| Fort Pierce to Olivares | 4,272.92 mi (6,876.60 km) |
| Fort Pierce to Olivenza | 4,201.77 mi (6,762.09 km) |
| Fort Pierce to Olot | 4,626.57 mi (7,445.74 km) |
| Fort Pierce to Onate | 4,370.45 mi (7,033.57 km) |
| Fort Pierce to Onda | 4,532.78 mi (7,294.81 km) |
| Fort Pierce to Onteniente | 4,537.45 mi (7,302.32 km) |
| Fort Pierce to Orihuela | 4,534.40 mi (7,297.41 km) |
| Fort Pierce to Osuna | 4,331.94 mi (6,971.58 km) |
| Fort Pierce to Ourense | 4,110.20 mi (6,614.73 km) |
| Fort Pierce to Oviedo | 4,196.99 mi (6,754.40 km) |
| Fort Pierce to Paiporta | 4,535.29 mi (7,298.84 km) |
| Fort Pierce to Pajara | 3,991.10 mi (6,423.05 km) |
| Fort Pierce to Palafolls | 4,649.81 mi (7,483.15 km) |
| Fort Pierce to Palafrugell | 4,665.01 mi (7,507.60 km) |
| Fort Pierce to Palamos | 4,664.80 mi (7,507.27 km) |
