| Boone to Olivares | 4,057.17 mi (6,529.38 km) |
| Boone to Olivenza | 3,974.90 mi (6,396.99 km) |
| Boone to Olot | 4,336.96 mi (6,979.67 km) |
| Boone to Onate | 4,085.20 mi (6,574.50 km) |
| Boone to Onda | 4,272.97 mi (6,876.68 km) |
| Boone to Onteniente | 4,290.19 mi (6,904.40 km) |
| Boone to Orihuela | 4,295.69 mi (6,913.25 km) |
| Boone to Osuna | 4,114.99 mi (6,622.43 km) |
| Boone to Ourense | 3,845.13 mi (6,188.14 km) |
| Boone to Oviedo | 3,916.32 mi (6,302.71 km) |
| Boone to Paiporta | 4,281.33 mi (6,890.14 km) |
| Boone to Pajara | 3,905.87 mi (6,285.89 km) |
| Boone to Palafolls | 4,364.44 mi (7,023.88 km) |
| Boone to Palafrugell | 4,376.06 mi (7,042.59 km) |
| Boone to Palamos | 4,376.65 mi (7,043.53 km) |
