i think that JET2 are testing the water they will add extra flights depending on how the route sells. Its better to add extra flights than to cut.
JET2 wont want the press picking up that they are cutting flights and pax have to rebook onto a different day or airline.
XL
2 aircraft are needed on a saturday
1 aircraft for the PMI, RHO
1 Aircraft for the DLM
Could we see 2 based units from xl again more flights to be added in the coming weeks/months?