| Locarno to Opole | 521.01 mi (838.48 km) |
| Locarno to Orzesze | 534.19 mi (859.70 km) |
| Locarno to Osowa | 711.34 mi (1,144.79 km) |
| Locarno to Ostroda | 717.80 mi (1,155.19 km) |
| Locarno to Ostroleka | 742.35 mi (1,194.70 km) |
| Locarno to Ostrow Mazowiecka | 743.63 mi (1,196.76 km) |
| Locarno to Ostrow Wielkopolski | 557.07 mi (896.52 km) |
| Locarno to Ostrowiec Swietokrzyski | 662.49 mi (1,066.18 km) |
| Locarno to Ostrzeszow | 551.01 mi (886.77 km) |
| Locarno to Oswiecim | 549.54 mi (884.40 km) |
| Locarno to Otwock | 695.98 mi (1,120.07 km) |
| Locarno to Ozarow Mazowiecki | 682.90 mi (1,099.03 km) |
| Locarno to Ozimek | 531.56 mi (855.47 km) |
| Locarno to Ozorkow | 620.07 mi (997.91 km) |
| Locarno to Pabianice | 610.97 mi (983.26 km) |
