Yes, flying with the groups on Iberia is much cheaper in comparison to individual bookings. This is because on reservation of several seats together, airlines provide exclusive deals to the flyers. However, for Iberia Group Travel, a sufficient number of passengers is needed to make a group flight reservation, which is 10 or more. For more information about the group booking process and guidelines of Iberia, flyers can contact its customer service representative or read the blog mentioned by Group Travel Airlines.