Five top package holiday booking codes, eg, Tui £150 off £1,000 – DON’T book until you’ve checked our list

Travel agents say January is traditionally the busiest month for Brits booking their summer holidays, so it’s hardly surprising there are oodles of offers and codes knocking around – all promising huge savings on your 2018 getaway. We’ve focused on package holidays here, as that’s where you usually see the big discounts (though we’ve also included a few...