Wizz Air boss Yvonne Moynihan told Brits they should allow more time than usual ahead of their flights, as well as several hours for connections, bring water with them and charge their phones.
These are the travel team's top picks after hundreds of hours of testing. They all beat the luggage restrictions delineated by budget airlines such as Ryanair, Easyjet and Wizz Air.
While major carriers like Lufthansa and Turkish Airlines have cut millions of seats, airlines like Jet2 and Ryanair are running flash sales and deals for the summer holidays.
The most convenient return flight package with budget brand Wizz Air has soared to £1,195 - while their cheapest direct round trip for the Friday-Sunday is £918.
O'Leary predicts a potential collapse for Wizz Air and airBaltic as fuel costs soar amidst a crisis in the Strait of Hormuz, with 20 per cent of the world's oil supply affected by blockades.