| Heerlen to Oschatz | 310.36 mi (499.48 km) |
| Heerlen to Oschersleben | 239.85 mi (386.00 km) |
| Heerlen to Osnabruck | 131.25 mi (211.23 km) |
| Heerlen to Ostbevern | 113.15 mi (182.09 km) |
| Heerlen to Osterburg | 279.54 mi (449.88 km) |
| Heerlen to Ostercappeln | 139.94 mi (225.21 km) |
| Heerlen to Osterhofen | 347.98 mi (560.02 km) |
| Heerlen to Osterholz-Scharmbeck | 200.76 mi (323.09 km) |
| Heerlen to Osternienburg | 267.91 mi (431.16 km) |
| Heerlen to Osterode | 193.39 mi (311.23 km) |
| Heerlen to Osterwieck | 217.18 mi (349.52 km) |
| Heerlen to Ostfildern | 208.01 mi (334.76 km) |
| Heerlen to Osthofen | 131.58 mi (211.75 km) |
| Heerlen to Ostrhauderfehn | 169.22 mi (272.34 km) |
| Heerlen to Ostringen | 166.89 mi (268.58 km) |
