| Wausau to Olivares | 4,177.45 mi (6,722.95 km) |
| Wausau to Olivenza | 4,084.32 mi (6,573.08 km) |
| Wausau to Olot | 4,348.53 mi (6,998.29 km) |
| Wausau to Onate | 4,112.48 mi (6,618.39 km) |
| Wausau to Onda | 4,327.41 mi (6,964.29 km) |
| Wausau to Onteniente | 4,360.63 mi (7,017.76 km) |
| Wausau to Orihuela | 4,377.12 mi (7,044.29 km) |
| Wausau to Osuna | 4,231.44 mi (6,809.84 km) |
| Wausau to Ourense | 3,909.80 mi (6,292.22 km) |
| Wausau to Oviedo | 3,956.81 mi (6,367.87 km) |
| Wausau to Paiporta | 4,343.25 mi (6,989.78 km) |
| Wausau to Pajara | 4,186.69 mi (6,737.83 km) |
| Wausau to Palafolls | 4,380.81 mi (7,050.24 km) |
| Wausau to Palafrugell | 4,387.09 mi (7,060.34 km) |
| Wausau to Palamos | 4,388.74 mi (7,062.99 km) |
