| Imperial Beach to Olivares | 5,871.30 mi (9,448.94 km) |
| Imperial Beach to Olivenza | 5,776.88 mi (9,296.99 km) |
| Imperial Beach to Olot | 6,008.68 mi (9,670.03 km) |
| Imperial Beach to Onate | 5,782.29 mi (9,305.70 km) |
| Imperial Beach to Onda | 6,004.62 mi (9,663.50 km) |
| Imperial Beach to Onteniente | 6,042.56 mi (9,724.56 km) |
| Imperial Beach to Orihuela | 6,061.99 mi (9,755.83 km) |
| Imperial Beach to Osuna | 5,924.50 mi (9,534.57 km) |
| Imperial Beach to Ourense | 5,593.82 mi (9,002.39 km) |
| Imperial Beach to Oviedo | 5,633.15 mi (9,065.68 km) |
| Imperial Beach to Paiporta | 6,022.73 mi (9,692.65 km) |
| Imperial Beach to Pajara | 5,867.35 mi (9,442.59 km) |
| Imperial Beach to Palafolls | 6,042.65 mi (9,724.71 km) |
| Imperial Beach to Palafrugell | 6,046.44 mi (9,730.81 km) |
| Imperial Beach to Palamos | 6,048.55 mi (9,734.20 km) |
