| Mission to Olivares | 5,253.84 mi (8,455.25 km) |
| Mission to Olivenza | 5,172.93 mi (8,325.03 km) |
| Mission to Olot | 5,535.05 mi (8,907.81 km) |
| Mission to Onate | 5,284.12 mi (8,503.96 km) |
| Mission to Onda | 5,473.04 mi (8,808.01 km) |
| Mission to Onteniente | 5,490.09 mi (8,835.44 km) |
| Mission to Orihuela | 5,495.15 mi (8,843.59 km) |
| Mission to Osuna | 5,311.94 mi (8,548.74 km) |
| Mission to Ourense | 5,045.20 mi (8,119.47 km) |
| Mission to Oviedo | 5,115.79 mi (8,233.06 km) |
| Mission to Paiporta | 5,481.38 mi (8,821.44 km) |
| Mission to Pajara | 5,057.24 mi (8,138.84 km) |
| Mission to Palafolls | 5,562.98 mi (8,952.75 km) |
| Mission to Palafrugell | 5,574.17 mi (8,970.77 km) |
| Mission to Palamos | 5,574.85 mi (8,971.86 km) |
