| Dumbarton to Orthez | 877.23 mi (1,411.77 km) |
| Dumbarton to Orvault | 612.63 mi (985.93 km) |
| Dumbarton to Osny | 551.17 mi (887.02 km) |
| Dumbarton to Ostwald | 726.82 mi (1,169.71 km) |
| Dumbarton to Ouistreham | 494.84 mi (796.37 km) |
| Dumbarton to Oullins | 815.34 mi (1,312.16 km) |
| Dumbarton to Outreau | 442.36 mi (711.91 km) |
| Dumbarton to Oyonnax | 801.47 mi (1,289.83 km) |
| Dumbarton to Ozoir-la-Ferriere | 581.57 mi (935.94 km) |
| Dumbarton to Pace | 551.87 mi (888.15 km) |
| Dumbarton to Palaiseau | 576.13 mi (927.20 km) |
| Dumbarton to Pamiers | 928.07 mi (1,493.58 km) |
| Dumbarton to Panazol | 743.42 mi (1,196.41 km) |
| Dumbarton to Pantin | 568.32 mi (914.62 km) |
| Dumbarton to Paray-le-Monial | 755.09 mi (1,215.20 km) |
