Cheapest return flights from Sioux Falls to Warsaw in April from $936

AirHint found the following cheapest return flights from Sioux Falls (FSD) to Warsaw (WMI) in April 2026 (see full year).

Return flights

17 Apr - 03 May Allegiant Air
19 Apr - 23 Apr Allegiant Air

Also check the deals for one-way flights from Sioux Falls to Warsaw in April.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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