Originally Posted by
amolkold
If it's a surprise proposal, wouldn't flying F to Europe kind of give a hint towards it?
I say Y/Y+ on the way there, J/F on the way back

I agree, plus you can keep costs down if that is of concern.
Take a non-stop revenue flight NYC-PAR in Y/Y+ then fly back in F.
LH are good to release F close in plus you get to use the wonderful FCT in FRA if you time your flights correctly