| Ipswich to Orbetello | 813.39 mi (1,309.03 km) |
| Ipswich to Oria | 1,116.15 mi (1,796.27 km) |
| Ipswich to Oristano | 911.32 mi (1,466.62 km) |
| Ipswich to Orta Nova | 1,008.89 mi (1,623.65 km) |
| Ipswich to Orte | 844.86 mi (1,359.68 km) |
| Ipswich to Ortona | 911.85 mi (1,467.47 km) |
| Ipswich to Orvieto | 822.23 mi (1,323.25 km) |
| Ipswich to Orzinuovi | 608.84 mi (979.83 km) |
| Ipswich to Osimo | 821.76 mi (1,322.50 km) |
| Ipswich to Ospitaletto | 604.62 mi (973.04 km) |
| Ipswich to Ostuni | 1,101.98 mi (1,773.46 km) |
| Ipswich to Ottaviano | 997.72 mi (1,605.68 km) |
| Ipswich to Ovada | 616.66 mi (992.42 km) |
| Ipswich to Ozieri | 875.58 mi (1,409.11 km) |
| Ipswich to Paceco | 1,117.49 mi (1,798.42 km) |
