Airport connection
One of the best ways to get around Lisbon is by metro (underground), see below. There is a direct metro line connecting the airport (Aeroporto station) to the city center (red line - linha vermelha). The airport is very close to the city: the distance to Instituto Superior Técnico is around 5km, so a Taxi or Uber is also very convenient and relatively cheap, usually not more than around €10 except during peak times.
How to reach the venue
By metro
The closest metro stations to Instituto Superior Técnico (5-10 minute walk) are Alameda (red and green lines) and Saldanha (red and yellow lines).
Accomodation
Hotel Alif Campo Pequeno*** | Campo Pequeno 51, 1000-081 Lisboa
Hotel Príncipe***| Av. Duque de Ávila 201, 1050-082 Lisboa
Hotel AS Lisboa*** | Av. Alm. Reis 188, 1000-055 Lisboa
Sana Executive Hotel*** | Av. Conde de Valbom 56, 1050-069 Lisboa
Residencial Fonte Luminosa | Alameda Dom Afonso Henriques 70 6 Esq, 1000-048 Lisboa