| Herisau to Opole | 453.06 mi (729.13 km) |
| Herisau to Orzesze | 471.85 mi (759.37 km) |
| Herisau to Osowa | 629.57 mi (1,013.19 km) |
| Herisau to Ostroda | 640.02 mi (1,030.02 km) |
| Herisau to Ostroleka | 669.22 mi (1,077.01 km) |
| Herisau to Ostrow Mazowiecka | 672.08 mi (1,081.61 km) |
| Herisau to Ostrow Wielkopolski | 483.18 mi (777.60 km) |
| Herisau to Ostrowiec Swietokrzyski | 599.67 mi (965.08 km) |
| Herisau to Ostrzeszow | 478.57 mi (770.19 km) |
| Herisau to Oswiecim | 489.04 mi (787.03 km) |
| Herisau to Otwock | 626.49 mi (1,008.24 km) |
| Herisau to Ozarow Mazowiecki | 612.16 mi (985.18 km) |
| Herisau to Ozimek | 464.24 mi (747.13 km) |
| Herisau to Ozorkow | 547.74 mi (881.50 km) |
| Herisau to Pabianice | 540.41 mi (869.71 km) |
