The 29-year-old has been linked with both Arsenal and Barcelona in recent weeks.
Iraizoz’s contract with Bilbao is set to expire at the end of the season.
“I still have a lot of travelling to do in my soccer career,” he said.
“If I do not explore the full distance that my career may take me then I am not going to get the most of my career and I do not want to waste a second of it.”
