AirHint found the following cheapest one-way flights from Kolkata (CCU) to San Francisco (SFO) in October 2025 (see full year).
One-Way flights
| 12 Oct | Singapore Airlines | ||
| 29 Oct | Singapore Airlines | ||
| 03 Oct | Air India |
Also check the deals for return flights from Kolkata to San Francisco in October.
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.
Find us on social media