Do I Go Through Security Again for a Connecting Flight?
Sometimes you can remain inside the secure area between connecting flights, while other itineraries require another security screening. The answer depends on the airport layout, terminals, route, international entry procedures and how your flights are arranged.
Connections inside the same secure area
If your arrival gate and departure gate are connected airside, you may be able to walk or use an airside transfer system without leaving the secure area. Follow signs for Connections or Transfers.
Changing terminals can change the process
Some terminals are connected after security and others are not. A terminal change can therefore require leaving the secure area and passing through a security checkpoint again.
International connections
International itineraries can involve immigration, passport control, customs, baggage procedures or another security screening. Requirements vary by country, airport and itinerary, so follow the official transfer instructions for your arrival airport.
Do I need to collect my checked bag?
That depends on the itinerary and local procedures. Some bags are checked through to the final destination, while other connections require collection and recheck. Confirm the baggage instructions with the airline.
What if my connecting gate is in another terminal?
Check the airport map and signs for the correct transfer route. Airports may use walkways, trains or buses, and some routes operate inside security while others do not.
Allow for the complete transfer process
When evaluating a connection, consider more than walking time. Immigration, customs, baggage, terminal transfers and security screening can all affect how long it takes to reach the next gate.
Check your gate again after the transfer
Connecting gates can change while you travel. Once you reach the departure area, confirm the latest flight status, terminal and gate with the operating airline and airport displays.
Keep planning: Airport Connection Time Guide How to Find Your Connecting Flight Gate What to Do If You Miss a Connecting Flight
What Travelers Should Know
It depends on the itinerary
Many domestic connections let passengers remain in the secure area, but airport layouts, international arrivals and terminal changes can require another screening.
International connections add variables
Depending on the airport and countries involved, you may need immigration, customs, baggage collection or security before the next gate.
Check the specific airport
Use the connection procedure for your exact airport and terminals rather than relying on a general rule.
Frequently Asked Questions
Do I always go through security again for a connection?
No. Many domestic connections remain inside the secure area, but airport layout, terminal changes and international procedures can require another screening.
Can an international connection require security again?
Yes. Immigration, customs, baggage procedures and airport rules can require another security screening before the onward flight.
How do I know what my connection requires?
Follow the official connection signs at the airport and check the airport or airline instructions for your specific terminals and itinerary.
Plan Your Trip
Use your flight details to check status and gate information, then continue with airport, hotel and rental-car planning.