| Willoughby to Orthez | 3,934.13 mi (6,331.37 km) |
| Willoughby to Orvault | 3,778.43 mi (6,080.80 km) |
| Willoughby to Osny | 3,876.58 mi (6,238.74 km) |
| Willoughby to Ostwald | 4,119.62 mi (6,629.89 km) |
| Willoughby to Ouistreham | 3,775.60 mi (6,076.24 km) |
| Willoughby to Oullins | 4,099.07 mi (6,596.81 km) |
| Willoughby to Outreau | 3,808.12 mi (6,128.58 km) |
| Willoughby to Oyonnax | 4,115.62 mi (6,623.46 km) |
| Willoughby to Ozoir-la-Ferriere | 3,910.36 mi (6,293.12 km) |
| Willoughby to Pace | 3,746.15 mi (6,028.85 km) |
| Willoughby to Palaiseau | 3,894.72 mi (6,267.94 km) |
| Willoughby to Pamiers | 4,051.29 mi (6,519.92 km) |
| Willoughby to Panazol | 3,947.45 mi (6,352.80 km) |
| Willoughby to Pantin | 3,895.37 mi (6,268.99 km) |
| Willoughby to Paray-le-Monial | 4,045.27 mi (6,510.24 km) |
