All flights and holidays holidays due to depart up to and on 14 April are off, the airline and operator confirmed on Tuesday (9 February).
Iceland departures are additionally cancelled up to and on 26 April.
The airline and operator’s trips were already cancelled through the winter season to 25 March.
Jet2 cited the ongoing uncertainty caused by the Covid pandemic and government travel restrictions for its decision.
"We’ve decided to extend the suspension of all holidays up to and including 14 April 2021," said Jet2.com and Jet2holidays in statement posted on its website.
"Please note, our holidays to Iceland are suspended up to and including 26 April 2021.
"If you’re due to travel from 15 April 2021 onwards, we look forward to taking you on your well-deserved holiday."
