| Merrick to Olivares | 3,533.72 mi (5,686.97 km) |
| Merrick to Olivenza | 3,449.50 mi (5,551.43 km) |
| Merrick to Olot | 3,802.68 mi (6,119.82 km) |
| Merrick to Onate | 3,551.46 mi (5,715.53 km) |
| Merrick to Onda | 3,741.60 mi (6,021.53 km) |
| Merrick to Onteniente | 3,760.50 mi (6,051.93 km) |
| Merrick to Orihuela | 3,767.30 mi (6,062.88 km) |
| Merrick to Osuna | 3,591.09 mi (5,779.30 km) |
| Merrick to Ourense | 3,313.88 mi (5,333.17 km) |
| Merrick to Oviedo | 3,383.20 mi (5,444.73 km) |
| Merrick to Paiporta | 3,750.71 mi (6,036.18 km) |
| Merrick to Pajara | 3,424.04 mi (5,510.46 km) |
| Merrick to Palafolls | 3,830.42 mi (6,164.47 km) |
| Merrick to Palafrugell | 3,841.79 mi (6,182.76 km) |
| Merrick to Palamos | 3,842.42 mi (6,183.78 km) |
