Originally Posted by
LXboy
Which is also true for Legacy Airlines. Low Cost Carriers (LCCs) normaly charge a fee of 6 to 9€ for each additional kg. Legacy Airlines set these fees in % of the economy full fare (up to 2.5% per kg), which is more often than not more than 9€.
If you were going to London, you might consider using BA for your trip. Their much-maligned baggage policy seems to have been made for you, as it is a per-bag surcharge rather than per kg. IIRC, the bag weight limit is 23Kg, which is as close to 50lbs as makes no difference.