British Airways has reassured passengers that a 48-hour strike next week will not cause disruption.
Cabin crew on mixed fleet contracts are set to walkout on January 10 after a new pay offer was rejected.
BA said all flights departing and arriving at Gatwick and City airports will operate as normal. However, a “a very small number” of flights to and from Heathrow would be merging.
“As part of our contingency plan, we will be merging a very small number of flights to and from Heathrow,” BA said in a statement. “This will mean some customers will travel slightly earlier or later in the day than their original booking.”
The carrier also urged Unite to abandon its strike plans which are "serving only to cause anxiety among our Mixed Fleet cabin crew colleagues who do a tremendous job for our customers”.
The dispute affects staff that joined the airline from 2010 on ‘Mixed Fleet’ contracts - expected to work on both short and long haul flights – and feel they are not paid enough.
Workers claim they are underpaid and dispute BA’s claim that staff are paid a minimum of £21,000 a year through pay, bonuses and incentives.
An earlier strike, planned for Christmas, was suspended after that offer was made, but members rejected it by 7-1.