| North Decatur to Olivares | 4,264.72 mi (6,863.40 km) |
| North Decatur to Olivenza | 4,183.86 mi (6,733.27 km) |
| North Decatur to Olot | 4,553.70 mi (7,328.47 km) |
| North Decatur to Onate | 4,301.25 mi (6,922.19 km) |
| North Decatur to Onda | 4,486.50 mi (7,220.32 km) |
| North Decatur to Onteniente | 4,502.25 mi (7,245.68 km) |
| North Decatur to Orihuela | 4,506.69 mi (7,252.82 km) |
| North Decatur to Osuna | 4,322.80 mi (6,956.87 km) |
| North Decatur to Ourense | 4,058.70 mi (6,531.85 km) |
| North Decatur to Oviedo | 4,131.70 mi (6,649.33 km) |
| North Decatur to Paiporta | 4,494.18 mi (7,232.69 km) |
| North Decatur to Pajara | 4,090.30 mi (6,582.70 km) |
| North Decatur to Palafolls | 4,580.79 mi (7,372.07 km) |
| North Decatur to Palafrugell | 4,592.77 mi (7,391.35 km) |
| North Decatur to Palamos | 4,593.28 mi (7,392.17 km) |
