A similar incident occurred during Mr Netanyahu’s visit to Rome in March, when pilots also reportedly refused to fly him.
According to Israeli media reports, Mr Netanyahu is still due to fly at 4am local time on Friday morning, having abandoned plans to fly on Thursday evening.
Tens of thousands of Israelis have taken to the streets demanding that Mr Netanyahu, who was re-elected in November, end the legal overhaul.
Critics of his reforms claim they will turn Israel into a “dictatorship” as they will weaken the Israeli supreme court and increase the government’s influence over the appointment of judges.
Mr Netanyahu was due to meet with Prime Minister Rishi Sunak on Friday. Israeli officials said the regional threat posed by Iran is due to be at the top of the agenda.
The Telegraph has approached Mr Netanyahu’s office for comment.