sweet spot
When the Capital One travel portal beats a transfer
United MileagePlusPublished Mon, Aug 10
Capital One miles redeem at a flat 1 cent per point against any travel purchase, which puts a floor under their value that transferable-only currencies don't have.
On routes where partner award space is scarce or where a cash fare is unusually cheap, redeeming at the flat rate can beat hunting for a transfer-partner award seat.
The rule of thumb: if the best award you can find prices out under 1 cent per point of value, take the cash-back-style redemption instead.