United has relatively low fares at $703 round trip for Los Angeles or San Francisco to New Delhi DEL India with all United-operated flights on one-stop via Newark EWR. These fares are available for departures on some dates in September to November and they are lower fares from California than from Newark ($1,050 to $1,200).
Star Alliance member airline Air China has fares as $606 round trip.
United Airlines Los Angeles LAX – Newark EWR – New Delhi, India DEL
$702.35 round trip Wed Sep 7 – Wed Sep 14
United Airlines San Francisco SFO – Newark EWR – New Delhi, India DEL
$702.35 round trip Thu Sep 22 – Wed Oct 5
Air China Los Angeles – Beijing PEK – New Delhi DEL
$605.75 (Expedia) Sun Nov 13 – Sun Nov 27
While this is a lower fare than United, I saw Air China LAX-DEL as low as $475 to $506 on May 31.
United $776 LAX to Mumbai
The schedule sucks for this all United flight itinerary since it involves 11 hours in EWR each way, but might not be bad if you have lounge access and work to do.
United Airlines Los Angeles LAX – Newark EWR – Mumbai BOM
$775.38 round trip Sun Sep 11 – Sun Sep 18
Here is a better flight schedule itinerary flying Air Canada/Swiss outbound and United inbound for $786.
United Airlines Los Angeles LAX – Montreal YUL (Air Canada) – Zurich ZRH (Swiss) – Mumbai BOM (Swiss) – Newark EWR (UA) – LAX (UA)
$786.18 Sat Oct 8 – Sun Oct 16
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