| Somersworth to Opole | 3,962.44 mi (6,376.93 km) |
| Somersworth to Orzesze | 4,011.55 mi (6,455.96 km) |
| Somersworth to Osowa | 3,855.30 mi (6,204.50 km) |
| Somersworth to Ostroda | 3,932.70 mi (6,329.06 km) |
| Somersworth to Ostroleka | 4,011.70 mi (6,456.21 km) |
| Somersworth to Ostrow Mazowiecka | 4,033.11 mi (6,490.66 km) |
| Somersworth to Ostrow Wielkopolski | 3,924.27 mi (6,315.51 km) |
| Somersworth to Ostrowiec Swietokrzyski | 4,082.62 mi (6,570.35 km) |
| Somersworth to Ostrzeszow | 3,936.59 mi (6,335.33 km) |
| Somersworth to Oswiecim | 4,033.44 mi (6,491.19 km) |
| Somersworth to Otwock | 4,034.86 mi (6,493.47 km) |
| Somersworth to Ozarow Mazowiecki | 4,014.35 mi (6,460.48 km) |
| Somersworth to Ozimek | 3,972.81 mi (6,393.61 km) |
| Somersworth to Ozorkow | 3,967.71 mi (6,385.41 km) |
| Somersworth to Pabianice | 3,982.44 mi (6,409.12 km) |
