AirHint found the following cheapest return flights from Delhi (DEL) to San Francisco (SFO) in May 2026 (see full year).

Return flights

26 May - 25 Jun	Vietnam Airlines
23 May - 25 Jun	Vietnam Airlines
20 May - 27 May	Delta
12 May - 19 May	Delta
20 May - 26 May	Air France
02 May - 27 May	Vietnam Airlines
02 May - 23 May	Vietnam Airlines
02 May - 09 May	Delta
03 May - 13 May	Delta
13 May - 17 May	Delta
16 May - 21 May	Air France
01 May - 08 May	Cathay Pacific
17 May - 01 Jun	Air France
26 May - 29 Jun	Air France
19 May - 23 Jun	Air France
27 May - 10 Jun	Air France
29 May - 29 Jun	Air France
20 May - 10 Jun	Air France
05 May - 05 Jun	Air France
05 May - 06 Jun	Air France

Also check the deals for one-way flights from Delhi to San Francisco in May.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Delhi to San Francisco in May from 604€

Return flights