United Airlines has New Delhi on sale through March for $700 to $730 round trip for about half the calendar dates. Most low fare routings are one stop itineraries flying to Germany on Lufthansa or United and Lufthansa to India. Or fly Swiss Airlines via Zurich.
United Airlines San Francisco – Frankfurt – New Delhi – Zurich – SFO
$728.95 Thursday January 14 – Thursday January 28
This itinerary is an example of a United ticket with the return flights marketed and operated as Swiss Airlines LX flights.
Book an all Swiss itinerary through Swiss Airlines and you should get 50% flight miles in United Mileage Plus.
Swiss Airlines San Francisco – Zurich – New Delhi – Zurich – SFO
$727.49 February 9 – February 23, 2016
Flight Miles: 19,336 SFO-ZRH-DEL-ZRH-SFO (50% = 9,668 miles),