| Frederick to Oschatz | 4,185.13 mi (6,735.32 km) |
| Frederick to Oschersleben | 4,091.77 mi (6,585.07 km) |
| Frederick to Osnabruck | 3,960.99 mi (6,374.60 km) |
| Frederick to Ostbevern | 3,959.90 mi (6,372.85 km) |
| Frederick to Osterburg | 4,088.17 mi (6,579.27 km) |
| Frederick to Ostercappeln | 3,966.20 mi (6,382.99 km) |
| Frederick to Osterhofen | 4,266.40 mi (6,866.11 km) |
| Frederick to Osterholz-Scharmbeck | 3,963.66 mi (6,378.89 km) |
| Frederick to Osternienburg | 4,127.70 mi (6,642.90 km) |
| Frederick to Osterode | 4,062.10 mi (6,537.31 km) |
| Frederick to Osterwieck | 4,072.86 mi (6,554.64 km) |
| Frederick to Ostfildern | 4,113.17 mi (6,619.50 km) |
| Frederick to Osthofen | 4,046.28 mi (6,511.86 km) |
| Frederick to Ostrhauderfehn | 3,921.43 mi (6,310.93 km) |
| Frederick to Ostringen | 4,076.38 mi (6,560.29 km) |
