: After security, follow signs for your concourse (usually labeled A, B, C, etc.) and specific gate number [8].
: Adhere to the "3-1-1" rule (sometimes referred to as 3-3-3 ): liquids must be 3.4 ounces (100ml) or less per container, all fitting in one quart-sized clear bag [34]. Airport
: For domestic flights in the U.S., you typically must check bags at least 45 minutes before departure [32, 33]. International flights often require 60 minutes [33]. : After security, follow signs for your concourse
: Many airlines allow you to check in 24 hours in advance. This lets you skip the counter if you only have a carry-on [8, 14]. : After security