| Ames to Opole | 1,357.23 mi (2,184.26 km) |
| Ames to Orzesze | 1,385.15 mi (2,229.18 km) |
| Ames to Osowa | 1,457.02 mi (2,344.85 km) |
| Ames to Ostroda | 1,496.76 mi (2,408.81 km) |
| Ames to Ostroleka | 1,547.59 mi (2,490.61 km) |
| Ames to Ostrow Mazowiecka | 1,556.51 mi (2,504.96 km) |
| Ames to Ostrow Wielkopolski | 1,369.15 mi (2,203.44 km) |
| Ames to Ostrowiec Swietokrzyski | 1,509.27 mi (2,428.93 km) |
| Ames to Ostrzeszow | 1,369.74 mi (2,204.38 km) |
| Ames to Oswiecim | 1,404.34 mi (2,260.07 km) |
| Ames to Otwock | 1,519.70 mi (2,445.73 km) |
| Ames to Ozarow Mazowiecki | 1,502.03 mi (2,417.28 km) |
| Ames to Ozimek | 1,369.28 mi (2,203.64 km) |
| Ames to Ozorkow | 1,435.38 mi (2,310.02 km) |
| Ames to Pabianice | 1,434.11 mi (2,307.97 km) |
