People arriving at Gatwick from areas affected by the tsunami disaster are being offered counselling and support by the airport and emergency services.
Five thousand people have flown into Gatwick Airport from the affected region in Asia since the weekend.
Gatwick's managing director Roger Cato said: "They have the opportunity to see counsellors and the chaplain.
"We've got paramedics, doctors and clothing. There is a variety of things we've been able to give and help with."
Warm clothes provided
The Red Cross said tourists have been arriving at Heathrow and Gatwick, bewildered and traumatised by what they had seen.
Volunteers from Kent and Sussex have been handing out warm clothes to those arriving in their beach clothes to a UK winter.
Red Cross director for the south east, Liz Page, said: "Some have infected mosquito bites, broken limbs and lacerations.
"They are very traumatised by what they have seen.
"It is good for them to have someone to welcome them and make sure they can get home as safely as possible."
Police boarding flights
Officers from Sussex Police are boarding incoming flights to help reunite travellers with their families and account for any missing people.
Teams of six to eight officers are joining the planes, a spokesman said.
Holidaymakers are also being issued with letters explaining the current situation in Asia before being taken to a reception area.
Asst Chief Constable, Tony Toynton, said: "Information we gather now may be vital in the weeks ahead."