Get your airline confirmation code (example: GVD34T) from your itinerary.

Within 24 hours of your flight, login to the airline website for online check-in.

You will need your boarding pass and a government-issued photo ID (such as a driver's license / passport) to check in.

Arrive at the airport at least 2 hours before your flight for domestic flights, and at least 3 hours before international flights.

Please note that online check-in is not supported by all airlines.