| Great Baddow to Olivares | 1,040.02 mi (1,673.76 km) |
| Great Baddow to Olivenza | 972.41 mi (1,564.95 km) |
| Great Baddow to Olot | 665.46 mi (1,070.95 km) |
| Great Baddow to Onate | 615.38 mi (990.36 km) |
| Great Baddow to Onda | 813.13 mi (1,308.61 km) |
| Great Baddow to Onteniente | 892.70 mi (1,436.66 km) |
| Great Baddow to Orihuela | 944.61 mi (1,520.20 km) |
| Great Baddow to Osuna | 1,037.56 mi (1,669.79 km) |
| Great Baddow to Ourense | 757.61 mi (1,219.25 km) |
| Great Baddow to Oviedo | 648.52 mi (1,043.70 km) |
| Great Baddow to Paiporta | 850.40 mi (1,368.59 km) |
| Great Baddow to Pajara | 1,782.35 mi (2,868.41 km) |
| Great Baddow to Palafolls | 702.38 mi (1,130.37 km) |
| Great Baddow to Palafrugell | 688.65 mi (1,108.27 km) |
| Great Baddow to Palamos | 693.24 mi (1,115.66 km) |
