How to upgrade on British Airways? Flying in comfort and style is something most travellers aspire to. And upgrading to a higher class of service can be a great way to make that happen. British Airways, one of the world's leading airlines. It offers a variety of options for upgrading your flight experience. There are various ways to make your flight more comfortable and enjoyable. We'll have a look at How to upgrade on British Airways. you’ll need to call the British Airways customer service agent. at US Number: OTA: +1-800-971-7347. You can find their contact information on their website. Once you’ve connected with a customer service representative. You’ll need to provide them with your booking reference number and flight details. #BritishAirways #upgradeBritishAirways For more info: https://skyairbus.com/blog/how-do-i-upgrade-my-british-airways-flight/