| Watertown Town to Orthez | 3,450.77 mi (5,553.47 km) |
| Watertown Town to Orvault | 3,311.03 mi (5,328.59 km) |
| Watertown Town to Osny | 3,424.16 mi (5,510.65 km) |
| Watertown Town to Ostwald | 3,674.10 mi (5,912.89 km) |
| Watertown Town to Ouistreham | 3,320.80 mi (5,344.31 km) |
| Watertown Town to Oullins | 3,634.38 mi (5,848.97 km) |
| Watertown Town to Outreau | 3,364.22 mi (5,414.19 km) |
| Watertown Town to Oyonnax | 3,654.95 mi (5,882.07 km) |
| Watertown Town to Ozoir-la-Ferriere | 3,457.42 mi (5,564.18 km) |
| Watertown Town to Pace | 3,283.02 mi (5,283.51 km) |
| Watertown Town to Palaiseau | 3,440.74 mi (5,537.33 km) |
| Watertown Town to Pamiers | 3,570.04 mi (5,745.42 km) |
| Watertown Town to Panazol | 3,477.59 mi (5,596.64 km) |
| Watertown Town to Pantin | 3,442.61 mi (5,540.35 km) |
| Watertown Town to Paray-le-Monial | 3,582.90 mi (5,766.12 km) |
