| Sarnen to Opole | 511.66 mi (823.44 km) |
| Sarnen to Orzesze | 530.05 mi (853.03 km) |
| Sarnen to Osowa | 685.15 mi (1,102.64 km) |
| Sarnen to Ostroda | 697.42 mi (1,122.38 km) |
| Sarnen to Ostroleka | 727.57 mi (1,170.90 km) |
| Sarnen to Ostrow Mazowiecka | 730.58 mi (1,175.75 km) |
| Sarnen to Ostrow Wielkopolski | 541.51 mi (871.47 km) |
| Sarnen to Ostrowiec Swietokrzyski | 657.99 mi (1,058.94 km) |
| Sarnen to Ostrzeszow | 537.06 mi (864.31 km) |
| Sarnen to Oswiecim | 547.01 mi (880.33 km) |
| Sarnen to Otwock | 685.10 mi (1,102.56 km) |
| Sarnen to Ozarow Mazowiecki | 670.72 mi (1,079.43 km) |
| Sarnen to Ozimek | 522.83 mi (841.41 km) |
| Sarnen to Ozorkow | 606.20 mi (975.59 km) |
| Sarnen to Pabianice | 599.00 mi (963.99 km) |
