Tui has adopted a closed-door policy across its retail network.
The company becomes the latest agency to use the strategy due to government advice on social distancing amid the coronavirus pandemic.
In a statement, the travel giant said “the health and safety of our retail colleagues and our customers is our highest priority”.
“In line with government advice on social distancing we have closed our store doors to limit the amount of contact our retail advisors are exposed to. They are still working hard to help all our affected customers amend their bookings.
“We’d like to thank you for your understanding and for keeping you and our staff safe. Our store doors will be open as soon as possible, until then our team looks forward to speaking to you.”