Flight London Stansted Airport departs from London London Stansted Airport at 18:20 and arrives at Alicante Alicante–Elche Airport at 21:55.
The flighttime is about 2h 35m. The distance travelled ("as the bird flies"): 1515 Km. So the average speed is roughly 586 Km.
There is an 1 hour time difference between London and Alicante