| Ottawa to Fort Madison (Iowa) | 141.12 mi (227.11 km) |
| Ottawa to Fort Meade (Maryland) | 655.41 mi (1,054.78 km) |
| Ottawa to Fort Mill (South Carolina) | 612.63 mi (985.93 km) |
| Ottawa to Fort Mohave (Arizona) | 1,459.52 mi (2,348.87 km) |
| Ottawa to Fort Morgan (Colorado) | 785.33 mi (1,263.86 km) |
| Ottawa to Fort Myers (Florida) | 1,093.22 mi (1,759.37 km) |
| Ottawa to Fort Oglethorpe (Georgia) | 484.48 mi (779.69 km) |
| Ottawa to Fort Payne (Alabama) | 506.23 mi (814.69 km) |
| Ottawa to Fort Pierce (Florida) | 1,075.81 mi (1,731.35 km) |
| Ottawa to Fort Smith (Arkansas) | 512.01 mi (824.00 km) |
| Ottawa to Fort Thomas (Kentucky) | 279.19 mi (449.31 km) |
| Ottawa to Fort Walton Beach (Florida) | 765.12 mi (1,231.34 km) |
| Ottawa to Fort Washington (Maryland) | 650.27 mi (1,046.51 km) |
| Ottawa to Fort Wayne (Indiana) | 192.25 mi (309.39 km) |
| Ottawa to Fort Worth (Texas) | 755.22 mi (1,215.41 km) |
