| Seymour to Opole | 4,724.71 mi (7,603.68 km) |
| Seymour to Orzesze | 4,774.78 mi (7,684.27 km) |
| Seymour to Osowa | 4,593.30 mi (7,392.21 km) |
| Seymour to Ostroda | 4,671.85 mi (7,518.62 km) |
| Seymour to Ostroleka | 4,750.87 mi (7,645.79 km) |
| Seymour to Ostrow Mazowiecka | 4,773.09 mi (7,681.54 km) |
| Seymour to Ostrow Wielkopolski | 4,681.17 mi (7,533.62 km) |
| Seymour to Ostrowiec Swietokrzyski | 4,835.02 mi (7,781.22 km) |
| Seymour to Ostrzeszow | 4,694.57 mi (7,555.19 km) |
| Seymour to Oswiecim | 4,796.18 mi (7,718.70 km) |
| Seymour to Otwock | 4,780.63 mi (7,693.68 km) |
| Seymour to Ozarow Mazowiecki | 4,760.70 mi (7,661.60 km) |
| Seymour to Ozimek | 4,734.39 mi (7,619.26 km) |
| Seymour to Ozorkow | 4,719.27 mi (7,594.94 km) |
| Seymour to Pabianice | 4,735.64 mi (7,621.28 km) |
