Welcome to the QF T-80 Calculator with iCalendar export.
The T-80 Calculator is normally used by business frequent flyers who routinely travel in economy.
For non-frequent flyers interested in T-80: While it's often hyped online as a definitive rule or travel hack, the reality is that T-80 is only beneficial for mid-tier status frequent flyers. The effort required and the need of a calculator to achieve T-80 benefits generally offers little value to those who don't travel regularly. External factors, such as the composition of frequent flyer status passengers, flight loadings, and seat blocking on your specific flight can also result in there being no T-80 opportunities, creating significant hassle without providing any tangible benefit. Travelling is already challenging enough for non-regular flyers without the added complication of trying to secure a specific benefit under uncertain circumstances.