Originally Posted by
Jeff767
Over the standard 757 yes, it’s about 100 short of the 757 with winglets and again that aircraft struggles.
A Delta 75S (lie-flat 757-200 with winglets) might struggle westbound in winter winds on TXL-JFK (ask United flyers about Gander and Bangor diversions on TXL-EWR with 757s) but should have ample range for LGW-BOS/JFK on all but the very worst days. I make no prediction as to Delta's choice of aircraft to start nor what might be sustained.