I’ve just received advance notice of the following offer, which may be useful to BT readers:
Lufthansa will be offering passengers booking online £20 off shorthaul economy flights within Europe and £50 off longhaul economy flights when they pay with an American Express card.
The offer will be valid for bookings made between 1 April and 15 May 2010 with outbound travel commencing on or before 31 August 2010.
Note that longhaul flights to the USA are excluded from the offer. Full terms and conditions available at the above link.