Bid For an enhance: Some airlines help you bid for an update to business class. You may submit a bid for the improve and if it’s acknowledged, you’ll be upgraded at a discounted rate. American Airways’ AAdvantage method: A loyalty application that benefits you for flying with American Airways and https://businessflightshop.co.uk/blog/5-ways-to-book-the-best-business-class-flights-to-america/