| Oliveira do Hospital to Opole | 1,427.00 mi (2,296.54 km) |
| Oliveira do Hospital to Orzesze | 1,449.59 mi (2,332.88 km) |
| Oliveira do Hospital to Osowa | 1,553.29 mi (2,499.77 km) |
| Oliveira do Hospital to Ostroda | 1,585.76 mi (2,552.03 km) |
| Oliveira do Hospital to Ostroleka | 1,630.02 mi (2,623.26 km) |
| Oliveira do Hospital to Ostrow Mazowiecka | 1,636.69 mi (2,633.99 km) |
| Oliveira do Hospital to Ostrow Wielkopolski | 1,446.85 mi (2,328.48 km) |
| Oliveira do Hospital to Ostrowiec Swietokrzyski | 1,576.64 mi (2,537.36 km) |
| Oliveira do Hospital to Ostrzeszow | 1,445.45 mi (2,326.22 km) |
| Oliveira do Hospital to Oswiecim | 1,467.28 mi (2,361.35 km) |
| Oliveira do Hospital to Otwock | 1,595.89 mi (2,568.33 km) |
| Oliveira do Hospital to Ozarow Mazowiecki | 1,579.53 mi (2,542.00 km) |
| Oliveira do Hospital to Ozimek | 1,438.68 mi (2,315.34 km) |
| Oliveira do Hospital to Ozorkow | 1,513.17 mi (2,435.22 km) |
| Oliveira do Hospital to Pabianice | 1,509.40 mi (2,429.14 km) |
