Found this at Scramble's online Show dates section:
http://www.dover2009.com/ Saturday/Sunday 25/26 July
http://www.ville-sangatte.fr/pageLibre000108fc.php Saturday 25 July
Celebration of crossing the Channel by Louis Bleriot, 100 years ago. With participation of the Red Arrows and Patrouille de France. I could not find the time when their show or fly-past will take place.
Might be of interest for anyone returning from or heading to the UK!
Info about the display times is much appreciated.