| Willoughby to Oststeinbek | 4,042.95 mi (6,506.50 km) |
| Willoughby to Ottendorf-Okrilla | 4,258.95 mi (6,854.12 km) |
| Willoughby to Ottersberg | 4,020.85 mi (6,470.93 km) |
| Willoughby to Ottobrunn | 4,292.32 mi (6,907.82 km) |
| Willoughby to Ottweiler | 4,070.19 mi (6,550.34 km) |
| Willoughby to Overath | 4,022.52 mi (6,473.62 km) |
| Willoughby to Oyten | 4,017.30 mi (6,465.22 km) |
| Willoughby to Paderborn | 4,052.07 mi (6,521.17 km) |
| Willoughby to Papenburg | 3,957.75 mi (6,369.38 km) |
| Willoughby to Parchim | 4,106.98 mi (6,609.55 km) |
| Willoughby to Pasewalk | 4,180.76 mi (6,728.29 km) |
| Willoughby to Passau | 4,342.74 mi (6,988.97 km) |
| Willoughby to Pattensen | 4,071.26 mi (6,552.06 km) |
| Willoughby to Pegnitz | 4,225.76 mi (6,800.71 km) |
| Willoughby to Peine | 4,086.63 mi (6,576.80 km) |
