| Herisau to Olivares | 1,042.00 mi (1,676.94 km) |
| Herisau to Olivenza | 1,018.57 mi (1,639.24 km) |
| Herisau to Olot | 489.14 mi (787.19 km) |
| Herisau to Onate | 642.33 mi (1,033.74 km) |
| Herisau to Onda | 698.79 mi (1,124.59 km) |
| Herisau to Onteniente | 772.04 mi (1,242.47 km) |
| Herisau to Orihuela | 823.97 mi (1,326.05 km) |
| Herisau to Osuna | 1,012.18 mi (1,628.94 km) |
| Herisau to Ourense | 906.10 mi (1,458.23 km) |
| Herisau to Oviedo | 782.82 mi (1,259.83 km) |
| Herisau to Paiporta | 732.68 mi (1,179.14 km) |
| Herisau to Pajara | 1,817.41 mi (2,924.83 km) |
| Herisau to Palafolls | 508.44 mi (818.25 km) |
| Herisau to Palafrugell | 482.00 mi (775.70 km) |
| Herisau to Palamos | 487.03 mi (783.80 km) |
