You should Check-In online 24 to 48 hours prior to your flight.
Plan to arrive at the airport at least 3 hours before boarding. Especially on the return trip, as you may not be familiar with the local traffic conditions.
Remember to lock and scramble the code of your luggage before checking them into the airline. Use one that has a TSA lock similar to the one above.
Some airports do not allow you to carry any container of fluid of more than 50ml. Those that are 50ml or lesser should be placed in a clear holder for easy inspection. Depending on the airport, you may be able to refill your flask at the boarding gate area.
Removed your belt and all metal objects from your body when passing through the X-ray machine. Those who are wearing boots may be required to take them off. Laptops usually are needed to be removed from their holder and placed on a separate tray.
If you were to use the complementary stations in the airport to login into your emails or so, please remember to log off after you have completed your tasks.
All sharp objects including your nail clipper should be stored in the check-in luggage instead of your carry-on. Or else be prepared not to see it again.
Do not leave your luggage unattended at all times, not even for a moment. If may be taken away by someone or the airport securities may consider it as a threat. You may lose a lot of time trying to retrieve it.
Have a waist pouch or something similar attached to you and put all your travel documents and passport in it. You do not want to look for them in your hand-carry at airport security.
Do not jump in queues, talk loudly, or joke about the efficiency of immigration. Obey all their instructions to have a smooth transit through it.
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