Less than one in 10 pilots think Brexit will be positive for UK aviation, according to a survey by union BALPA.
Half said they thought it would bring negative effects, 39% believe it would have a neutral impact, and 2% saying they didn’t know.
Only 9% think it will have a positive impact.
The survey of BALPA members was carried out by polling company ComRes.
BALPA general secretary Brian Strutton said: "The feedback from our members is that a significant proportion are concerned that Brexit will be bad for UK aviation.
"While BALPA remained neutral on the referendum itself, we do find the slow pace at which negotiations are taking place concerning.
"We sincerely hope the Government is doing all it can to get us the best possible deal, but flights for March 2019 will go on sale in just two months and passengers are yet to have any clarity on exactly what agreements will be in place when they’re booking their tickets.
"We’re now seeing that the EU is considering emergency plans to keep the UK flying should there be a ‘no deal’ Brexit but we’re unsure of exactly what this looks like and what effect this will have on our £60 billion-a-year industry.
"We’d like assurances from the Government on the arrangements that will be in place and that UK aviation will be able to continue to operate as normal post-Brexit."
