| Guaynabo to Olivares | 3,822.73 mi (6,152.08 km) |
| Guaynabo to Olivenza | 3,776.30 mi (6,077.37 km) |
| Guaynabo to Olot | 4,288.94 mi (6,902.38 km) |
| Guaynabo to Onate | 4,041.53 mi (6,504.21 km) |
| Guaynabo to Onda | 4,144.94 mi (6,670.64 km) |
| Guaynabo to Onteniente | 4,126.22 mi (6,640.51 km) |
| Guaynabo to Orihuela | 4,107.88 mi (6,611.00 km) |
| Guaynabo to Osuna | 3,879.87 mi (6,244.05 km) |
| Guaynabo to Ourense | 3,761.59 mi (6,053.69 km) |
| Guaynabo to Oviedo | 3,871.58 mi (6,230.70 km) |
| Guaynabo to Paiporta | 4,136.48 mi (6,657.02 km) |
| Guaynabo to Pajara | 3,344.93 mi (5,383.14 km) |
| Guaynabo to Palafolls | 4,302.57 mi (6,924.32 km) |
| Guaynabo to Palafrugell | 4,323.64 mi (6,958.23 km) |
| Guaynabo to Palamos | 4,321.94 mi (6,955.49 km) |
