| Barton upon Irwell to Olivares | 1,124.29 mi (1,809.37 km) |
| Barton upon Irwell to Olivenza | 1,046.27 mi (1,683.80 km) |
| Barton upon Irwell to Olot | 811.61 mi (1,306.17 km) |
| Barton upon Irwell to Onate | 721.53 mi (1,161.18 km) |
| Barton upon Irwell to Onda | 938.85 mi (1,510.93 km) |
| Barton upon Irwell to Onteniente | 1,015.87 mi (1,634.88 km) |
| Barton upon Irwell to Orihuela | 1,065.50 mi (1,714.75 km) |
| Barton upon Irwell to Osuna | 1,129.90 mi (1,818.40 km) |
| Barton upon Irwell to Ourense | 810.17 mi (1,303.85 km) |
| Barton upon Irwell to Oviedo | 716.76 mi (1,153.51 km) |
| Barton upon Irwell to Paiporta | 974.93 mi (1,569.00 km) |
| Barton upon Irwell to Pajara | 1,835.54 mi (2,954.01 km) |
| Barton upon Irwell to Palafolls | 849.29 mi (1,366.80 km) |
| Barton upon Irwell to Palafrugell | 838.27 mi (1,349.07 km) |
| Barton upon Irwell to Palamos | 842.56 mi (1,355.97 km) |
