Go through your results for flights to Santander in Spain with Netflights. Although Iberia Airlines usually has the best prices, it's best to double check what's available for your travel dates.
If you don’t have set dates for when you want to fly to Santander, try searching by month – that way, you can compare airfares throughout the year.
Look out for flights with Iberia Airlines, as they often have good deals. Or broaden your search by looking at other airports in Spain.
For even more options, check what other airports you could fly to Santander from. You might be able to make a saving by going from a different airport or city.