| North Hykeham to Opole | 805.64 mi (1,296.55 km) |
| North Hykeham to Orzesze | 851.88 mi (1,370.98 km) |
| North Hykeham to Osowa | 779.92 mi (1,255.16 km) |
| North Hykeham to Ostroda | 843.70 mi (1,357.81 km) |
| North Hykeham to Ostroleka | 914.89 mi (1,472.37 km) |
| North Hykeham to Ostrow Mazowiecka | 931.76 mi (1,499.53 km) |
| North Hykeham to Ostrow Wielkopolski | 780.55 mi (1,256.18 km) |
| North Hykeham to Ostrowiec Swietokrzyski | 943.05 mi (1,517.70 km) |
| North Hykeham to Ostrzeszow | 789.71 mi (1,270.92 km) |
| North Hykeham to Oswiecim | 874.16 mi (1,406.82 km) |
| North Hykeham to Otwock | 915.44 mi (1,473.26 km) |
| North Hykeham to Ozarow Mazowiecki | 894.62 mi (1,439.75 km) |
| North Hykeham to Ozimek | 817.03 mi (1,314.89 km) |
| North Hykeham to Ozorkow | 835.86 mi (1,345.19 km) |
| North Hykeham to Pabianice | 845.42 mi (1,360.57 km) |
