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.
Despite the late booking trend, Jet2 revealed average load factor to the end of August ran 1.5 percentage points (ppts) ahead of last year which Jet2 credited, in part, to "attractive pricing".
'High cost certainty'
Jet2 said its new Gatwick base, which opened in March, was continuing to perform ahead of initial expectations, driven by a "stronger-than-expected" mix of package holiday bookings. As a result, it has upped the number of aircraft it plans to operate from Gatwick to seven for summer 2027.
On-sale seat capacity for the coming winter season is running 8% ahead of last winter at 5.9 million seats, primarily owing to the launch of Gatwick where it has 400,000 winter seats on sale.
Jet2 is 93% hedged on its full-year jet fuel requirement at an average price of $753 and more than 90% hedged on foreign exchange, ensuring "a high degree of cost certainty".
"We have been encouraged by the sustained level of demand for both our holiday products through the peak summer season which gives us confidence for the remainder of the financial year," said Jet2 Chief Executive Steve Heapy.
Main market ambition
Heapy also confirmed that owing to Jet2's sustained growth over the past decade, it will seek permission to trade on the London Stock Exchange's main market. Jet2 hopes to be admitted before the end of its current financial year.
Jet2 said the move was a "natural next step" for the business reflecting "the group's scale, continued evolution, strong track record and the board's confidence in its long-term growth prospects".
In addition, Jet2 said joining the main market would "provide a platform to support its future development and enhance its visibility with a broader range of UK and international institutional investors".
Heapy added: "As the UK's leading tour operator and third-largest airline, we also believe this is the right time to announce our intention to move to the main market of the London Stock Exchange, reflecting the scale of the business we have built, our proven track record of delivery and the opportunities that lie ahead."