| Idanha-a-Nova to Nottingham | 945.32 mi (1,521.35 km) |
| Idanha-a-Nova to Nuneaton | 912.84 mi (1,469.07 km) |
| Idanha-a-Nova to Oadby | 923.45 mi (1,486.14 km) |
| Idanha-a-Nova to Oakengates | 911.41 mi (1,466.77 km) |
| Idanha-a-Nova to Oakham | 933.30 mi (1,502.00 km) |
| Idanha-a-Nova to Oldbury | 904.23 mi (1,455.22 km) |
| Idanha-a-Nova to Oldham | 971.62 mi (1,563.68 km) |
| Idanha-a-Nova to Ollerton | 963.18 mi (1,550.10 km) |
| Idanha-a-Nova to Olton | 902.60 mi (1,452.59 km) |
| Idanha-a-Nova to Omagh | 1,013.83 mi (1,631.60 km) |
| Idanha-a-Nova to Ormesby | 1,049.15 mi (1,688.45 km) |
| Idanha-a-Nova to Ormskirk | 964.84 mi (1,552.76 km) |
| Idanha-a-Nova to Orpington | 866.19 mi (1,393.99 km) |
| Idanha-a-Nova to Ossett | 987.05 mi (1,588.50 km) |
| Idanha-a-Nova to Oswaldtwistle | 981.74 mi (1,579.96 km) |
