Transport correspondent.
Between October and March, British Airways will reduce the number of short-haul flights to and from the airport.
Some long-haul flights will be affected by the move in order to minimize disruption over the winter.
There will be a reduction in the number of flights until the end of October.
Due to staff shortages at the airport, passenger numbers have been capped.
The airline said it was protecting key holiday destinations.
It said in a statement that most cancellation will be on routes which have other daily services.
The passengers who are affected by the changes will be offered an alternative flight or a refund.
The majority of flights remained the same.
Customers booked for winter will be able to travel as planned and will be given several months' notice of any changes.
Over the winter, the airline said it would operate an average of over 300 round-trips per day from London.
British Airways stopped selling tickets on short-haul flights from the airport for two weeks. It wants to avoid exceeding its share of the limit.
The cap was recently extended until October.
It was announced that the cap had worked and resulted in fewer last minute cancellation and delays.
Over the summer period, BA cut nearly 30,000 flights, and had planned a slow ramp-up towards the winter. The passenger cap makes it impossible to run as many as you would like.