| Amadora to Opole | 1,554.96 mi (2,502.47 km) |
| Amadora to Orzesze | 1,576.25 mi (2,536.72 km) |
| Amadora to Osowa | 1,685.74 mi (2,712.94 km) |
| Amadora to Ostroda | 1,717.16 mi (2,763.51 km) |
| Amadora to Ostroleka | 1,760.26 mi (2,832.86 km) |
| Amadora to Ostrow Mazowiecka | 1,766.49 mi (2,842.89 km) |
| Amadora to Ostrow Wielkopolski | 1,576.44 mi (2,537.04 km) |
| Amadora to Ostrowiec Swietokrzyski | 1,703.75 mi (2,741.93 km) |
| Amadora to Ostrzeszow | 1,574.65 mi (2,534.15 km) |
| Amadora to Oswiecim | 1,593.52 mi (2,564.53 km) |
| Amadora to Otwock | 1,724.94 mi (2,776.03 km) |
| Amadora to Ozarow Mazowiecki | 1,708.88 mi (2,750.17 km) |
| Amadora to Ozimek | 1,566.54 mi (2,521.10 km) |
| Amadora to Ozorkow | 1,642.68 mi (2,643.64 km) |
| Amadora to Pabianice | 1,638.40 mi (2,636.75 km) |
