Description: JetBlue Airways is a United States low-cost airline headquartered in the Long Island City neighborhood of the New York City borough of Queens. Want to know do i upgarde my seat on JetBlue Airways? Then you are at the right place. Just go through Skyairbus website blog and follow the instruction given in blog. For more detailed info Call JetBlue customer service at +1-800-538-2583 or OTA: +1 855 972 8379.