| Newburyport to Opole | 3,982.63 mi (6,409.42 km) |
| Newburyport to Orzesze | 4,031.65 mi (6,488.31 km) |
| Newburyport to Osowa | 3,877.07 mi (6,239.55 km) |
| Newburyport to Ostroda | 3,954.38 mi (6,363.96 km) |
| Newburyport to Ostroleka | 4,033.35 mi (6,491.05 km) |
| Newburyport to Ostrow Mazowiecka | 4,054.71 mi (6,525.42 km) |
| Newburyport to Ostrow Wielkopolski | 3,944.85 mi (6,348.62 km) |
| Newburyport to Ostrowiec Swietokrzyski | 4,103.44 mi (6,603.84 km) |
| Newburyport to Ostrzeszow | 3,957.08 mi (6,368.31 km) |
| Newburyport to Oswiecim | 4,053.57 mi (6,523.58 km) |
| Newburyport to Otwock | 4,056.10 mi (6,527.67 km) |
| Newburyport to Ozarow Mazowiecki | 4,035.57 mi (6,494.63 km) |
| Newburyport to Ozimek | 3,993.04 mi (6,426.17 km) |
| Newburyport to Ozorkow | 3,988.62 mi (6,419.06 km) |
| Newburyport to Pabianice | 4,003.24 mi (6,442.59 km) |
