| Fort Smith to Kaneohe (Hawaii) | 3,908.55 mi (6,290.20 km) |
| Fort Smith to Kankakee (Illinois) | 531.32 mi (855.07 km) |
| Fort Smith to Kannapolis (North Carolina) | 772.50 mi (1,243.22 km) |
| Fort Smith to Kansas City (Kansas) | 261.57 mi (420.96 km) |
| Fort Smith to Kansas City (Missouri) | 260.98 mi (420.00 km) |
| Fort Smith to Kapaa (Hawaii) | 3,973.37 mi (6,394.53 km) |
| Fort Smith to Kapolei (Hawaii) | 3,926.37 mi (6,318.88 km) |
| Fort Smith to Katy (Texas) | 393.44 mi (633.18 km) |
| Fort Smith to Kaukauna (Wisconsin) | 696.28 mi (1,120.55 km) |
| Fort Smith to Kaysville (Utah) | 1,029.63 mi (1,657.03 km) |
| Fort Smith to Kearney (Missouri) | 276.75 mi (445.39 km) |
| Fort Smith to Kearney (Nebraska) | 449.88 mi (724.02 km) |
| Fort Smith to Kearns (Utah) | 1,025.67 mi (1,650.65 km) |
| Fort Smith to Kearny (New Jersey) | 1,160.09 mi (1,866.98 km) |
| Fort Smith to Keene (New Hampshire) | 1,288.82 mi (2,074.15 km) |
