Paris Airport – transit Paris airport is one of the largest airport I thin ki have seen till now .. When you get out of your flight, you need to check the TV screens/your boarding pass to find where are they boarding your flight … feel free to ask the airport attendants in case of any doubt .. In my case .. I had to follow a zig-zag path .. get on one bus to reach a place .. got my security check done .. then on zig-zag path… came out .. then got on the second bus to reach the final waiting lounge .. In-flight They would give you the immigration forms to fill up which would be required during immigration at USA airport ..