Cheap flights from Kolkata to San Francisco from R11 483

If you’re not able to fly to San Francisco in November, then March is your next best option. Flight prices from Kolkata to San Francisco during March average around R16 777.

You are more likely to see cheaper flights to San Francisco from Kolkata when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around R19 861 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Kolkata for as low as R12 021 on momondo.

Historically, on average around 39% of flights between Kolkata and San Francisco have experienced a delay on any given week. The average delay length over the past 12 months has been 138 minutes.

Generally, flights departing in the evening tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

Friday is statistically the day of the week that experiences the fewest delays on this flight route. Wednesday has historically seen more delays on average compared to the rest of the week.

According to our data, Air India have had the fewest delays on this route over the last 12 months, with about 39% of their flights experiencing any sort of delay.

As of September 2026, 1 flights take off from Kolkata and land in San Francisco each day. The most common flight departure time for this route is 4:00, with 88% of daily flights taking off in the morning.

As of September 2026, there are 7 flights per week flying from Kolkata to San Francisco. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.