| Castlebar to Plombieres | 678.02 mi (1,091.17 km) |
| Castlebar to Pont-a-Celles | 621.88 mi (1,000.82 km) |
| Castlebar to Poperinge | 547.40 mi (880.95 km) |
| Castlebar to Profondeville | 646.12 mi (1,039.83 km) |
| Castlebar to Putte | 616.71 mi (992.49 km) |
| Castlebar to Puurs | 601.96 mi (968.76 km) |
| Castlebar to Quaregnon | 605.19 mi (973.96 km) |
| Castlebar to Raeren | 686.09 mi (1,104.16 km) |
| Castlebar to Ranst | 609.28 mi (980.54 km) |
| Castlebar to Ravels | 622.91 mi (1,002.47 km) |
| Castlebar to Retie | 628.16 mi (1,010.92 km) |
| Castlebar to Riemst | 662.01 mi (1,065.41 km) |
| Castlebar to Rijkevorsel | 613.99 mi (988.11 km) |
| Castlebar to Rixensart | 622.40 mi (1,001.65 km) |
| Castlebar to Rochefort | 666.43 mi (1,072.51 km) |
