Check in online 24 hours ahead, arrive two hours early (three international), keep ID and boarding pass handy, pack liquids under 100 ml in a clear bag, follow the signs to your gate and be there when boarding starts. Everything else is optional.
Before the day: check the airline’s bag rules, check in online and save the boarding pass, put liquids in a clear bag, charge your phone.
At the airport: find your airline’s check-in area (or skip it with no bags), go through security (ID and boarding pass ready, liquids and laptop out unless told otherwise, shoes stay on in the US now), then check the departure board for your gate.
At the gate: boarding is by groups; listen for yours. Have your pass ready. Cabin bags go in the overhead bin, small bags under the seat.
On board: seatbelt on, phone in airplane mode, ears may pop on descent — chew or yawn.
Landing: follow signs for baggage claim (your bag tag has a carousel number) or exit if you had no bags. For international arrivals, immigration comes first.
Related questions
How early should I get to the airport?
Two hours before a domestic flight, three before an international one, and add 30–45 minutes at mega-hubs, on holiday weekends, or if you're checking bags. PreCheck/Fast Track lets you trim about 30 minutes. Full answer →
What is the 3-1-1 liquids rule?
Each liquid, gel or aerosol in your carry-on must be in a container of 3.4 oz (100 ml) or less, all fitting in one quart-size (1 litre) clear bag, one bag per passenger. Medications and baby food are exempt but may be inspected. Full answer →
What time does boarding close before a flight?
Most airlines close the gate 15–20 minutes before departure for domestic flights and 30–45 minutes for international. The time on your boarding pass is the boarding start, not the deadline. Full answer →
Airline, airport and government rules change without notice. Treat this as a starting point and confirm with the airline or authority for your specific trip. Request a correction if something is out of date.