Many people saw the plane flying overhead on Sunday (March 7).
It passed over Wrexham, performed two tight loops over Denbighshire, and flew back and forth in a zig-zag pattern over Anglesey and down to Porthmadog and Criccieth.
Those who saw the plane, which flew at a height of about 18,000ft for several hours, shared their thoughts on social media, and the sighting also caught the interest of UFO groups.
It was perhaps more noteworthy due to the small number of planes in the sky due to the current coronavirus restrictions.
In turns out the aircraft was a Reims F406 Caravan II owned by Reconnaissance Ventures Ltd (RVL Group). It has taken off from Burton upon Trent before heading to North Wales.