| Three Lakes to Olivares | 4,338.19 mi (6,981.65 km) |
| Three Lakes to Olivenza | 4,269.24 mi (6,870.68 km) |
| Three Lakes to Olot | 4,704.02 mi (7,570.38 km) |
| Three Lakes to Onate | 4,447.76 mi (7,157.98 km) |
| Three Lakes to Onda | 4,605.21 mi (7,411.37 km) |
| Three Lakes to Onteniente | 4,607.63 mi (7,415.27 km) |
| Three Lakes to Orihuela | 4,603.07 mi (7,407.92 km) |
| Three Lakes to Osuna | 4,397.26 mi (7,076.70 km) |
| Three Lakes to Ourense | 4,184.68 mi (6,734.59 km) |
| Three Lakes to Oviedo | 4,273.94 mi (6,878.24 km) |
| Three Lakes to Paiporta | 4,606.67 mi (7,413.72 km) |
| Three Lakes to Pajara | 4,033.16 mi (6,490.75 km) |
| Three Lakes to Palafolls | 4,726.47 mi (7,606.51 km) |
| Three Lakes to Palafrugell | 4,742.25 mi (7,631.91 km) |
| Three Lakes to Palamos | 4,741.91 mi (7,631.37 km) |
