Aircraft noise triggered more than 85,000 complaints to Heathrow in just five months after temporary changes to flight paths.

People were blighted by aircraft noise after the west London airport undertook trials driven by the Government Future Airspace Strategy, with many easterly departure routes diverted over the borough.

The trials were intended to continue until January 26, but the end date was brought forward after a huge number of complaints.

Figures obtained by Zac Goldsmith, MP for Richmond Park, showed 86,000 complaints about noise were made in the last five months of 2014 and a total of 94,114 complaints on the same matter in the whole of 2014.

In 2013, the airport received just 18,826 complaints in relation to aircraft noise.

Mr Goldsmith said the flight path trials offered a "tiny hint" of what would come if Heathrow is expanded, with a third runway bringing hundreds of thousands of new people into the airport's noise footprint.

He added: "This astonishing figure not only demonstrates how badly affected people are by aircraft noise, it shows how important it is that Heathrow releases details of the flight paths they intend to use if expansion goes ahead.

"The impact of noise today is hard to exaggerate, but with a third runway it would reach a different dimension. A green light for expansion would trigger an almighty backlash from the many hundreds of thousands of residents under the flight path."

Other figures showed nearly 7,000 people complained to the airport about night and early morning flights last year.

Peter Willan, chairmain of the Richmond Heathrow Campaign, said: "The dramatic increase in complaints forewarn of great difficulty that will arise in the current redesign of London's airspace.

"The blight being created by Heathrow’s aircraft noise over a huge swathe of London is surely enough to scare any government into not supporting more flights."

But a Heathrow spokeswoman said a significant proportion of the figures were "generated by a few indivduals that had set up automated emails to the complaints line", which would explain the "drastic difference" in the total number of people who complained in comparison to the number of complaints. 

The spokeswoman added: "Last year 8,458 people contacted us to register a complaint about aircraft noise but at the same time 65,000 local people signed up to the Back Heathrow campaign for Heathrow's expansion. 

"Reducing noise is a key priority for Heathrow but as recent polling shows, more local people back a third runway because of the jobs and careers it would bring, than oppose it because of noise."

The release of the figures follows a report by the All Party Parliamentary Group (APPG) on Heathrow and the wider economy, which states the Government, parliament and avaiation industry have "seriously underestimated" the impact of noise from the airport's flight paths.