| Acton to Octeville | 143.59 mi (231.08 km) |
| Acton to Oignies | 159.23 mi (256.25 km) |
| Acton to Oissel | 161.57 mi (260.02 km) |
| Acton to Olivet | 270.16 mi (434.79 km) |
| Acton to Ollioules | 645.10 mi (1,038.18 km) |
| Acton to Olonne-sur-Mer | 350.55 mi (564.16 km) |
| Acton to Oloron-Sainte-Marie | 575.02 mi (925.41 km) |
| Acton to Onet Village | 511.25 mi (822.78 km) |
| Acton to Onnaing | 185.46 mi (298.48 km) |
| Acton to Orange | 561.10 mi (903.00 km) |
| Acton to Orchies | 168.84 mi (271.73 km) |
| Acton to Orleans | 267.80 mi (430.98 km) |
| Acton to Orly | 224.77 mi (361.73 km) |
| Acton to Ormesson-sur-Marne | 225.76 mi (363.33 km) |
| Acton to Orsay | 222.92 mi (358.75 km) |
