| Constanta to Orthez | 1,458.59 mi (2,347.37 km) |
| Constanta to Orvault | 1,465.76 mi (2,358.92 km) |
| Constanta to Osny | 1,298.19 mi (2,089.23 km) |
| Constanta to Ostwald | 1,038.72 mi (1,671.66 km) |
| Constanta to Ouistreham | 1,403.87 mi (2,259.30 km) |
| Constanta to Oullins | 1,165.76 mi (1,876.11 km) |
| Constanta to Outreau | 1,333.02 mi (2,145.29 km) |
| Constanta to Oyonnax | 1,123.72 mi (1,808.45 km) |
| Constanta to Ozoir-la-Ferriere | 1,268.60 mi (2,041.62 km) |
| Constanta to Pace | 1,470.99 mi (2,367.33 km) |
| Constanta to Palaiseau | 1,287.99 mi (2,072.82 km) |
| Constanta to Pamiers | 1,347.01 mi (2,167.80 km) |
| Constanta to Panazol | 1,333.29 mi (2,145.72 km) |
| Constanta to Pantin | 1,281.90 mi (2,063.02 km) |
| Constanta to Paray-le-Monial | 1,196.69 mi (1,925.89 km) |
