| Tarpon Springs to Olivares | 4,375.92 mi (7,042.36 km) |
| Tarpon Springs to Olivenza | 4,302.34 mi (6,923.95 km) |
| Tarpon Springs to Olot | 4,714.25 mi (7,586.85 km) |
| Tarpon Springs to Onate | 4,458.61 mi (7,175.45 km) |
| Tarpon Springs to Onda | 4,627.06 mi (7,446.53 km) |
| Tarpon Springs to Onteniente | 4,634.47 mi (7,458.45 km) |
| Tarpon Springs to Orihuela | 4,633.23 mi (7,456.47 km) |
| Tarpon Springs to Osuna | 4,434.82 mi (7,137.16 km) |
| Tarpon Springs to Ourense | 4,202.37 mi (6,763.06 km) |
| Tarpon Springs to Oviedo | 4,285.82 mi (6,897.37 km) |
| Tarpon Springs to Paiporta | 4,630.85 mi (7,452.64 km) |
| Tarpon Springs to Pajara | 4,116.41 mi (6,624.72 km) |
| Tarpon Springs to Palafolls | 4,738.53 mi (7,625.93 km) |
| Tarpon Springs to Palafrugell | 4,752.92 mi (7,649.08 km) |
| Tarpon Springs to Palamos | 4,752.90 mi (7,649.05 km) |
