UA had scheduled to begin operations on a 747-400 from ORD
-DEL around the end of September 2001. 9/11 put an end to that plan.
They had even opened up bookings (I had booked a seat for that flight in December 2001) which had to be cancelled and passengers re-routed or money already paid for UA
The logic behind using ORD
as opposed to JFK
where there is denser traffic volume was that ORD
was a UA
hub and could serve passengers connecting from both the East and the West coasts of the US, rather than just the East coast by using JFK
The service was scrapped because of UA
's troubles after 9/11 and slump in traffic.
The route should be very successful if re-launched as flights to India in anycase are almost always jam packed or in the 90's at least for load factors.
I would imagine they would use a 747-400 simply as they can get more bums on seats that way as compared to a 777, besides the 744 can easily do the 15 hour flight.