| Flower Hill to Oerlinghausen | 3,997.46 mi (6,433.28 km) |
| Flower Hill to Oestrich-Winkel | 4,027.17 mi (6,481.10 km) |
| Flower Hill to Offenburg | 4,069.47 mi (6,549.18 km) |
| Flower Hill to Oftersheim | 4,069.28 mi (6,548.88 km) |
| Flower Hill to Ohrdruf | 4,111.42 mi (6,616.69 km) |
| Flower Hill to Ohringen | 4,111.56 mi (6,616.91 km) |
| Flower Hill to Olbernhau | 4,217.93 mi (6,788.10 km) |
| Flower Hill to Olching | 4,216.68 mi (6,786.08 km) |
| Flower Hill to Oldenburg | 3,947.52 mi (6,352.91 km) |
| Flower Hill to Oldenburg in Holstein | 4,015.55 mi (6,462.40 km) |
| Flower Hill to Olfen | 3,954.24 mi (6,363.73 km) |
| Flower Hill to Olpe | 3,991.47 mi (6,423.65 km) |
| Flower Hill to Olsberg | 4,007.72 mi (6,449.81 km) |
| Flower Hill to Oranienburg | 4,148.60 mi (6,676.53 km) |
| Flower Hill to Ortenberg | 4,059.12 mi (6,532.53 km) |
