Just wondering.
Is delivery flight flown by Boing pilot or LY?
Delivery is always flown by carrier, paid by carrier (fuel) etc.
Prior to accepting an aircraft, there are some test flights, known as B1/B2 and C1/C2. The B's are paid by Boeing and C by the carrier
They are now flying now Flight 1*789* non-stop t TLV, when they took delivery of a 737 they flew with a stop (overnight) at JFK and CDG for "security" reason whereas other carriers do the stop up north in Canada