JET2 launched its Christmas sale earlier, with £ 100 off per person on holiday bookings next summer.
Great deals include vacations to Spain from £ 279pp and Greece from £ 280pp.
Each vacation booking includes seven nights at the hotel and round-trip flights, plus airport transfers.
All vacations also have 22kg checked baggage and 10kg hand baggage, and are protected by ATOL.
While holidays in Spain are currently banned due to the coronavirus, with Britons banned and a mandatory UK quarantine, you can book the holidays for next summer
Spanish destinations on offer from May 1 include Ibiza and the Costa del Sol, while Greek destinations Kefalonia and Crete are also great deals under £ 300 per person.
The Algarve starts from £ 313 pp, while a week in Turkey starts from £ 336 pp.
The tour operator also allows families to pay only down payments of £ 60 per person to secure the 2021 holidays, with monthly payment plans also offered, with no interest or payment.
That means you could be planning a luxury vacation for next year and paying from just £ 82 per month for it.
Jet2 also launched more flights and vacations to Greece for the summer of 2021, with 135 new routes at four UK bases.
These include Corfu, Crete, Kos, Santorini, Rhodes, Zakynthos and Kefalonia from Birmingham, Manchester, Leeds and London Stansted.
British Airways kicked off its January sale early with city breaks starting at just £ 99.
The Virgin Atlantic sale also has great deals starting at £ 279 per person.
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