Or it's something like the corporate discount plans for the small business I travel for the range is 2% (deep discount international Economy) to 8% (full fare business and Premium economy in all markets) with most of the dates I book being 4-8%... And that is with $0 in committed travel spend (and probably about 50k company wide annually with my own travel making up around 50-60%)... For someone like founders club I could see expanding the discount with committed volume but expect the 16% is likely only J/C/O and possibly Y/B/M