Delta Air Lines
Delta Air Lines offers regular flights from Sioux Falls to Minneapolis/St. Paul with the minimum price per 1 adult round-trip ticket of $276, and seasonal flights from Sioux Falls to Atlanta with the minimum ticket price of $493. All prices were taken from the official website of the airline and are indicated for September - December 2018.
Phone number of Delta Air Lines: +1 800-221-1212
Official Website: https://www.delta.com