| Great Falls to Orthez | 4,863.81 mi (7,827.55 km) |
| Great Falls to Orvault | 4,644.16 mi (7,474.06 km) |
| Great Falls to Osny | 4,669.26 mi (7,514.45 km) |
| Great Falls to Ostwald | 4,862.91 mi (7,826.10 km) |
| Great Falls to Ouistreham | 4,586.87 mi (7,381.85 km) |
| Great Falls to Oullins | 4,927.91 mi (7,930.70 km) |
| Great Falls to Outreau | 4,571.39 mi (7,356.94 km) |
| Great Falls to Oyonnax | 4,925.08 mi (7,926.14 km) |
| Great Falls to Ozoir-la-Ferriere | 4,702.45 mi (7,567.86 km) |
| Great Falls to Pace | 4,595.60 mi (7,395.90 km) |
| Great Falls to Palaiseau | 4,692.52 mi (7,551.89 km) |
| Great Falls to Pamiers | 4,962.46 mi (7,986.31 km) |
| Great Falls to Panazol | 4,811.36 mi (7,743.13 km) |
| Great Falls to Pantin | 4,687.90 mi (7,544.45 km) |
| Great Falls to Paray-le-Monial | 4,867.73 mi (7,833.86 km) |
