Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Sioux Falls to Eureka as you normally would.
Sioux Falls Joe Foss Field (FSD) is the airport you will fly out of if you book a flight from Sioux Falls to Eureka. You should not have trouble finding flights to Eureka from Joe Foss Field; the airport handles an average of 0 outbound flights to Eureka per day. You should also have plenty of airline options to choose from since 1 airline has flights from the Sioux Falls airport to Eureka. It is only a 2.6 mi journey to Joe Foss Field (FSD) from Sioux Falls’s city center.