Sales were quiet at the biennial fair, with the fast-rising Gulf carriers that had turned the gathering into a regular venue for mega-deals, saying they had enough on order.
So there was plenty of time to reflect on what easyJet CEO Carolyn McCall told the BBC this week "kept airline chief executives awake at night" -- the fear of a bomb being carried or stowed on board a flight.
What focused their attention was the crash two weeks ago of a Russian passenger jet over the Sinai after it took off from the Red Sea resort, killing all 224 people on board.
British Foreign Minister Philip Hammond charged that some countries have a problem with training and motivating security staff.
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"You don't need a sophisticated capability to get a small bomb, and that's all you need to bring down an aircraft, a small bomb with a straightforward timer.
"Sadly there are many, many people who can do that. The issue is about getting it air side in an airport that is supposed to be secure," he warned.
He said the airline's "security is in constant contact with other airports, in case there is any information ... They need to look at that could be related to security".
Emirates President Tim Clark described the suspected bombing of the Russian plane as a "game changer", pledging to reassess security procedures at several destinations.
"We're reviewing our procedures in terms of security and ramp handling and access to our aircraft," Clark was cited by Bloomberg as saying.
"There are many airports in the world where if people wanted to do some pretty bad things they could do them," he said.