Round-trip from | $344 |
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Flights from Helena to Sioux Falls are found to be more expensive on Thursday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Sioux Falls.
It’s typically best to fly out from Helena to Sioux Falls in the morning. Doing so could potentially save you 1% on the flight price compared to flying at noon, which is usually more expensive.
FSD Temperature | 15.8 - 73.4 °F |
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If weather is an important factor for your trip to Sioux Falls, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 15.8 F).
Airline | Cheapest | Average | Flexibility | On-time |
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United Airlines | Cheapest$309 | Average$544 | FlexibilityNo cancel fee | On-time69% |