As this thread is just constant speculation, opinion and rumour about whether or not TUI will use third party again this summer, I’ll throw in some “news”. The four lines originally planned to be operated by Norwegian out of LGW are now planned to be operated by Smartlynx on a damp lease (Smartlynx flight deck, TUI cabin crew) basis, operating using TUI flight numbers but from the South terminal.
This is due to Norwegian’s own Max issues.