| Havant to Opole | 824.67 mi (1,327.17 km) |
| Havant to Orzesze | 866.04 mi (1,393.76 km) |
| Havant to Osowa | 849.14 mi (1,366.56 km) |
| Havant to Ostroda | 903.75 mi (1,454.44 km) |
| Havant to Ostroleka | 968.10 mi (1,558.01 km) |
| Havant to Ostrow Mazowiecka | 982.19 mi (1,580.68 km) |
| Havant to Ostrow Wielkopolski | 812.67 mi (1,307.87 km) |
| Havant to Ostrowiec Swietokrzyski | 971.82 mi (1,563.99 km) |
| Havant to Ostrzeszow | 818.83 mi (1,317.78 km) |
| Havant to Oswiecim | 888.04 mi (1,429.16 km) |
| Havant to Otwock | 957.56 mi (1,541.05 km) |
| Havant to Ozarow Mazowiecki | 937.43 mi (1,508.64 km) |
| Havant to Ozimek | 836.73 mi (1,346.58 km) |
| Havant to Ozorkow | 874.00 mi (1,406.57 km) |
| Havant to Pabianice | 879.68 mi (1,415.70 km) |
