United Airlines Lisbon Office +1-855⇿542-^9255United Airlines does not have a dedicated office in Lisbon, Portugal. Check-in for United flights at Lisbon Airport (LIS) is handled at the main terminal, upper level, at check-in positions 38-43, in the AEROGARE PISO 6 GABINETE 6126. United’s primary hubs are in Chicago, Denver, and other major US cities.
