Via its frequent flyer programme, Iberia Plus (free to join, here), Iberia is currently offering 10% off all flights from Europe to Spain.
To benefit from the discount, you need to sign in to your Iberia Plus account before you start your search for flights.
The 10% discount applies to flights booked up to 18 February, for travel from 18 February to 21 March 2015.
Don’t forget that Iberia Express is also offering a sale on redemption flights using Avios: you will get 25% off the number of Avios required to fly its newly announced routes.
If you’re after some free Iberia Plus Avios (which can, of course, be transferred to your British Airways or Avios.com account), then have a look at our Free Miles/Points page.