| Burnham-on-Sea to Orbetello | 902.89 mi (1,453.06 km) |
| Burnham-on-Sea to Oria | 1,231.91 mi (1,982.56 km) |
| Burnham-on-Sea to Oristano | 960.32 mi (1,545.48 km) |
| Burnham-on-Sea to Orta Nova | 1,119.82 mi (1,802.18 km) |
| Burnham-on-Sea to Orte | 943.24 mi (1,518.00 km) |
| Burnham-on-Sea to Ortona | 1,022.39 mi (1,645.38 km) |
| Burnham-on-Sea to Orvieto | 920.71 mi (1,481.74 km) |
| Burnham-on-Sea to Orzinuovi | 716.34 mi (1,152.84 km) |
| Burnham-on-Sea to Osimo | 935.62 mi (1,505.74 km) |
| Burnham-on-Sea to Ospitaletto | 714.98 mi (1,150.65 km) |
| Burnham-on-Sea to Ostuni | 1,218.88 mi (1,961.59 km) |
| Burnham-on-Sea to Ottaviano | 1,098.27 mi (1,767.49 km) |
| Burnham-on-Sea to Ovada | 704.33 mi (1,133.51 km) |
| Burnham-on-Sea to Ozieri | 932.57 mi (1,500.83 km) |
| Burnham-on-Sea to Paceco | 1,187.93 mi (1,911.78 km) |
