south bend. $36 per passenger. departing thu, aug 7, returning tue, aug 19. round-trip flight with allegiant air. outbound direct flight with allegiant air departing from punta gorda on thu, aug 7, arriving in south bend. inbound direct flight with allegiant air departing from south bend on tue, aug 19, arriving in punta gorda. price includes taxes and charges. from $36, select.