Most of you (in the UK anyway) are probably aware that XL airlines have ceased trading.
XL ran many of the flights to Sharm. I had a group booked with them in November, which I have just had to re-arrange. If you are planning/have booked any Red Sea holidays, it will be worth contacting your agent to find out who the flights are booked with!
All the best.
Adam
From what I hear (I'm in Italy, so not exactly the best source on this) most of the tour operators are working hard to sort out replacement flights. I would only be concerned if you arranged flights yourself or are traveling in the next week or so.