Lisbon, Portugal does not house a separate Delta Airlines office. Travelers can, however, simply use the Delta mobile app or website to obtain their services. Delta Airlines Lisbon Office travelers can get in touch with Delta’s customer care, which is open around-the-clock by phone, online chat, or social media, with any questions they may have about reservations, cancellations, or general assistance. Passengers traveling to Delta destinations can check in at counters located in Terminal 1 of Lisbon Portela Airport (LIS), where Delta operates. Ground agents and airport employees are available to help with check-ins, luggage services, and other travel-related issues when you need help in person. It is advised to arrive early at the airport to ensure a seamless check-in procedure.