| Opelika to Kalispell (Montana) | 1,845.62 mi (2,970.23 km) |
| Opelika to Kaneohe (Hawaii) | 4,442.13 mi (7,148.91 km) |
| Opelika to Kankakee (Illinois) | 599.11 mi (964.17 km) |
| Opelika to Kannapolis (North Carolina) | 333.56 mi (536.82 km) |
| Opelika to Kansas City (Kansas) | 687.99 mi (1,107.21 km) |
| Opelika to Kansas City (Missouri) | 679.95 mi (1,094.28 km) |
| Opelika to Kapaa (Hawaii) | 4,509.91 mi (7,257.99 km) |
| Opelika to Kapolei (Hawaii) | 4,460.10 mi (7,177.84 km) |
| Opelika to Katy (Texas) | 648.63 mi (1,043.86 km) |
| Opelika to Kaukauna (Wisconsin) | 817.50 mi (1,315.64 km) |
| Opelika to Kaysville (Utah) | 1,570.98 mi (2,528.26 km) |
| Opelika to Kearney (Missouri) | 681.96 mi (1,097.50 km) |
| Opelika to Kearney (Nebraska) | 939.09 mi (1,511.32 km) |
| Opelika to Kearns (Utah) | 1,568.58 mi (2,524.38 km) |
| Opelika to Kearny (New Jersey) | 836.17 mi (1,345.69 km) |
