| Wheaton to Olivares | 4,199.38 mi (6,758.26 km) |
| Wheaton to Olivenza | 4,109.18 mi (6,613.09 km) |
| Wheaton to Olot | 4,404.63 mi (7,088.56 km) |
| Wheaton to Onate | 4,162.70 mi (6,699.22 km) |
| Wheaton to Onda | 4,370.39 mi (7,033.47 km) |
| Wheaton to Onteniente | 4,398.87 mi (7,079.29 km) |
| Wheaton to Orihuela | 4,412.05 mi (7,100.50 km) |
| Wheaton to Osuna | 4,254.83 mi (6,847.48 km) |
| Wheaton to Ourense | 3,947.59 mi (6,353.02 km) |
| Wheaton to Oviedo | 4,002.23 mi (6,440.97 km) |
| Wheaton to Paiporta | 4,384.01 mi (7,055.39 km) |
| Wheaton to Pajara | 4,157.30 mi (6,690.53 km) |
| Wheaton to Palafolls | 4,435.61 mi (7,138.42 km) |
| Wheaton to Palafrugell | 4,443.53 mi (7,151.16 km) |
| Wheaton to Palamos | 4,444.86 mi (7,153.31 km) |
