September can be a great time to fly to Sioux Falls from Shetland with a flight ticket averaging about £801. Cheapflights users have found deals in the month of September for as cheap as £531. The most expensive prices can be found in the month of July.
At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Lerwick and Sioux Falls for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.
Our data indicates that the weather will be 30 °C on average in the month of July. The temperature in Sioux Falls is typically hotter than in Lerwick. If you're traveling when the temperature is at its warmest, push to plan early, as flight price and availability will have an impact on your travels. For the best results, search for flights well in advance or after peak season.