| Fairfield to Orbetello | 6,135.97 mi (9,874.89 km) |
| Fairfield to Oria | 6,428.37 mi (10,345.46 km) |
| Fairfield to Oristano | 6,198.42 mi (9,975.40 km) |
| Fairfield to Orta Nova | 6,327.26 mi (10,182.73 km) |
| Fairfield to Orte | 6,168.68 mi (9,927.53 km) |
| Fairfield to Ortona | 6,231.66 mi (10,028.88 km) |
| Fairfield to Orvieto | 6,146.05 mi (9,891.11 km) |
| Fairfield to Orzinuovi | 5,932.31 mi (9,547.13 km) |
| Fairfield to Osimo | 6,140.73 mi (9,882.55 km) |
| Fairfield to Ospitaletto | 5,927.57 mi (9,539.50 km) |
| Fairfield to Ostuni | 6,413.16 mi (10,320.99 km) |
| Fairfield to Ottaviano | 6,320.99 mi (10,172.66 km) |
| Fairfield to Ovada | 5,937.54 mi (9,555.56 km) |
| Fairfield to Ozieri | 6,173.58 mi (9,935.42 km) |
| Fairfield to Paceco | 6,429.74 mi (10,347.67 km) |
