| Sigulda to Oerlinghausen | 738.71 mi (1,188.83 km) |
| Sigulda to Oestrich-Winkel | 846.52 mi (1,362.33 km) |
| Sigulda to Offenburg | 922.97 mi (1,485.38 km) |
| Sigulda to Oftersheim | 857.53 mi (1,380.07 km) |
| Sigulda to Ohrdruf | 719.11 mi (1,157.30 km) |
| Sigulda to Ohringen | 837.27 mi (1,347.45 km) |
| Sigulda to Olbernhau | 647.28 mi (1,041.70 km) |
| Sigulda to Olching | 836.45 mi (1,346.14 km) |
| Sigulda to Oldenburg | 711.09 mi (1,144.40 km) |
| Sigulda to Oldenburg in Holstein | 577.38 mi (929.21 km) |
| Sigulda to Olfen | 793.43 mi (1,276.91 km) |
| Sigulda to Olpe | 806.75 mi (1,298.33 km) |
| Sigulda to Olsberg | 770.39 mi (1,239.82 km) |
| Sigulda to Oranienburg | 551.30 mi (887.24 km) |
| Sigulda to Ortenberg | 795.40 mi (1,280.08 km) |
