How much would it cost to fly to Spain or Gibraltar from the United States for next year's eclipse?

I was fortunate enough to navigate through the clouds on April 8, 2024 to see my first eclipse and really don't want to wait until the 2040's to see another one in the States! So to those who travel and those living in Spain, what should I expect for flight and lodging expenses for such a high demand event like an eclipse? And what other things should I know about the norms and culture before going?