| Somersworth to Oerlinghausen | 3,565.49 mi (5,738.10 km) |
| Somersworth to Oestrich-Winkel | 3,595.37 mi (5,786.18 km) |
| Somersworth to Offenburg | 3,638.25 mi (5,855.20 km) |
| Somersworth to Oftersheim | 3,637.61 mi (5,854.17 km) |
| Somersworth to Ohrdruf | 3,679.42 mi (5,921.45 km) |
| Somersworth to Ohringen | 3,679.85 mi (5,922.14 km) |
| Somersworth to Olbernhau | 3,785.97 mi (6,092.93 km) |
| Somersworth to Olching | 3,785.09 mi (6,091.52 km) |
| Somersworth to Oldenburg | 3,515.75 mi (5,658.05 km) |
| Somersworth to Oldenburg in Holstein | 3,584.57 mi (5,768.81 km) |
| Somersworth to Olfen | 3,522.24 mi (5,668.50 km) |
| Somersworth to Olpe | 3,559.50 mi (5,728.46 km) |
| Somersworth to Olsberg | 3,575.73 mi (5,754.57 km) |
| Somersworth to Oranienburg | 3,717.18 mi (5,982.23 km) |
| Somersworth to Ortenberg | 3,627.19 mi (5,837.40 km) |
