Volotea wants to build up an Airbus A15 sub-fleet consisting initially of 320 units, Alaska Airlines wants to replace the A320ceo models with Boeing 737-Max. That fits together perfectly, because the N621VA was transferred from Bangor to Glasgow. The future EC-NNZ will soon go to Palma de Mallorca.
The Spanish low-cost airline is the new lessee of the machine, which is owned by Alaska Airlines. Overall secured Volotea 15 specimens, most recently used by Vueling, Aeroflot and Alaska Airlines. Due to the The Boeing 717 is phased out the lowcoster is now a pure Airbus operator.
The transfer flight from the USA to Europe was carried out under the callsign of the US carrier. However, the machine already has the livery of the lessee. The current EC-NNZ is to be put into regular service shortly. The cover picture shows the aircraft in question still in the Alaska Airlines livery. Below is a Twitter post embedded showing the same aircraft, but now in the livery of Volotea.