Please note that from tomorrow, 19 July 2017, increased security screening will come into effect for all flights to the USA, passengers should, therefore, expect longer waiting times at the airport particularly with the peak summer season upon us. Please check with your airline for their recommended check-in times, Swiss, for example, is recommending at least three hours before departure.
The new measures have been implemented by the US Dept for Homeland Security and will affect all US bound flights from 105 countries worldwide and 280 airports. Also included in the enhanced screening will be additional checks on personal electronic devices, including mobile phones larger than 16cm in length, 9.3cm in width and 1.5cm depth, laptops, tablets and e-readers. It is also recommended that all devices have sufficient power to be turned on in case they need to be checked. However, these electronic devices can still be taken into the aircraft cabin.