Portuguese tourists do not need visa to visit Japan. Are you looking for tours to Japan from Potugal? As of the end of 2021, Portugal did not have direct flights to Japan. The nearest airport with direct flights is Aeropuerto de Madrid-Barajas (MAD). Therefore, connecting flights are the best option when traveling from Lisbon or Porto to Japan. The nearby airports also offer direct flights to Japan include Paris, Rome, Milan and Geneva. As there are many cities in Europe providing stable flights to Japan, it is not hard to find cheap tickets from Portugal to Japan. To help you with the trip, please refer to the following information on airports and flights in some European cities:
Tokyo Narita International Airport (NRT)
Frankfurt Airport (FRA): Japan Airlines
Düsseldorf Airport (DUS): All Nippon Airways (ANA)
Milan Malpensa Intercontinental Airport (MXP): Alitalia Skyteam
Aeroporti di Roma (FCO): Alitalia Skyteam
Tokyo Haneda Airport (HND)