| Belfast to Nowy Dwor Mazowiecki | 1,098.13 mi (1,767.27 km) |
| Belfast to Nowy Sacz | 1,172.84 mi (1,887.51 km) |
| Belfast to Nowy Targ | 1,150.80 mi (1,852.04 km) |
| Belfast to Nowy Tomysl | 917.30 mi (1,476.24 km) |
| Belfast to Nysa | 1,013.13 mi (1,630.47 km) |
| Belfast to Oborniki | 937.55 mi (1,508.84 km) |
| Belfast to Oborniki Slaskie | 972.74 mi (1,565.48 km) |
| Belfast to Olawa | 998.53 mi (1,606.99 km) |
| Belfast to Olecko | 1,138.68 mi (1,832.53 km) |
| Belfast to Olesnica | 994.59 mi (1,600.64 km) |
| Belfast to Olesno | 1,044.71 mi (1,681.29 km) |
| Belfast to Olkusz | 1,107.58 mi (1,782.49 km) |
| Belfast to Olsztyn | 1,062.90 mi (1,710.57 km) |
| Belfast to Opalenica | 928.71 mi (1,494.62 km) |
| Belfast to Opoczno | 1,106.06 mi (1,780.03 km) |
