| Spalding to Opole | 785.57 mi (1,264.25 km) |
| Spalding to Orzesze | 831.14 mi (1,337.59 km) |
| Spalding to Osowa | 769.53 mi (1,238.43 km) |
| Spalding to Ostroda | 831.48 mi (1,338.14 km) |
| Spalding to Ostroleka | 901.41 mi (1,450.69 km) |
| Spalding to Ostrow Mazowiecka | 917.76 mi (1,476.99 km) |
| Spalding to Ostrow Wielkopolski | 762.68 mi (1,227.42 km) |
| Spalding to Ostrowiec Swietokrzyski | 924.99 mi (1,488.62 km) |
| Spalding to Ostrzeszow | 771.33 mi (1,241.34 km) |
| Spalding to Oswiecim | 853.42 mi (1,373.44 km) |
| Spalding to Otwock | 899.78 mi (1,448.05 km) |
| Spalding to Ozarow Mazowiecki | 879.04 mi (1,414.67 km) |
| Spalding to Ozimek | 797.11 mi (1,282.82 km) |
| Spalding to Ozorkow | 819.25 mi (1,318.46 km) |
| Spalding to Pabianice | 828.12 mi (1,332.72 km) |
