| Arcata to Olivares | 5,757.34 mi (9,265.54 km) |
| Arcata to Olivenza | 5,657.77 mi (9,105.31 km) |
| Arcata to Olot | 5,800.17 mi (9,334.48 km) |
| Arcata to Onate | 5,597.06 mi (9,007.60 km) |
| Arcata to Onda | 5,831.27 mi (9,384.52 km) |
| Arcata to Onteniente | 5,880.71 mi (9,464.10 km) |
| Arcata to Orihuela | 5,908.40 mi (9,508.66 km) |
| Arcata to Osuna | 5,805.35 mi (9,342.81 km) |
| Arcata to Ourense | 5,446.79 mi (8,765.77 km) |
| Arcata to Oviedo | 5,465.33 mi (8,795.60 km) |
| Arcata to Paiporta | 5,854.72 mi (9,422.26 km) |
| Arcata to Pajara | 5,888.30 mi (9,476.31 km) |
| Arcata to Palafolls | 5,836.47 mi (9,392.89 km) |
| Arcata to Palafrugell | 5,835.72 mi (9,391.69 km) |
| Arcata to Palamos | 5,838.60 mi (9,396.32 km) |
