| Foster City to Olivares | 5,848.94 mi (9,412.96 km) |
| Foster City to Olivenza | 5,750.79 mi (9,255.01 km) |
| Foster City to Olot | 5,923.57 mi (9,533.07 km) |
| Foster City to Onate | 5,712.13 mi (9,192.78 km) |
| Foster City to Onda | 5,943.12 mi (9,564.53 km) |
| Foster City to Onteniente | 5,988.89 mi (9,638.18 km) |
| Foster City to Orihuela | 6,013.90 mi (9,678.44 km) |
| Foster City to Osuna | 5,898.88 mi (9,493.33 km) |
| Foster City to Ourense | 5,548.57 mi (8,929.56 km) |
| Foster City to Oviedo | 5,574.16 mi (8,970.74 km) |
| Foster City to Paiporta | 5,964.87 mi (9,599.53 km) |
| Foster City to Pajara | 5,933.43 mi (9,548.94 km) |
| Foster City to Palafolls | 5,959.22 mi (9,590.43 km) |
| Foster City to Palafrugell | 5,959.96 mi (9,591.63 km) |
| Foster City to Palamos | 5,962.59 mi (9,595.86 km) |
