| Fort Lewis to Olivares | 5,403.06 mi (8,695.39 km) |
| Fort Lewis to Olivenza | 5,302.32 mi (8,533.26 km) |
| Fort Lewis to Olot | 5,412.77 mi (8,711.01 km) |
| Fort Lewis to Onate | 5,218.40 mi (8,398.21 km) |
| Fort Lewis to Onda | 5,455.10 mi (8,779.14 km) |
| Fort Lewis to Onteniente | 5,508.15 mi (8,864.52 km) |
| Fort Lewis to Orihuela | 5,538.53 mi (8,913.40 km) |
| Fort Lewis to Osuna | 5,448.74 mi (8,768.89 km) |
| Fort Lewis to Ourense | 5,082.54 mi (8,179.57 km) |
| Fort Lewis to Oviedo | 5,093.51 mi (8,197.21 km) |
| Fort Lewis to Paiporta | 5,480.21 mi (8,819.55 km) |
| Fort Lewis to Pajara | 5,590.10 mi (8,996.40 km) |
| Fort Lewis to Palafolls | 5,449.59 mi (8,770.26 km) |
| Fort Lewis to Palafrugell | 5,447.43 mi (8,766.80 km) |
| Fort Lewis to Palamos | 5,450.53 mi (8,771.78 km) |
