United System Wide Upgrades

As I can’t find this nicely spelled out anywhere, here are the economy fare class codes that you need to book to ensure you can use your system wide upgrades on any flight: Y, B, M, E, U, H, Q, V, W.  And for Business: J, C, D.  This is especially true for those of us flying in and out of Australia…


2 http://www.united.com/web/en-US/content/booking/flight/fareClass.aspx


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