The airline and operator on Thursday (3 September) said passengers were continuing to book closer to departure "throughout the peak summer period".
Looking ahead to winter, Jet2 said: "Early indications show similar booking trends to summer with passengers still booking closer to departure."
In a trading update, Jet2 said it had seen "sustained demand" since it announced its preliminary full-year results in early July after it put 19.9 million seats on sale, 7.6% more than summer 2025.
Booked-to-date passengers are up by 8.8% year-on-year with Jet2 reporting "growth across both package holiday and flight-only" sales, albeit without providing figures for this growth.
