Jet2holidays is offering £100 per person off the first 50,000 summer 2021 package holiday bookings made from midnight tonight.
The sale also includes 10% off Jet2.com flights to all summer 2021 destinations.
The UK’s second largest tour operator is also to offer more than one million free child places for next summer, meaning that on average there will be one child travelling for free on every flight in summer 2021.
Jet2 has more than 12 million seats on sale to more than 50 destinations from nine UK bases in summer 2021.
It said the sale gives its independent travel agent partners “even more reason to incentivise customers to book early”.
Steve Heapy, chief executive of Jet2.com and Jet2holidays said: “With Autumn already creeping up on us, after what has been an uncertain and difficult time for everyone, we want our independent travel agency partners to be able to give customers something to really look forward to.
“There’s no feeling like getting that all-important summer holiday booked, and this huge sale means there are some fantastic deals to be had. With a million free child places too, there really is no better time to book that well-deserved holiday. As well as offering the best deals, it also means independent travel agents can offer the best hotels and rooms in the best destinations.
“We have been busy looking after our agency partners and customers during these unprecedented times, and that industry-leading approach to customer service is why we continue to win praise, awards and recognition. Customers travelling with us know they will receive that same level of service, and thanks to this sale, they can really get the summer they deserve when they travel with us in summer 2021.”