Originally Posted by
starflyergold
Higher fare - TK fare /7= what's it worth. That should give you an accurate reading.
Personally I wouldn't dream of it.
I'd put the equation like this
((Higher fare - cash values of miles earned with higher fares) - (TK fare - cash values of miles earned with TK fares))/7= what's it worth.
Cash values depend on a lot of things. If you do need status miles the cash values will be much higher as opposed to only bonus miles. In most cases with TK, it's definitely worth it even if you lose 1/2 day each direction. I often ignore outbound going to Europe since you'd be jet-lagged first day regardless.