United Airlines Heathrow Terminal United Airlines is one of the leading airlines. So, if you are flying with United Airlines at Heathrow Airport. We will provide information on how to contact United Airlines Heathrow Terminal. There are several ways to do so. You can contact United Airlines customer service at United Terminal Heathrow. at US Number: OTA: +1-800-971-7347. #heathrowunitedterminal #heathrowterminalforunited Visit us: https://skyairbus.com/blog/how-to-contact-united-airlines-at-london-heathrow-airport/