| Opelousas to Kalispell (Montana) | 1,692.50 mi (2,723.81 km) |
| Opelousas to Kaneohe (Hawaii) | 4,075.32 mi (6,558.60 km) |
| Opelousas to Kankakee (Illinois) | 767.77 mi (1,235.60 km) |
| Opelousas to Kannapolis (North Carolina) | 745.30 mi (1,199.45 km) |
| Opelousas to Kansas City (Kansas) | 612.89 mi (986.36 km) |
| Opelousas to Kansas City (Missouri) | 610.36 mi (982.28 km) |
| Opelousas to Kapaa (Hawaii) | 4,148.28 mi (6,676.01 km) |
| Opelousas to Kapolei (Hawaii) | 4,093.50 mi (6,587.86 km) |
| Opelousas to Katy (Texas) | 229.91 mi (370.01 km) |
| Opelousas to Kaukauna (Wisconsin) | 972.70 mi (1,565.42 km) |
| Opelousas to Kaysville (Utah) | 1,324.15 mi (2,131.01 km) |
| Opelousas to Kearney (Missouri) | 623.51 mi (1,003.45 km) |
| Opelousas to Kearney (Nebraska) | 804.93 mi (1,295.41 km) |
| Opelousas to Kearns (Utah) | 1,315.56 mi (2,117.19 km) |
| Opelousas to Kearny (New Jersey) | 1,227.54 mi (1,975.54 km) |
