| Somersworth to Opwijk | 3,414.88 mi (5,495.73 km) |
| Somersworth to Ostend | 3,357.31 mi (5,403.06 km) |
| Somersworth to Oud-Heverlee | 3,437.87 mi (5,532.72 km) |
| Somersworth to Oud-Turnhout | 3,437.86 mi (5,532.70 km) |
| Somersworth to Oudenaarde | 3,394.34 mi (5,462.66 km) |
| Somersworth to Oudenburg | 3,361.62 mi (5,410.01 km) |
| Somersworth to Oupeye | 3,480.55 mi (5,601.40 km) |
| Somersworth to Overijse | 3,433.81 mi (5,526.18 km) |
| Somersworth to Overpelt | 3,457.82 mi (5,564.82 km) |
| Somersworth to Paal | 3,452.77 mi (5,556.69 km) |
| Somersworth to Peer | 3,461.52 mi (5,570.78 km) |
| Somersworth to Pepinster | 3,491.40 mi (5,618.86 km) |
| Somersworth to Peruwelz | 3,402.28 mi (5,475.44 km) |
| Somersworth to Perwez | 3,449.41 mi (5,551.30 km) |
| Somersworth to Philippeville | 3,450.02 mi (5,552.28 km) |
