Booked your flight on Iberia Airlines and are thinking of upgrading your flight to enjoy a comfortable journey. The airline allows passengers to upgrade their seats, and it offers numerous modes to do so. Passengers can make an Iberia upgrade to business class by bidding for an upgrade, via campaign, with Avios, or at the last minute from the check-in counter at the airport. You can speak with a live customer care representative or visit Iberia Airlines official website to learn more about its guidelines and benefits.