| Opoczno to Orthez | 1,119.32 mi (1,801.37 km) |
| Opoczno to Orvault | 1,022.25 mi (1,645.15 km) |
| Opoczno to Osny | 819.21 mi (1,318.39 km) |
| Opoczno to Ostwald | 591.06 mi (951.21 km) |
| Opoczno to Ouistreham | 914.62 mi (1,471.93 km) |
| Opoczno to Oullins | 806.62 mi (1,298.13 km) |
| Opoczno to Outreau | 811.22 mi (1,305.53 km) |
| Opoczno to Oyonnax | 751.99 mi (1,210.21 km) |
| Opoczno to Ozoir-la-Ferriere | 798.98 mi (1,285.83 km) |
| Opoczno to Pace | 1,005.43 mi (1,618.09 km) |
| Opoczno to Palaiseau | 819.09 mi (1,318.19 km) |
| Opoczno to Pamiers | 1,040.88 mi (1,675.14 km) |
| Opoczno to Panazol | 944.10 mi (1,519.38 km) |
| Opoczno to Pantin | 808.21 mi (1,300.69 km) |
| Opoczno to Paray-le-Monial | 806.91 mi (1,298.60 km) |
