The timetable

Jet2 (LSE:JET2) set out on Tuesday 10 November 2026 the expected timetable for leaving AIM and joining the Main Market of the London Stock Exchange. A prospectus is scheduled for publication on 2 December, the last day of dealings on AIM is expected to be 7 December, and admission of its 1.25p ordinary shares to the commercial companies category of the Main Market is expected at 8.00am on 8 December.

About Jet2

Jet2 operates a scheduled airline and sells package holidays under the Jet2holidays brand. The Business combines flights, hotels and transfers, so it earns Revenue from the whole holiday rather than the flight alone. Package holidays are typically booked early, which gives the company information on Demand long before departure.

From AIM's largest names to the Main Market

Jet2 is a Leeds-based leisure travel group that operates a scheduled holiday airline and sells package holidays under Jet2holidays. The company notes that more than 63% of passengers flown in the year to 31 March 2026 took end-to-end package holidays, which underlines how far the group has moved beyond seat-only flying.

The company first announced its intention to switch markets on 3 September, alongside a summer trading update. Chief executive Steve Heapy said at the time that the group's size, delivery record and future opportunities made it the right moment, and the company then indicated a move before the end of its financial year in late March 2027. The new timetable brings that forward to early December. Summer 2026 seat capacity was 19.9 million, up 7.6%, with passenger bookings up 8.8%, and winter capacity was planned at 5.9 million seats, an 8.0% increase.

Conditions attached

Admission depends on the Financial Conduct Authority approving the prospectus and on the London Stock Exchange admitting the shares to trading. No new shares will be issued as part of the move, so existing holdings will not be diluted by it. The group said it anticipates possible inclusion in the FTSE 250 after admission, which is a matter for FTSE Russell's index rules rather than a certainty.

Why it matters

The switch changes the regulatory and investor framework around one of AIM's most valuable companies. Main Market companies are subject to the UK Listing Rules and associated governance expectations, and their shares can be held by funds whose mandates exclude AIM securities. Index inclusion would bring LSE:JET2 into the portfolios of trackers following the FTSE 250, potentially widening its Shareholder base.

For AIM, the departure removes a heavyweight from its indices. Once its AIM admission is cancelled, Jet2 would no longer be eligible for the FTSE AIM 100 or other AIM indices, which would require replacements and reweighting across funds benchmarked to them. Some holders may also reassess their position: AIM shares can attract specific tax treatment, including for certain Inheritance Tax planning, that would not apply after the move.

Risks and open questions

The dates are expected rather than fixed, and slippage in prospectus approval would push back admission. Index inclusion is anticipated, not confirmed. Investors reliant on AIM-specific reliefs may sell around the transition, while index-tracking buyers may arrive only when inclusion is confirmed, so ownership could shift in the short term. The group's ongoing share buyback, with weekly transaction notices continuing up to 9 November, will also interact with any reshaping of the register. None of this alters the operating exposures of an airline and tour operator to fuel, currency, consumer demand and geopolitical disruption.

The timetable step by step

The sequence of events begins with the prospectus on 2 December, then the last day of AIM dealings on 7 December and admission to the Main Market on 8 December at 8.00am. That is a gap of only one day between the last AIM trade and the first Main Market trade, which means the shares would be continuously available for trading. The prospectus is required because Main Market admission has more extensive disclosure requirements than AIM.

Capacity and demand

Summer 2026 capacity of 19.9 million seats, up 7.6%, with bookings up 8.8%, indicates that bookings grew faster than capacity, which supports load factors. Winter capacity of 5.9 million seats, up 8.0%, shows continued expansion. At 63% of passengers on package holidays, the share is high for an airline and means a large proportion of customers buy more than seats.

Index implications

FTSE Russell decides the composition of the FTSE 250 according to its rules, and a company moving from AIM becomes eligible once it joins the Main Market. Inclusion would require index-tracking funds to buy the shares, which could increase demand, although the effect depends on the company's size relative to the index and the timing of the review. Departure from AIM removes the company from AIM indices, which affects funds that track those indices, and they must sell the shares.

Changes for shareholders

Some investors hold AIM shares because of potential inheritance tax relief on qualifying shares, which would not apply to a Main Market company. Governance expectations are also higher under the UK Listing Rules. The company has said no new shares will be issued, so the move does not dilute holders.

Fleet and booking pattern

Because package holidays are booked well in advance, the company can see demand for coming seasons before they begin. Bookings up 8.8% against capacity up 7.6% suggest demand slightly outpaced the Supply of seats, which supports pricing and the proportion of seats filled. The winter programme is smaller than the summer, at 5.9 million seats compared with 19.9 million, which reflects the seasonal nature of leisure travel.

What to watch next

The key milestones are the prospectus on 2 December, the final AIM trading day on 7 December and admission on 8 December. After that, confirmation of any FTSE 250 entry and the composition of the FTSE AIM 100 following LSE:JET2's departure will be the next developments to follow. The prospectus itself should also set out the board's full rationale for the earlier timetable, any changes to governance arrangements and the practical mechanics of transferring existing holdings across markets.