| Ostrow Mazowiecka to Nottingham | 957.10 mi (1,540.31 km) |
| Ostrow Mazowiecka to Nuneaton | 975.15 mi (1,569.35 km) |
| Ostrow Mazowiecka to Oadby | 958.03 mi (1,541.79 km) |
| Ostrow Mazowiecka to Oakengates | 1,013.60 mi (1,631.24 km) |
| Ostrow Mazowiecka to Oakham | 943.01 mi (1,517.63 km) |
| Ostrow Mazowiecka to Oldbury | 998.02 mi (1,606.16 km) |
| Ostrow Mazowiecka to Oldham | 991.27 mi (1,595.30 km) |
| Ostrow Mazowiecka to Ollerton | 949.36 mi (1,527.85 km) |
| Ostrow Mazowiecka to Olton | 990.21 mi (1,593.58 km) |
| Ostrow Mazowiecka to Omagh | 1,191.80 mi (1,918.02 km) |
| Ostrow Mazowiecka to Ormesby | 948.04 mi (1,525.72 km) |
| Ostrow Mazowiecka to Ormskirk | 1,022.46 mi (1,645.49 km) |
| Ostrow Mazowiecka to Orpington | 927.20 mi (1,492.19 km) |
| Ostrow Mazowiecka to Ossett | 968.36 mi (1,558.43 km) |
| Ostrow Mazowiecka to Oswaldtwistle | 1,000.97 mi (1,610.91 km) |
