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Sun Country Airlines online check-in: when it opens and closes

Sun Country Airlines online check-in opens 24 hours before departure and closes 45 minutes before departure. The times change with the route, airport or fare, as the table below shows.

Online check-in opens
24 hours before departure
Online check-in closes
45 minutes before departure
Where to check in
Sun Country Airlines website or mobile app
Last verified

Open Sun Country Airlines online check-in (suncountry.com)

When does Sun Country Airlines online check-in open?

Sun Country Airlines online check-in opens 24 hours before the scheduled departure time.

When does Sun Country Airlines online check-in close?

Sun Country Airlines online check-in closes 45 minutes before the scheduled departure time.

Sun Country Airlines check-in times by route and fare

Applies to Opens Closes Note
Domestic 24 hours before 45 minutes before Check-in and bag drop close 45 minutes prior to departure.
International 24 hours before 60 minutes before Closes 60 minutes prior to departure (also applies to Los Angeles LAX).
St. Thomas (STT) 24 hours before 90 minutes before Closes 90 minutes prior to departure.

What Sun Country Airlines says

These times come from pages published by Sun Country Airlines, last checked on October 30, 2026. Airlines change their rules, so confirm on the airline's page before you travel.

  • Check-in opens 24 hours before departure

    Source: suncountry.com

  • Check-in and bag drop close 45 minutes prior to departure

    Source: suncountry.com

See the check-in time for your own flight

Forward your Sun Country Airlines booking confirmation to Tineo and the flight shows when check-in opens and closes for that departure, with a button to the airline's check-in page. How Smart Check-In works.

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Online check-in times for every airline we have verified