Heathrow is attempting to crack down on night flights by imposing steeper charges on airlines.
The London hub said that tougher charges will be applied to all flights that arrive and depart within the night quota period to “disincentivise activity” between the identified hours.
And carriers that operate unscheduled flights within the night time-period between 11.30pm and 6am will be faced with a bill five times greater than daytime charges.
The aim is to try to limit the number of flights disrupting the communities closest to the airport.
Quieter next generation aircraft make up only 7% of flights from Heathrow.
Heathrow community and stakeholder engagement director, Rob Gray, said: “It is really important that we work with our local communities and airlines to strictly manage aircraft noise at Heathrow.
“We continue to take vital steps to improve matters, including our new noise charges on all flights that arrive or depart the airport during the night.”
He added: “Since the 1970s, despite a doubling of the number of flights, the population significantly affected by aircraft noise around Heathrow has reduced by around 90%.
“We believe the number of people impacted by aircraft noise will continue to reduce as we work towards a quieter, better future for Heathrow through the use of noise envelopes and our noise action plan.”