Jet2 are giving away a million free child places in their summer 2021 holiday sale.
The travel firm are also offering customers £100 off per person for bookings next year.
But holidaymakers need to be quick because the discounts only apply to the first 50,000 bookings.
The airline is also giving customers 10% off flights to all Summer 21 destinations.
It means that every flight next summer will have at least one free child place, and that the company has free child places available every day to every destination.
There are more than 12 million seats on sale to more than 50 destinations from nine UK bases.
The flash sale comes as the tour operator announced it was cancelling holidays to Crete up to and including September 20 after England’s new quarantine rules.
From 4am on Wednesday travellers arriving in England from Lesbos, Tinos, Serifos, Mykonos, Crete, Santorini or Zakynthos (also known as Zante) must self-isolate for 14 days.
This is part of the Government’s new regional approach to quarantine policy.
Transport Secretary Grant Shapps said that, should infection rates differ from their mainland countries, islands can be added to or removed from the quarantine-exemption list.
Last week it also scrapped all flights to mainland Spain and parts of Croatia for the remainder of the summer.
Brits will not be able to fly to tourist destinations including Alicante, Malaga, Barcelona, Dubrovnik or Split using the airline.
Summer officially ends in the UK on September 22.
A statement from the company said: “Because of the ongoing uncertainty caused by the Covid-19 pandemic, as well as the current UK government advice, we have taken the difficult decision to suspend all flights and holidays to Mainland Spain (affecting Alicante, Malaga and Barcelona) and Dubronik and Split for the rest of Summer 2020.
“We are obviously very disappointed to be making this announcement, as we know how much our customers look forward to their well-deserved holidays in these fantastic destinations.”