Cheapest return flights from Kolkata to San Francisco in September from 778€

AirHint found the following cheapest return flights from Kolkata (CCU) to San Francisco (SFO) in September 2025 (see full year).

Return flights

17 Sep - 24 Sep Air India
23 Sep - 30 Sep Air India
23 Sep - 11 Oct Air India
26 Sep - 21 Oct Air India
25 Sep - 10 Oct Air India
29 Sep - 06 Oct Air India
15 Sep - 22 Sep IndiGo
25 Sep - 16 Oct IndiGo
26 Sep - 22 Oct Singapore Airlines
25 Sep - 21 Oct Emirates
25 Sep - 22 Oct Emirates
21 Sep - 29 Sep Qatar Airways

Also check the deals for one-way flights from Kolkata to San Francisco in September.

Skyscanner

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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