ABTA is predicting that 2.2 million Brits will head overseas this bank holiday weekend.
Its members are reporting strong sales, particularly to the Balearic Islands, mainland Spain, Greece and Florida.
Thanks to a more favourable exchange rate, ABTA says Turkey has also seen spectacular growth this summer.
It predicted that hundreds of thousands will fly out from Heathrow, 308,000 from Gatwick, 192,000 from Stansted and 108,000 from Luton.
Regional airports will also be busy with 220,000 departing from Manchester, 58,000 from Bristol Airport, 98,000 will depart from Edinburgh, 77,000 from East Midlands Airport and 13,000 from Southend.
ABTA chief executive Mark Tanzer said: "The August bank holiday is one of the busiest of the year as we near the end of the summer and the school holidays.
“Temperatures around the Mediterranean are no longer at the record-breaking temperatures we saw last month and sunshine is virtually guaranteed. Many people will also be making the most of what the UK has to offer, taking weekends away or longer holidays to our coasts and countryside.”
