Workers at BAE are set for a flypast during Tuesday afternoon by the RAF’s Tornado.
The plane is retiring from active service after 40 years.
Exact timings have now been revealed for the farewell route.
BAE Warton and BAE Samlesbury are on the route between 2.30pm and 2.45pm.
Read more: See what else is on in Preston
It will likely head across the northern edge of the city when going between the two BAE sites.