The best way from Lisbon to Tuy/Tui (Spain) is by train:
Timetable as follows:
lisboa_tui train timetable 2010
There is no direct bus service between Lisbon and Tuy.
However, Spanish Bus company http://www.autna.com/ offer a service with a change in Porto.
To view the timetable click on - Servicios and then click on - Lineas Regulares
