SkyTeam Alliance member China Southern has California to New Delhi, India flights on sale for $493 round trip from San Francisco and $513 from Los Angeles for travel in late April and May. These one-stop flights do not even require a long layover in China, which may be desirable or undesirable depending on how you feel about 20 hours of flight time in economy class with only a short break between flights.
The itineraries I show below are minimum travel dates with only one week in India. These tickets can be booked for several weeks in India.
China Southern Airlines San Francisco SFO – Guangzhou CAN – New Delhi DEL – CAN – SFO
China Southern Airlines Los Angeles LAX – Guangzhou CAN – New Delhi DEL – CAN – LAX
The long haul California to China flight segment books in CZ Economy T with limited 25% to 40% miles in only a few programs, while the China to India flight segment in CZ economy K earns 100% miles in several programs.