As of Monday, easyJet is now offering a return service from Luton to Tel Aviv.
However, there are no fixed prices — it operates a demand-based system, so the higher the demand, the pricier the tickets.
However, the airline has expanded its date-range, meaning you can book further ahead. In fact, you can currently book for flights up to the end of September 2010 and of course, the earlier you book, the cheaper your flight will be.
The airline is offering a six-times weekly service. Having had a quick look on the easyJet website myself, I found several return flights for not that much more than £100.
Of course, it depends on your dates and flexibility. The more flexible you are, the cheaper the flights you will get.