| Troyan to Orvault | 1,313.58 mi (2,114.00 km) |
| Troyan to Osny | 1,163.07 mi (1,871.79 km) |
| Troyan to Ostwald | 906.28 mi (1,458.52 km) |
| Troyan to Ouistreham | 1,268.79 mi (2,041.92 km) |
| Troyan to Oullins | 1,000.97 mi (1,610.90 km) |
| Troyan to Outreau | 1,213.06 mi (1,952.23 km) |
| Troyan to Oyonnax | 964.14 mi (1,551.63 km) |
| Troyan to Ozoir-la-Ferriere | 1,131.41 mi (1,820.83 km) |
| Troyan to Pace | 1,325.69 mi (2,133.48 km) |
| Troyan to Palaiseau | 1,149.79 mi (1,850.41 km) |
| Troyan to Pamiers | 1,163.98 mi (1,873.25 km) |
| Troyan to Panazol | 1,169.75 mi (1,882.53 km) |
| Troyan to Pantin | 1,145.57 mi (1,843.62 km) |
| Troyan to Paray-le-Monial | 1,038.47 mi (1,671.25 km) |
| Troyan to Parempuyre | 1,263.16 mi (2,032.85 km) |
