In this May 19, 2016 file photo, a Thomas Cook plane takes off in England. More than 600,000 vacationers who booked through tour operator Thomas Cook were on edge Sunday, wondering if they will be able to get home, as one of the world's oldest and biggest travel companies teetered on the edge of collapse.
LONDON: British tour operator Thomas Cook has ceased trading and all its hundreds of thousands of bookings canceled after the firm failed to secure rescue funding.