| Watervliet to Olivares | 3,494.77 mi (5,624.30 km) |
| Watervliet to Olivenza | 3,408.05 mi (5,484.73 km) |
| Watervliet to Olot | 3,742.33 mi (6,022.69 km) |
| Watervliet to Onate | 3,493.43 mi (5,622.13 km) |
| Watervliet to Onda | 3,689.56 mi (5,937.77 km) |
| Watervliet to Onteniente | 3,711.74 mi (5,973.46 km) |
| Watervliet to Orihuela | 3,720.79 mi (5,988.04 km) |
| Watervliet to Osuna | 3,551.46 mi (5,715.52 km) |
| Watervliet to Ourense | 3,262.69 mi (5,250.79 km) |
| Watervliet to Oviedo | 3,327.28 mi (5,354.73 km) |
| Watervliet to Paiporta | 3,700.19 mi (5,954.88 km) |
| Watervliet to Pajara | 3,421.04 mi (5,505.64 km) |
| Watervliet to Palafolls | 3,771.09 mi (6,068.98 km) |
| Watervliet to Palafrugell | 3,781.45 mi (6,085.66 km) |
| Watervliet to Palamos | 3,782.29 mi (6,087.01 km) |
