| Heerlerbaan to Nowy Sacz | 653.50 mi (1,051.70 km) |
| Heerlerbaan to Nowy Targ | 626.43 mi (1,008.14 km) |
| Heerlerbaan to Nowy Tomysl | 445.48 mi (716.92 km) |
| Heerlerbaan to Nysa | 496.13 mi (798.45 km) |
| Heerlerbaan to Oborniki | 477.73 mi (768.84 km) |
| Heerlerbaan to Oborniki Slaskie | 473.21 mi (761.57 km) |
| Heerlerbaan to Olawa | 491.48 mi (790.96 km) |
| Heerlerbaan to Olecko | 726.00 mi (1,168.38 km) |
| Heerlerbaan to Olesnica | 494.18 mi (795.31 km) |
| Heerlerbaan to Olesno | 540.30 mi (869.53 km) |
| Heerlerbaan to Olkusz | 595.31 mi (958.05 km) |
| Heerlerbaan to Olsztyn | 641.88 mi (1,033.00 km) |
| Heerlerbaan to Opalenica | 457.09 mi (735.61 km) |
| Heerlerbaan to Opoczno | 619.13 mi (996.40 km) |
| Heerlerbaan to Opole | 520.64 mi (837.90 km) |
