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Join Date: Sep 2009
Location: Minneapolis: DL DM charter 2.3MM
Programs: A3*Gold, SPG Plat, HyattDiamond, MarriottPP, LHW exAccess, ICI, Raffles Amb, NW PE MM, TWA Gold MM
Posts: 102,617
OP isn't really talking about an upgrade here but rather the difference in miles between the coach award ticker that he/she has now versus the cost of an available BE award ticket.
TATL upgrades are 25,000 miles each way IIRC.