| Hermiston to Olivares | 5,346.74 mi (8,604.74 km) |
| Hermiston to Olivenza | 5,246.74 mi (8,443.81 km) |
| Hermiston to Olot | 5,381.67 mi (8,660.97 km) |
| Hermiston to Onate | 5,179.90 mi (8,336.25 km) |
| Hermiston to Onda | 5,414.67 mi (8,714.07 km) |
| Hermiston to Onteniente | 5,464.94 mi (8,794.97 km) |
| Hermiston to Orihuela | 5,493.29 mi (8,840.60 km) |
| Hermiston to Osuna | 5,394.01 mi (8,680.82 km) |
| Hermiston to Ourense | 5,033.01 mi (8,099.84 km) |
| Hermiston to Oviedo | 5,049.60 mi (8,126.54 km) |
| Hermiston to Paiporta | 5,438.49 mi (8,752.40 km) |
| Hermiston to Pajara | 5,501.93 mi (8,854.50 km) |
| Hermiston to Palafolls | 5,418.04 mi (8,719.49 km) |
| Hermiston to Palafrugell | 5,417.12 mi (8,718.02 km) |
| Hermiston to Palamos | 5,420.02 mi (8,722.69 km) |
