| Calexico to Olivares | 5,795.23 mi (9,326.52 km) |
| Calexico to Olivenza | 5,701.37 mi (9,175.47 km) |
| Calexico to Olot | 5,941.14 mi (9,561.34 km) |
| Calexico to Onate | 5,712.79 mi (9,193.85 km) |
| Calexico to Onda | 5,933.65 mi (9,549.29 km) |
| Calexico to Onteniente | 5,970.46 mi (9,608.53 km) |
| Calexico to Orihuela | 5,989.10 mi (9,638.53 km) |
| Calexico to Osuna | 5,848.80 mi (9,412.74 km) |
| Calexico to Ourense | 5,521.02 mi (8,885.23 km) |
| Calexico to Oviedo | 5,562.21 mi (8,951.52 km) |
| Calexico to Paiporta | 5,951.23 mi (9,577.58 km) |
| Calexico to Pajara | 5,781.67 mi (9,304.70 km) |
| Calexico to Palafolls | 5,974.83 mi (9,615.56 km) |
| Calexico to Palafrugell | 5,979.08 mi (9,622.40 km) |
| Calexico to Palamos | 5,981.10 mi (9,625.65 km) |
