Distance between Helena and Sioux Falls
Distance from Helena, MT to Sioux Falls, SD is 776 miles / 1249 kilometers.
Map showing the distance from Helena to Sioux Falls
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Air distance: | miles km |
Helena, MT
| City: | Helena, MT |
| Country: | United States |
Sioux Falls, SD
| City: | Sioux Falls, SD |
| Country: | United States |
Time difference between Helena and Sioux Falls
The time difference between Helena and Sioux Falls is 1 hour. Sioux Falls is 1 hour ahead of Helena. Current local time in Helena is 01:31 MST (2025-02-18) and time in Sioux Falls is 02:31 CST (2025-02-18).