| Blackburn to Columbia (Illinois) | 4,054.19 mi (6,524.59 km) |
| Blackburn to Columbia (Maryland) | 3,504.48 mi (5,639.91 km) |
| Blackburn to Columbia (Missouri) | 4,108.16 mi (6,611.45 km) |
| Blackburn to Columbia (Pennsylvania) | 3,451.31 mi (5,554.34 km) |
| Blackburn to Columbia (South Carolina) | 3,914.20 mi (6,299.29 km) |
| Blackburn to Columbia (Tennessee) | 4,075.64 mi (6,559.10 km) |
| Blackburn to Columbia Heights (Minnesota) | 3,840.81 mi (6,181.18 km) |
| Blackburn to Columbine (Colorado) | 4,526.06 mi (7,283.99 km) |
| Blackburn to Columbus (Georgia) | 4,148.32 mi (6,676.07 km) |
| Blackburn to Columbus (Indiana) | 3,855.04 mi (6,204.09 km) |
| Blackburn to Columbus (Mississippi) | 4,235.46 mi (6,816.32 km) |
| Blackburn to Columbus (Nebraska) | 4,163.80 mi (6,700.98 km) |
| Blackburn to Columbus (Ohio) | 3,705.64 mi (5,963.65 km) |
| Blackburn to Commack (New York) | 3,287.75 mi (5,291.13 km) |
| Blackburn to Commerce (California) | 5,264.93 mi (8,473.08 km) |
