| Boston to Orthez | 656.31 mi (1,056.23 km) |
| Boston to Orvault | 400.30 mi (644.21 km) |
| Boston to Osny | 285.22 mi (459.01 km) |
| Boston to Ostwald | 455.25 mi (732.65 km) |
| Boston to Ouistreham | 255.49 mi (411.17 km) |
| Boston to Oullins | 546.33 mi (879.24 km) |
| Boston to Outreau | 171.33 mi (275.72 km) |
| Boston to Oyonnax | 528.79 mi (851.01 km) |
| Boston to Ozoir-la-Ferriere | 312.87 mi (503.51 km) |
| Boston to Pace | 342.19 mi (550.70 km) |
| Boston to Palaiseau | 310.44 mi (499.60 km) |
| Boston to Pamiers | 685.21 mi (1,102.73 km) |
| Boston to Panazol | 496.58 mi (799.18 km) |
| Boston to Pantin | 300.78 mi (484.07 km) |
| Boston to Paray-le-Monial | 486.98 mi (783.71 km) |
