| Hammerfest to Orbetello | 1,997.81 mi (3,215.16 km) |
| Hammerfest to Oria | 2,095.11 mi (3,371.75 km) |
| Hammerfest to Oristano | 2,192.00 mi (3,527.69 km) |
| Hammerfest to Orta Nova | 2,046.01 mi (3,292.74 km) |
| Hammerfest to Orte | 1,987.92 mi (3,199.25 km) |
| Hammerfest to Ortona | 1,982.85 mi (3,191.08 km) |
| Hammerfest to Orvieto | 1,972.18 mi (3,173.92 km) |
| Hammerfest to Orzinuovi | 1,806.34 mi (2,907.02 km) |
| Hammerfest to Osimo | 1,910.60 mi (3,074.81 km) |
| Hammerfest to Ospitaletto | 1,794.57 mi (2,888.08 km) |
| Hammerfest to Ostuni | 2,079.21 mi (3,346.16 km) |
| Hammerfest to Ottaviano | 2,085.44 mi (3,356.20 km) |
| Hammerfest to Ovada | 1,869.56 mi (3,008.77 km) |
| Hammerfest to Ozieri | 2,142.16 mi (3,447.48 km) |
| Hammerfest to Paceco | 2,293.73 mi (3,691.40 km) |
