| Opelika to Kingsville (Texas) | 826.11 mi (1,329.49 km) |
| Opelika to Kinston (North Carolina) | 480.97 mi (774.05 km) |
| Opelika to Kirkland (Washington) | 2,176.12 mi (3,502.12 km) |
| Opelika to Kirksville (Missouri) | 656.25 mi (1,056.13 km) |
| Opelika to Kirkwood (Missouri) | 497.21 mi (800.17 km) |
| Opelika to Kiryas Joel (New York) | 860.16 mi (1,384.29 km) |
| Opelika to Kissimmee (Florida) | 382.32 mi (615.28 km) |
| Opelika to Klamath Falls (Oregon) | 2,084.98 mi (3,355.45 km) |
| Opelika to Knightdale (North Carolina) | 448.45 mi (721.72 km) |
| Opelika to Knik-Fairview (Alaska) | 3,423.52 mi (5,509.63 km) |
| Opelika to Knoxville (Tennessee) | 242.63 mi (390.48 km) |
| Opelika to Kokomo (Indiana) | 540.72 mi (870.21 km) |
| Opelika to Kuna (Idaho) | 1,831.56 mi (2,947.62 km) |
| Opelika to Kyle (Texas) | 760.39 mi (1,223.73 km) |
| Opelika to La Cañada Flintridge (California) | 1,887.42 mi (3,037.52 km) |
