Originally Posted by
kar don
So I guess the X ticket from BOS to JFK wouldn't get me in on its own?
No, because you can't show that you are in F for the qualified routes. The only exception is if you're on a Y fare:
See
http://www.delta.com/traveling_check...ions/index.jsp
Transcontinental First Class, BusinessElite, or Full Y-Class Passenger - Same day travel on a nonstop Delta flight between: JFK to/from Denver, Las Vegas, Los Angeles, Portland, Phoenix, San Diego, Seattle, and San Francisco.
Your ST E+ status would have gotten you in if your trip had included a same-day international segment on DL/NW or other ST metal.