However, despite the reduction from 5.8 million seats to 5.6 million seats, Jet2's on sale capacity for winter 2025/26 still represents growth of 9% on last year.
In a trading update issued on Thursday (4 September), Jet2 said the ongoing trend towards late bookings this summer "had become more pronounced".
The airline and operator put 18.5 million seats on sale for summer 2025, 8% more than the previous summer. To the end of August, it had flown 2% more package holiday customers than last year, with flight-only passengers up by 17% year-on-year.
