| Alpena to Oschatz | 4,135.46 mi (6,655.38 km) |
| Alpena to Oschersleben | 4,041.88 mi (6,504.77 km) |
| Alpena to Osnabruck | 3,918.45 mi (6,306.14 km) |
| Alpena to Ostbevern | 3,920.19 mi (6,308.94 km) |
| Alpena to Osterburg | 4,030.00 mi (6,485.66 km) |
| Alpena to Ostercappeln | 3,922.52 mi (6,312.69 km) |
| Alpena to Osterhofen | 4,238.75 mi (6,821.60 km) |
| Alpena to Osterholz-Scharmbeck | 3,910.46 mi (6,293.27 km) |
| Alpena to Osternienburg | 4,077.27 mi (6,561.74 km) |
| Alpena to Osterode | 4,017.82 mi (6,466.06 km) |
| Alpena to Osterwieck | 4,025.06 mi (6,477.70 km) |
| Alpena to Ostfildern | 4,098.26 mi (6,595.51 km) |
| Alpena to Osthofen | 4,025.92 mi (6,479.10 km) |
| Alpena to Ostrhauderfehn | 3,872.54 mi (6,232.25 km) |
| Alpena to Ostringen | 4,059.06 mi (6,532.42 km) |
