| Ardrossan to Orthez | 858.74 mi (1,382.02 km) |
| Ardrossan to Orvault | 594.30 mi (956.44 km) |
| Ardrossan to Osny | 538.92 mi (867.31 km) |
| Ardrossan to Ostwald | 720.99 mi (1,160.32 km) |
| Ardrossan to Ouistreham | 479.39 mi (771.51 km) |
| Ardrossan to Oullins | 803.24 mi (1,292.69 km) |
| Ardrossan to Outreau | 431.83 mi (694.96 km) |
| Ardrossan to Oyonnax | 790.73 mi (1,272.56 km) |
| Ardrossan to Ozoir-la-Ferriere | 569.86 mi (917.10 km) |
| Ardrossan to Pace | 533.68 mi (858.87 km) |
| Ardrossan to Palaiseau | 563.75 mi (907.27 km) |
| Ardrossan to Pamiers | 911.48 mi (1,466.88 km) |
| Ardrossan to Panazol | 727.66 mi (1,171.05 km) |
| Ardrossan to Pantin | 556.36 mi (895.37 km) |
| Ardrossan to Paray-le-Monial | 742.84 mi (1,195.49 km) |
