Thanks to fantastic tailwinds in winter I've had a 5.5 hour EWR-AMS flight. Yes, 5.5 all-in (take off to touch down).

That same winter there were reports of 3.5 hour SEA-EWR flights. When I flew SEA-EWR it took 4 hours. Still fast

Just last week I had a 6hr15min take off to touch down JFK-SEA flight (on DL, though).

-RM