| Eau Claire to Olivares | 4,263.40 mi (6,861.28 km) |
| Eau Claire to Olivenza | 4,169.91 mi (6,710.82 km) |
| Eau Claire to Olot | 4,428.88 mi (7,127.60 km) |
| Eau Claire to Onate | 4,194.03 mi (6,749.64 km) |
| Eau Claire to Onda | 4,410.14 mi (7,097.44 km) |
| Eau Claire to Onteniente | 4,444.14 mi (7,152.15 km) |
| Eau Claire to Orihuela | 4,461.14 mi (7,179.51 km) |
| Eau Claire to Osuna | 4,317.18 mi (6,947.83 km) |
| Eau Claire to Ourense | 3,993.56 mi (6,427.01 km) |
| Eau Claire to Oviedo | 4,039.29 mi (6,500.60 km) |
| Eau Claire to Paiporta | 4,426.34 mi (7,123.51 km) |
| Eau Claire to Pajara | 4,277.16 mi (6,883.43 km) |
| Eau Claire to Palafolls | 4,461.40 mi (7,179.93 km) |
| Eau Claire to Palafrugell | 4,467.36 mi (7,189.52 km) |
| Eau Claire to Palamos | 4,469.06 mi (7,192.26 km) |
