| Helena to Orthez | 4,931.74 mi (7,936.87 km) |
| Helena to Orvault | 4,712.89 mi (7,584.66 km) |
| Helena to Osny | 4,738.93 mi (7,626.57 km) |
| Helena to Ostwald | 4,933.18 mi (7,939.19 km) |
| Helena to Ouistreham | 4,656.26 mi (7,493.52 km) |
| Helena to Oullins | 4,997.35 mi (8,042.46 km) |
| Helena to Outreau | 4,641.29 mi (7,469.44 km) |
| Helena to Oyonnax | 4,994.74 mi (8,038.26 km) |
| Helena to Ozoir-la-Ferriere | 4,772.15 mi (7,680.03 km) |
| Helena to Pace | 4,664.51 mi (7,506.80 km) |
| Helena to Palaiseau | 4,762.15 mi (7,663.95 km) |
| Helena to Pamiers | 5,030.79 mi (8,096.27 km) |
| Helena to Panazol | 4,880.26 mi (7,854.02 km) |
| Helena to Pantin | 4,757.59 mi (7,656.60 km) |
| Helena to Paray-le-Monial | 4,937.21 mi (7,945.68 km) |
