BA FLIGHTS

Be very careful with Iberia operated flights and bikes. They have specified max dimensions for bike boxes that are smaller than any decent bike box. There policy says that if your bike box is bigger than this you have to ditch yours and buy a cardboard box from them that is the right  size. I don't know in practice if this is ever enforced but I personally wouldn't take the risk of some jobsworth in Mallorca forcing me to leave my bike box behind and then letting them put my lovely bike in the plane in a cardboard box.

If they do let you fly with it they do indeed charge eur150 for a return journey. Given BA let you take a bike in lieu of a hold bag it is ridiculous that BA and Iberia claim to be one and the same these days. I wouldn't go near Iberia if it were me.

Iberia charge 75 euros each way

http://www.iberia.com/gb/luggage/special/

Have used BA to Italy several times, bike traveeled as part of luggage allowance as under the 23Kg limit when in the Scicon box.

Haven't flown to Mallorca, but I flew by BA to Lyon last september. Bike went free as within my 25kg hold luggage allowance, although it was an S&S framed in an almost normal sized suitcase.

But I could have used a conventional bike box within my allowance and stuffed it full of bike clothing & helmets etc up to the weight limit.

Don't know about Iberia