How to Change and upgrade my Iceland Air flight? How to Change and upgrade my Iceland Air flight? If you are looking to change your Iceland Air flight, there are a few ways that you can go about doing so. Firstly, call the airline’s customer service line at OTA: +1 888 915 2449 or +1-800-223-5500. Call them anytime and resolves your issue with great assistance. #howtochangeicelandairflight #howtoupgradeicelandairflight Source Url: https://flyavionic.com/blog/how-to-change-and-upgrade-my-iceland-air-flight/