| Castro Daire to Orthez | 407.73 mi (656.18 km) |
| Castro Daire to Orvault | 539.88 mi (868.86 km) |
| Castro Daire to Osny | 744.69 mi (1,198.46 km) |
| Castro Daire to Ostwald | 929.60 mi (1,496.05 km) |
| Castro Daire to Ouistreham | 688.65 mi (1,108.27 km) |
| Castro Daire to Oullins | 720.69 mi (1,159.84 km) |
| Castro Daire to Outreau | 816.73 mi (1,314.40 km) |
| Castro Daire to Oyonnax | 772.85 mi (1,243.79 km) |
| Castro Daire to Ozoir-la-Ferriere | 751.39 mi (1,209.24 km) |
| Castro Daire to Pace | 585.08 mi (941.59 km) |
| Castro Daire to Palaiseau | 733.93 mi (1,181.14 km) |
| Castro Daire to Pamiers | 513.02 mi (825.63 km) |
| Castro Daire to Panazol | 575.56 mi (926.28 km) |
| Castro Daire to Pantin | 747.75 mi (1,203.39 km) |
| Castro Daire to Paray-le-Monial | 712.87 mi (1,147.25 km) |
