| Costa Mesa to Olivares | 5,854.70 mi (9,422.24 km) |
| Costa Mesa to Olivenza | 5,759.47 mi (9,268.97 km) |
| Costa Mesa to Olot | 5,980.18 mi (9,624.16 km) |
| Costa Mesa to Onate | 5,756.41 mi (9,264.05 km) |
| Costa Mesa to Onda | 5,980.62 mi (9,624.88 km) |
| Costa Mesa to Onteniente | 6,020.10 mi (9,688.41 km) |
| Costa Mesa to Orihuela | 6,040.62 mi (9,721.44 km) |
| Costa Mesa to Osuna | 5,907.33 mi (9,506.94 km) |
| Costa Mesa to Ourense | 5,572.52 mi (8,968.11 km) |
| Costa Mesa to Oviedo | 5,609.26 mi (9,027.23 km) |
| Costa Mesa to Paiporta | 5,999.44 mi (9,655.17 km) |
| Costa Mesa to Pajara | 5,868.15 mi (9,443.87 km) |
| Costa Mesa to Palafolls | 6,014.50 mi (9,679.41 km) |
| Costa Mesa to Palafrugell | 6,017.72 mi (9,684.58 km) |
| Costa Mesa to Palamos | 6,019.93 mi (9,688.14 km) |
