| Willowbrook to Oerlinghausen | 5,692.08 mi (9,160.51 km) |
| Willowbrook to Oestrich-Winkel | 5,773.29 mi (9,291.22 km) |
| Willowbrook to Offenburg | 5,849.61 mi (9,414.04 km) |
| Willowbrook to Oftersheim | 5,823.08 mi (9,371.34 km) |
| Willowbrook to Ohrdruf | 5,809.93 mi (9,350.19 km) |
| Willowbrook to Ohringen | 5,859.26 mi (9,429.57 km) |
| Willowbrook to Olbernhau | 5,890.83 mi (9,480.38 km) |
| Willowbrook to Olching | 5,965.62 mi (9,600.73 km) |
| Willowbrook to Oldenburg | 5,619.08 mi (9,043.03 km) |
| Willowbrook to Oldenburg in Holstein | 5,631.67 mi (9,063.30 km) |
| Willowbrook to Olfen | 5,667.82 mi (9,121.47 km) |
| Willowbrook to Olpe | 5,716.51 mi (9,199.84 km) |
| Willowbrook to Olsberg | 5,718.44 mi (9,202.94 km) |
| Willowbrook to Oranienburg | 5,775.57 mi (9,294.88 km) |
| Willowbrook to Ortenberg | 5,786.25 mi (9,312.07 km) |
