| Haapsalu to Oestrich-Winkel | 873.99 mi (1,406.55 km) |
| Haapsalu to Offenburg | 960.22 mi (1,545.32 km) |
| Haapsalu to Oftersheim | 892.29 mi (1,436.00 km) |
| Haapsalu to Ohrdruf | 754.62 mi (1,214.44 km) |
| Haapsalu to Ohringen | 877.84 mi (1,412.74 km) |
| Haapsalu to Olbernhau | 699.75 mi (1,126.14 km) |
| Haapsalu to Olching | 892.60 mi (1,436.51 km) |
| Haapsalu to Oldenburg | 711.73 mi (1,145.42 km) |
| Haapsalu to Oldenburg in Holstein | 576.73 mi (928.16 km) |
| Haapsalu to Olfen | 804.16 mi (1,294.18 km) |
| Haapsalu to Olpe | 825.56 mi (1,328.61 km) |
| Haapsalu to Olsberg | 789.57 mi (1,270.68 km) |
| Haapsalu to Oranienburg | 583.87 mi (939.65 km) |
| Haapsalu to Ortenberg | 825.55 mi (1,328.59 km) |
| Haapsalu to Oschatz | 668.14 mi (1,075.27 km) |
