| Somerville to Opole | 4,010.07 mi (6,453.59 km) |
| Somerville to Orzesze | 4,059.04 mi (6,532.39 km) |
| Somerville to Osowa | 3,905.50 mi (6,285.29 km) |
| Somerville to Ostroda | 3,982.74 mi (6,409.61 km) |
| Somerville to Ostroleka | 4,061.70 mi (6,536.67 km) |
| Somerville to Ostrow Mazowiecka | 4,083.02 mi (6,570.98 km) |
| Somerville to Ostrow Wielkopolski | 3,972.54 mi (6,393.18 km) |
| Somerville to Ostrowiec Swietokrzyski | 4,131.27 mi (6,648.64 km) |
| Somerville to Ostrzeszow | 3,984.72 mi (6,412.79 km) |
| Somerville to Oswiecim | 4,080.97 mi (6,567.69 km) |
| Somerville to Otwock | 4,084.21 mi (6,572.90 km) |
| Somerville to Ozarow Mazowiecki | 4,063.66 mi (6,539.83 km) |
| Somerville to Ozimek | 4,020.51 mi (6,470.39 km) |
| Somerville to Ozorkow | 4,016.52 mi (6,463.96 km) |
| Somerville to Pabianice | 4,031.07 mi (6,487.38 km) |
