Originally Posted by
stevendorechester
As others said you will have access in MEX but not ATL. Delta is the only airline in the world that does not grant lounge access to it's international first class passengers. The AM lounge is nothing special but better than waiting in the terminal.
If it there is no change fee and little or no fare difference I would suggest changing to an AM operated flight via JFK. Flew that route last year and got a 787 for a very good experience. As I was arriving from a long haul Skyteam flight I was allowed SC access in JFK.
Thank you for this I shall look into it. Or if its not possible now at least I shall know for the next time much appreciated! Thank you!