Yes, you can easily buy a Viva Viagem card at the Lisbon Humberto Delgado Airport (LIS) upon arrival. The airport is directly connected to the Lisbon Metro via the "Aeroporto" station on the Red Line (Linha Vermelha). You will find several yellow Vending Machines located at the entrance to the metro station, just a short walk from the arrivals hall. These machines have an English language option and accept both cash and credit/debit cards. The card itself costs a small fee (usually €0.50) and can then be "topped up" with credit using the "Zapping" method—which is the most flexible way to pay for buses, trams, and trains across the city—or with individual tickets. In 2026, while many travelers are switching to "contactless" credit card payments directly at the turnstiles, the Viva Viagem card remains essential if you plan to buy daily passes or use the suburban trains to visit nearby destinations like Sintra or Cascais. It is a reusable card, so be sure to keep it for the duration of your trip to avoid paying the card fee again.