| Opelika to Kennewick (Washington) | 2,010.78 mi (3,236.03 km) |
| Opelika to Kenosha (Wisconsin) | 699.20 mi (1,125.25 km) |
| Opelika to Kent (Ohio) | 626.82 mi (1,008.77 km) |
| Opelika to Kent (Washington) | 2,171.02 mi (3,493.91 km) |
| Opelika to Kentwood (Michigan) | 706.51 mi (1,137.01 km) |
| Opelika to Kerman (California) | 1,979.49 mi (3,185.68 km) |
| Opelika to Kernersville (North Carolina) | 384.26 mi (618.41 km) |
| Opelika to Kerrville (Texas) | 830.93 mi (1,337.25 km) |
| Opelika to Kettering (Maryland) | 645.12 mi (1,038.21 km) |
| Opelika to Kettering (Ohio) | 490.81 mi (789.89 km) |
| Opelika to Kewanee (Illinois) | 643.51 mi (1,035.63 km) |
| Opelika to Key Biscayne (Florida) | 574.93 mi (925.26 km) |
| Opelika to Key Largo (Florida) | 601.05 mi (967.30 km) |
| Opelika to Key West (Florida) | 600.41 mi (966.27 km) |
| Opelika to Keystone (Florida) | 354.01 mi (569.73 km) |
