| Sieradz to Oberriet | 507.04 mi (816.01 km) |
| Sieradz to Obersiggenthal | 547.49 mi (881.11 km) |
| Sieradz to Oberwil | 574.89 mi (925.19 km) |
| Sieradz to Oberwingert | 528.17 mi (850.01 km) |
| Sieradz to Oftringen | 568.62 mi (915.10 km) |
| Sieradz to Olten | 567.93 mi (913.99 km) |
| Sieradz to Onex | 684.34 mi (1,101.35 km) |
| Sieradz to Opfikon | 539.22 mi (867.78 km) |
| Sieradz to Ostermundigen | 599.55 mi (964.88 km) |
| Sieradz to Payerne | 626.36 mi (1,008.03 km) |
| Sieradz to Pfaffikon | 533.80 mi (859.07 km) |
| Sieradz to Plan-les-Ouates | 684.42 mi (1,101.46 km) |
| Sieradz to Pratteln | 569.12 mi (915.91 km) |
| Sieradz to Prilly | 650.72 mi (1,047.23 km) |
| Sieradz to Pully | 648.88 mi (1,044.27 km) |
