| Holbrook to Olivares | 3,506.56 mi (5,643.26 km) |
| Holbrook to Olivenza | 3,422.32 mi (5,507.70 km) |
| Holbrook to Olot | 3,775.72 mi (6,076.43 km) |
| Holbrook to Onate | 3,524.45 mi (5,672.06 km) |
| Holbrook to Onda | 3,714.48 mi (5,977.88 km) |
| Holbrook to Onteniente | 3,733.34 mi (6,008.23 km) |
| Holbrook to Orihuela | 3,740.13 mi (6,019.15 km) |
| Holbrook to Osuna | 3,563.92 mi (5,735.58 km) |
| Holbrook to Ourense | 3,286.75 mi (5,289.52 km) |
| Holbrook to Oviedo | 3,356.15 mi (5,401.19 km) |
| Holbrook to Paiporta | 3,723.57 mi (5,992.50 km) |
| Holbrook to Pajara | 3,397.96 mi (5,468.49 km) |
| Holbrook to Palafolls | 3,803.43 mi (6,121.04 km) |
| Holbrook to Palafrugell | 3,814.83 mi (6,139.37 km) |
| Holbrook to Palamos | 3,815.46 mi (6,140.38 km) |
