Routing is CMB-BOM-LHR-JFK.
All flights available as DL flight numbers.
Potentially useful to DL/Skyteam members.
CMB-BOM & BOM-LHR operated by 9W. LHR-JFK operated by DL.
CMB-BOM = 73H
BOM-LHR = 77W
LHR-JFK = 764
Variations of this fare through other Skyteam hubs (CDG/AMS) also available on certain dates, 9W operates to both CDG & AMS.
BOS is also available.
Not easily shown on Google Flights/ITA, but bookable on DL site.
e.g.
https://goo.gl/flights/CfDe