https://official-united-airlines-helpcenters.github.io/contact-us/en/us/help/the-ways-to-speak-to-someone-at-united-airlines-via-phone-email-or-chat-options-a-step-by-step-guide/ https://official-delta-airlines-helpcenter.github.io/help/article/21-ways-to-talk-to-someone-at-delta-airlines-via-phone-email-or-chat-options-a-complete-guide-in-detailed https://official-unitedairlines-helpcenter.github.io/help/article/21-ways-to-talk-to-someone-at-united-airlines-via-phone-email-or-chat-options-a-step-by-step-guide