Sun Country Airlines flight check-in
United StatesSun Country Airlines online check-in opens 24 h before departure and closes 1 h before departure. Online check-in is free.
| Online check-in opens | 24 h before departure |
|---|---|
| Online check-in closes | 1 h before departure |
| Airport counters close | 1 h before departure |
| Boarding gate closes | 15 min before departure |
| Check-in fee | online check-in is free |
| Boarding pass | mobile boarding pass, print at home |
| Mobile app check-in | available |
Times apply to most routes; long-haul, US and some airport-specific deadlines differ. Confirm on the official website before travelling.
How online check-in works
Sun Country offers online check-in 24 hours before domestic departure and 24 hours before international departure via the website or mobile app. Check-in closes 1 hour prior to departure for domestic flights and 2 hours prior for international flights. Online check-in is free and eliminates airport counter queues.
- Visit www.suncountry.com or open the Sun Country mobile app.
- Enter your booking reference and passenger last name.
- Select your seat (if not previously assigned).
- Confirm baggage details and any paid extras.
- Complete the check-in process and retain your boarding pass.
Tip: Check in precisely at the 24-hour window for maximum schedule flexibility; if plans change, you can modify or cancel within the airline's policies.