Virgin Atlantic is to close its contact centre in Crawley.
The airline said it plans to merge its two call centres at its other base in Swansea in a bid to make it easier to roll out future developments.
Around 150 jobs are likely to be affected in the move, but Virgin Atlantic said it was “focussed on supporting the people impacted by this change”.
Staff were informed of the move on Tuesday, July 3.
In a statement, the airline said: “We’re committed to providing our customers with the most personalised service of any UK airline, and currently have two contact centres based in Crawley and Swansea.
“The way our customers engage with us is changing, and in order to continue to offer unrivalled service to our customers we plan to bring our contact centres together at a single site in Swansea. Being located together will make it easier to roll out the digital enhancements our customers expect, and operate a large 24/7 contact centre operation.
“We are really proud of our loyal and dedicated contact centre team and are focused on supporting people impacted by this change.”