Ryanair said yesterday it would offer return flights between Dublin and London's Luton airport at £3.99 (€5) each, plus taxes. A spokesman for the company said there would be around 40,000 seats available at this price, with tickets on sale through travel agents, or direct by telehone and the Internet. The fare can be booked from today until Sunday March 5th, and passengers can travel on Monday to Thursday, and on Saturdays, from February 22nd until May 18th.