The airline announced the promotion on June 11 covering 45 cities across North America and Europe. Tickets must be purchased by June 20 for travel between September 1 and 30. Business class fares drop to $1,299 round-trip from Boston.
September shoulder season typically sees 25 percent lower hotel rates in Lisbon. TAP operates 14 weekly flights from the US East Coast. Load factors on these routes averaged 78 percent last September.
Similar sales in 2025 sold out within 48 hours. The carrier aims to fill seats before the busy holiday period begins. Fuel costs have stabilized, allowing deeper discounts this year.
What this means for you
Search TAP's website directly and use code SEPT30 at checkout before the deadline. Combine with hotel packages for additional savings on four-star properties. Book flexible tickets if your schedule may change.
Consider shoulder season advantages like shorter lines at Sintra and fewer crowds at Belém. Pack a light jacket for evening temperatures around 18°C. Avoid peak weekend flights which sell out fastest.
Expect similar promotions for October if September capacity fills quickly.