Looks like United was running flights from SFO nonstop to Delhi until Russia closed their airspace to US flights. Looking at the list of longest nonstops, a hyp

Looks like United was running flights from SFO nonstop to Delhi until Russia closed their airspace to US flights. Looking at the list of longest nonstops, a hypothetical LA-Delhi, assuming usage of Russian airspace, flight would fit within the range of a couple of aircraft. The JFK-Singapore direct would still be hundreds of km longer.