| Glassboro to Opole | 4,289.56 mi (6,903.38 km) |
| Glassboro to Orzesze | 4,338.55 mi (6,982.22 km) |
| Glassboro to Osowa | 4,183.84 mi (6,733.25 km) |
| Glassboro to Ostroda | 4,261.20 mi (6,857.74 km) |
| Glassboro to Ostroleka | 4,340.19 mi (6,984.87 km) |
| Glassboro to Ostrow Mazowiecka | 4,361.58 mi (7,019.28 km) |
| Glassboro to Ostrow Wielkopolski | 4,251.88 mi (6,842.74 km) |
| Glassboro to Ostrowiec Swietokrzyski | 4,410.49 mi (7,097.99 km) |
| Glassboro to Ostrzeszow | 4,264.10 mi (6,862.41 km) |
| Glassboro to Oswiecim | 4,360.48 mi (7,017.51 km) |
| Glassboro to Otwock | 4,363.10 mi (7,021.73 km) |
| Glassboro to Ozarow Mazowiecki | 4,342.58 mi (6,988.70 km) |
| Glassboro to Ozimek | 4,299.99 mi (6,920.16 km) |
| Glassboro to Ozorkow | 4,295.67 mi (6,913.21 km) |
| Glassboro to Pabianice | 4,310.29 mi (6,936.74 km) |
