Airline Check-In Times & Windows (2026)

When does online check-in open? Compare check-in windows for 100 airlines.

AirlineOpensCloses
American Airlines24 hours before departure45 minutes before domestic flights, 90 minutes before international flights
Delta Air Lines24 hours before departure45 minutes before domestic flights, 60 minutes before international flights
United Airlines24 hours before departure45 minutes before domestic flights, 60 minutes before international flights
Southwest Airlines24 hours before scheduled departure45 minutes before domestic departures, 60 minutes before international departures
JetBlue Airways24 hours before departure45-60 minutes before domestic flights, 60 minutes before international flights
Alaska Airlines24 hours before departure40 minutes before domestic flights, 60 minutes before international flights
Spirit Airlines24 hours before departure45 minutes before domestic departures, 60 minutes before international departures
Frontier Airlines24 hours before departure60 minutes before domestic and international flights
Hawaiian Airlines24 hours before departure45 minutes before North America flights, 30 minutes before Neighbor Island flights, and 60 minutes before international flights
Sun Country Airlines24 hours before departure45 minutes before domestic flights, 60 minutes before international flights
Allegiant Air24 hours before departure45 minutes before scheduled flight departure
Breeze Airways24 hours before departure45 minutes before domestic departures, 60 minutes before international departures
Air Canada24 hours before departure45 minutes before domestic departures, 60 minutes before international departures
WestJet24 hours before departure60 minutes before departure for domestic, US, and international flights (except 75 minutes for flights departing Calgary, Edmonton, Toronto, and Vancouver)
Porter Airlines24 hours before scheduled departure time60 minutes before domestic flights, 75 minutes before US flights from YOW/YUL/YVR, and 90 minutes before US flights from YYZ
Flair Airlines24 hours before departure2 hours before departure
Aeromexico48 hours before departure for domestic flights, 24 hours before departure for international flights30 minutes before domestic flights, 40 minutes before international flights (at the boarding gate with boarding pass in hand); 90 minutes before domestic, 180 minutes before international (at the airport counter without boarding pass)
Volaris3, 5, or 7 days before departure for domestic flights (depending on fare), and 24 hours before departure for international flights1 hour before departure
LATAM Airlines48 hours before departure2 hours before departure for online check-in (counter closes 60 minutes before domestic, 2 hours before international)
Avianca48 hours before departure, or 24 hours for flights to/from the US, Puerto Rico, and Canada60 minutes before international flights and 45 minutes before domestic flights in Colombia and Ecuador