| Triangle to Olivares | 3,773.20 mi (6,072.37 km) |
| Triangle to Olivenza | 3,690.10 mi (5,938.64 km) |
| Triangle to Olot | 4,048.92 mi (6,516.11 km) |
| Triangle to Onate | 3,797.29 mi (6,111.15 km) |
| Triangle to Onda | 3,985.83 mi (6,414.58 km) |
| Triangle to Onteniente | 4,003.68 mi (6,443.31 km) |
| Triangle to Orihuela | 4,009.69 mi (6,452.98 km) |
| Triangle to Osuna | 3,830.83 mi (6,165.13 km) |
| Triangle to Ourense | 3,558.01 mi (5,726.07 km) |
| Triangle to Oviedo | 3,628.58 mi (5,839.64 km) |
| Triangle to Paiporta | 3,994.47 mi (6,428.48 km) |
| Triangle to Pajara | 3,640.96 mi (5,859.56 km) |
| Triangle to Palafolls | 4,076.46 mi (6,560.43 km) |
| Triangle to Palafrugell | 4,088.03 mi (6,579.04 km) |
| Triangle to Palamos | 4,088.62 mi (6,580.00 km) |
