Passengers have the option to check-in for their flights either through the mobile / web / online check-in feature on the Sun Country mobile application / website or in person at the Sun Country SDF terminal counter.
Counter at the airport is open from 3 hours before flight departure and check-in stops 45 prior to departure for domestic flights and 60 minutes prior to departure for international flights.
The online / web / mobile check-in is available between 24 hours and 60 minutes before a flight’s scheduled departure time.
