| Port Huron to Oschatz | 4,200.82 mi (6,760.57 km) |
| Port Huron to Oschersleben | 4,107.10 mi (6,609.74 km) |
| Port Huron to Osnabruck | 3,981.34 mi (6,407.35 km) |
| Port Huron to Ostbevern | 3,982.28 mi (6,408.87 km) |
| Port Huron to Osterburg | 4,097.52 mi (6,594.31 km) |
| Port Huron to Ostercappeln | 3,985.74 mi (6,414.43 km) |
| Port Huron to Osterhofen | 4,298.11 mi (6,917.14 km) |
| Port Huron to Osterholz-Scharmbeck | 3,976.32 mi (6,399.27 km) |
| Port Huron to Osternienburg | 4,142.73 mi (6,667.07 km) |
| Port Huron to Osterode | 4,081.42 mi (6,568.41 km) |
| Port Huron to Osterwieck | 4,089.66 mi (6,581.67 km) |
| Port Huron to Ostfildern | 4,153.68 mi (6,684.71 km) |
| Port Huron to Osthofen | 4,082.75 mi (6,570.55 km) |
| Port Huron to Ostrhauderfehn | 3,937.11 mi (6,336.17 km) |
| Port Huron to Ostringen | 4,115.08 mi (6,622.59 km) |
