AirHint found the following cheapest one-way flights from Delhi (DEL) to San Francisco (SFO) in December 2025 (see full year).

One-Way flights

02 Dec	Vietnam Airlines
20 Dec	Vietnam Airlines
09 Dec	Vietnam Airlines
03 Dec	Air India
23 Dec	Vietnam Airlines
05 Dec	Air India
11 Dec	Cathay Pacific
12 Dec	IndiGo
03 Dec	Air India	direct
24 Dec	Lufthansa

Also check the deals for return flights from Delhi to San Francisco in December.

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 one-way flights from Delhi to San Francisco in December from $359

One-Way flights