Originally Posted by
BA6501
QR will check through to an Iberia flight. However, have you booked your MAD-SVQ on an Iberia flight number or Iberia Express? This might throw a spanner in the works.
They might not be able to issue a boarding pass but they should be able to tag your bags through.
I booked on Iberia Express, I2 coded. I think I may be collecting my luggage in Madrid then.