| Stamford to Opole | 798.93 mi (1,285.76 km) |
| Stamford to Orzesze | 844.23 mi (1,358.65 km) |
| Stamford to Osowa | 785.33 mi (1,263.87 km) |
| Stamford to Ostroda | 846.97 mi (1,363.07 km) |
| Stamford to Ostroleka | 916.64 mi (1,475.20 km) |
| Stamford to Ostrow Mazowiecka | 932.87 mi (1,501.32 km) |
| Stamford to Ostrow Wielkopolski | 776.80 mi (1,250.14 km) |
| Stamford to Ostrowiec Swietokrzyski | 939.01 mi (1,511.19 km) |
| Stamford to Ostrzeszow | 785.29 mi (1,263.80 km) |
| Stamford to Oswiecim | 866.50 mi (1,394.50 km) |
| Stamford to Otwock | 914.49 mi (1,471.74 km) |
| Stamford to Ozarow Mazowiecki | 893.78 mi (1,438.40 km) |
| Stamford to Ozimek | 810.52 mi (1,304.41 km) |
| Stamford to Ozorkow | 833.73 mi (1,341.76 km) |
| Stamford to Pabianice | 842.39 mi (1,355.70 km) |
