LoyaltyLobby Jan 31, 2021 Todayâs Airfare of the Day goes to LATAM and their basic season business class excursion fares between Lisbon (LIS), Portugal and Sao Paulo (GRU), Brazil. Sao Paulo Museum of Art. Image by Bruno Henrique from Pixabay Remember to email or message us via Facebook, Twitter or Instagram with your airfare-related questions or discoveries! Fare Details: Seasonal restrictions: From Portugal permitted 11AUG through 14JUL for each trip. To Portugal permitted 16JUL through 17AUG or 04SEP through 26Jun for each trip. Travel restrictions: Valid for travel commencing on/before 30MAY 21. All travel must be completed by midnight on 30MAY 21.