Some airports assign airlines to specific terminals. You can check this by visiting the airport's website, though be sure to check for your specific flight, as some airlines operate out of multiple terminals. Monitors and signs within the airport will also be able to direct you to the correct terminal.

Airlines do not always use the same terminal, and in 2026, "terminal logic" can be high-fidelity complex. While most airlines have a "home" terminal for departures, larger airports often separate operations based on whether a flight is domestic or international. For example, a Delta flight to London may depart from an international terminal, while a Delta flight to Atlanta departs from a domestic one. Additionally, code-share agreements can complicate things; you might book through United but physically depart from a Lufthansa terminal. Airline alliances (like SkyTeam or Oneworld) often try to cluster their partners in the same terminal to facilitate high-fidelity connections, but "slot" availability often forces smaller carriers to use whatever gate is available. Always verify your specific terminal on your boarding pass or the airline's app 24 hours before your flight, as major airport renovations or seasonal shifts can result in unexpected terminal reassignments that could lead to a missed flight.