The airline will buy “over 300 tonnes” of SAF from Q8Aviation. It will be used in a 1% blend with conventional aviation fuel in its aircraft. Jet2 said this would be added “onto a number” of flights this year but did not specify how many.

Jet2 said the deal was an initial step towards more uptake. Steve Heapy, Jet2.com and Jet2holidays chief executive, said: “Travel and tourism is a force for good and, like all industries, we know how critical it is to mitigate our climate impacts.

“Like many, we see SAF as essential in helping the industry do this, which is why we are using a SAF blend at Bristol Airport in 2024 so that we can realise its benefits and prepare our operation for what we anticipate will be more and more SAF uptake.

"This announcement, in addition to our investment into a new SAF plant in the Northwest of England, shows how committed we are to SAF and how much we believe in unlocking its huge potential. We very much see 1% as the starting point and we want to grow this materially over the coming years.”