| Helena to Ashtabula (Ohio) | 1,568.62 mi (2,524.45 km) |
| Helena to Ashwaubenon (Wisconsin) | 1,162.81 mi (1,871.36 km) |
| Helena to Aspen Hill (Maryland) | 1,827.52 mi (2,941.12 km) |
| Helena to Astoria (Oregon) | 561.82 mi (904.17 km) |
| Helena to Atascadero (California) | 889.57 mi (1,431.62 km) |
| Helena to Atascocita (Texas) | 1,460.10 mi (2,349.81 km) |
| Helena to Atchison (Kansas) | 977.97 mi (1,573.88 km) |
| Helena to Athens (Alabama) | 1,536.10 mi (2,472.11 km) |
| Helena to Athens (Georgia) | 1,730.68 mi (2,785.27 km) |
| Helena to Athens (Ohio) | 1,582.96 mi (2,547.52 km) |
| Helena to Athens (Tennessee) | 1,611.34 mi (2,593.20 km) |
| Helena to Athens (Texas) | 1,312.22 mi (2,111.82 km) |
| Helena to Atlanta (Georgia) | 1,692.21 mi (2,723.35 km) |
| Helena to Atlantic Beach (Florida) | 1,981.04 mi (3,188.18 km) |
| Helena to Atlantic City (New Jersey) | 1,943.08 mi (3,127.08 km) |
