| Waterville to Olivares | 3,265.33 mi (5,255.03 km) |
| Waterville to Olivenza | 3,177.51 mi (5,113.71 km) |
| Waterville to Olot | 3,505.51 mi (5,641.58 km) |
| Waterville to Onate | 3,257.17 mi (5,241.91 km) |
| Waterville to Onda | 3,454.86 mi (5,560.06 km) |
| Waterville to Onteniente | 3,478.11 mi (5,597.48 km) |
| Waterville to Orihuela | 3,487.99 mi (5,613.37 km) |
| Waterville to Osuna | 3,321.65 mi (5,345.68 km) |
| Waterville to Ourense | 3,028.43 mi (4,873.79 km) |
| Waterville to Oviedo | 3,091.59 mi (4,975.43 km) |
| Waterville to Paiporta | 3,465.98 mi (5,577.95 km) |
| Waterville to Pajara | 3,215.89 mi (5,175.47 km) |
| Waterville to Palafolls | 3,534.48 mi (5,688.19 km) |
| Waterville to Palafrugell | 3,544.63 mi (5,704.54 km) |
| Waterville to Palamos | 3,545.52 mi (5,705.96 km) |
