| Aveiro to Opole | 1,447.91 mi (2,330.18 km) |
| Aveiro to Orzesze | 1,471.77 mi (2,368.58 km) |
| Aveiro to Osowa | 1,567.60 mi (2,522.80 km) |
| Aveiro to Ostroda | 1,602.06 mi (2,578.26 km) |
| Aveiro to Ostroleka | 1,648.06 mi (2,652.29 km) |
| Aveiro to Ostrow Mazowiecka | 1,655.30 mi (2,663.95 km) |
| Aveiro to Ostrow Wielkopolski | 1,465.87 mi (2,359.09 km) |
| Aveiro to Ostrowiec Swietokrzyski | 1,598.29 mi (2,572.20 km) |
| Aveiro to Ostrzeszow | 1,464.95 mi (2,357.61 km) |
| Aveiro to Oswiecim | 1,489.82 mi (2,397.64 km) |
| Aveiro to Otwock | 1,615.45 mi (2,599.82 km) |
| Aveiro to Ozarow Mazowiecki | 1,598.75 mi (2,572.94 km) |
| Aveiro to Ozimek | 1,459.69 mi (2,349.15 km) |
| Aveiro to Ozorkow | 1,532.25 mi (2,465.91 km) |
| Aveiro to Pabianice | 1,529.08 mi (2,460.82 km) |
