| Holladay to Olivares | 5,286.89 mi (8,508.42 km) |
| Holladay to Olivenza | 5,190.34 mi (8,353.04 km) |
| Holladay to Olot | 5,396.62 mi (8,685.03 km) |
| Holladay to Onate | 5,175.48 mi (8,329.12 km) |
| Holladay to Onda | 5,401.69 mi (8,693.18 km) |
| Holladay to Onteniente | 5,443.08 mi (8,759.79 km) |
| Holladay to Orihuela | 5,465.07 mi (8,795.17 km) |
| Holladay to Osuna | 5,338.45 mi (8,591.40 km) |
| Holladay to Ourense | 4,997.46 mi (8,042.63 km) |
| Holladay to Oviedo | 5,030.70 mi (8,096.13 km) |
| Holladay to Paiporta | 5,421.38 mi (8,724.87 km) |
| Holladay to Pajara | 5,341.54 mi (8,596.38 km) |
| Holladay to Palafolls | 5,431.24 mi (8,740.74 km) |
| Holladay to Palafrugell | 5,433.96 mi (8,745.12 km) |
| Holladay to Palamos | 5,436.26 mi (8,748.81 km) |
