| Duncan to Orthez | 4,946.39 mi (7,960.44 km) |
| Duncan to Orvault | 4,780.95 mi (7,694.20 km) |
| Duncan to Osny | 4,867.25 mi (7,833.08 km) |
| Duncan to Ostwald | 5,103.03 mi (8,212.54 km) |
| Duncan to Ouistreham | 4,768.73 mi (7,674.53 km) |
| Duncan to Oullins | 5,098.39 mi (8,205.06 km) |
| Duncan to Outreau | 4,792.10 mi (7,712.14 km) |
| Duncan to Oyonnax | 5,111.77 mi (8,226.60 km) |
| Duncan to Ozoir-la-Ferriere | 4,901.28 mi (7,887.85 km) |
| Duncan to Pace | 4,745.74 mi (7,637.54 km) |
| Duncan to Palaiseau | 4,886.57 mi (7,864.17 km) |
| Duncan to Pamiers | 5,062.09 mi (8,146.64 km) |
| Duncan to Panazol | 4,951.08 mi (7,968.00 km) |
| Duncan to Pantin | 4,886.21 mi (7,863.60 km) |
| Duncan to Paray-le-Monial | 5,043.04 mi (8,115.99 km) |
