| Amersham to Olivares | 1,021.70 mi (1,644.26 km) |
| Amersham to Olivenza | 950.81 mi (1,530.18 km) |
| Amersham to Olot | 671.89 mi (1,081.30 km) |
| Amersham to Onate | 603.17 mi (970.71 km) |
| Amersham to Onda | 809.56 mi (1,302.85 km) |
| Amersham to Onteniente | 888.18 mi (1,429.39 km) |
| Amersham to Orihuela | 939.22 mi (1,511.53 km) |
| Amersham to Osuna | 1,021.81 mi (1,644.44 km) |
| Amersham to Ourense | 729.58 mi (1,174.14 km) |
| Amersham to Oviedo | 624.14 mi (1,004.45 km) |
| Amersham to Paiporta | 846.38 mi (1,362.12 km) |
| Amersham to Pajara | 1,756.33 mi (2,826.53 km) |
| Amersham to Palafolls | 709.31 mi (1,141.53 km) |
| Amersham to Palafrugell | 697.21 mi (1,122.05 km) |
| Amersham to Palamos | 701.62 mi (1,129.14 km) |
