ABTA, the travel trade association for tour operators, is estimating that 1.7 million British holidaymakers will head overseas for the Easter weekend.
Spain, Egypt and Tunisia are the most favoured destinations as travelers chase the sun.
Some 600,000 are expected to leave from Heathrow, 214,000 from Gatwick, 110,000 from Stansted and 55,000 from Luton.
More top news
Georgina Ferguson was on a carriage behind the one that was bombed. This is her very personal story of 7/7.
HSBC has sacked employees who staged a mock Islamic State-style beheading during a team-building exercise.
Three men gored and 10 others hospitalised during first day of a week-long San Fermin festival in the northern Spanish city of Pamplona.