| Porthcawl to Oschatz | 722.73 mi (1,163.12 km) |
| Porthcawl to Oschersleben | 639.03 mi (1,028.42 km) |
| Porthcawl to Osnabruck | 503.22 mi (809.85 km) |
| Porthcawl to Ostbevern | 494.33 mi (795.54 km) |
| Porthcawl to Osterburg | 660.41 mi (1,062.82 km) |
| Porthcawl to Ostercappeln | 511.11 mi (822.55 km) |
| Porthcawl to Osterhofen | 763.32 mi (1,228.44 km) |
| Porthcawl to Osterholz-Scharmbeck | 539.88 mi (868.86 km) |
| Porthcawl to Osternienburg | 672.55 mi (1,082.37 km) |
| Porthcawl to Osterode | 597.64 mi (961.81 km) |
| Porthcawl to Osterwieck | 616.52 mi (992.19 km) |
| Porthcawl to Ostfildern | 603.05 mi (970.52 km) |
| Porthcawl to Osthofen | 540.52 mi (869.89 km) |
| Porthcawl to Ostrhauderfehn | 490.39 mi (789.20 km) |
| Porthcawl to Ostringen | 567.81 mi (913.81 km) |
