Originally Posted by
bennos
Seatmaps for the 75S are now loaded for the summer. (Not sure what dates exactly, but I saw them for LAX in August.) An easy way to tell is that they have additional EC seats (through row 25, IIRC).
So that's how you can tell. The front cabin on the seat map looks the same.
This would mean that they are still not running the new 757 lie flats on JFK-ARN this summer.