93 km) |
| Sulmona to Oldenburg | 810.89 mi (1,305.00 km) |
| Sulmona to Oldenburg in Holstein | 857.85 mi (1,380.58 km) |
| Sulmona to Olfen | 735.32 mi (1,183.38 km) |
| Sulmona to Olpe | 683.44 mi (1,099.89 km) |
| Sulmona to Olsberg | 692.04 mi (1,113.74 km) |
| Sulmona to Oranienburg | 740.43 mi (1,191.61 km) |
| Sulmona to Ortenberg | 619.13 mi (996.40 km) |
