I'm trying to do a rough calculation if it is somewhat feasible to operate current 737's/A320's accross the atlantic. I won't go into detail (yet) as it is very rough.
What I am looking for are CASM figures for (legacy) carriers and specifically their long haul operations. through the SEC filings I have found CASM figures for both short haul LCC and mainline CASM of legacy carriers, but I have been unable to find any numbers just for the long haul operations.
Can one of you steer me in the right direction of where to look?