TAP Air Portugal has a new promo code that you can use if you are planning to book flights with them! The promo code, SPRING20 saves you up to 20% on all fare classes except for the lowest economy fare called Discount. The code is valid for all of TAP’s flights and unlike the last code this one DOES APPLY to Business Class fares! Book by February 5 for travel March 1 to May 31, 2020. Note that March 31 to April 20 are blacked out for this offer.
Here is an example of using the promo code for a flight between Boston and Lisbon for both economy and business class: