No nonstop flights. The fastest way is via Shanghai: about 18h 48m including the connection. Other options: via New Delhi, Singapore, Doha and Dubai. Two tickets from $655.
Flights from Kolkata to San Francisco
Pick a departure date to see flights and seller prices
We search agencies and airlines for your day: nonstop and connecting flights, baggage, departure and arrival times.
How the options are calculated and what to keep in mind at the connection
Flight times come from the nonstop schedule (estimated from the distance where there is no schedule), with 3h allowed for the connection.
The price of an option is the sum of the lowest known fares for each leg; their dates may not match, so treat it as a guide.
The search shows tickets for your dates, including connections on a single ticket.
When to visit San Francisco
Weather by month
Best time to visit: May, June, July, August, September and October, +18° to +20° by day, sea +13° to +17°. In November it is +16° by day and +10° at night, sea +14°, with 8 rainy days.
Jan
+14°+8°+12°8 days
Feb
+14°+8°+12°9 days
Mar
+14°+8°+12°11 days
Apr
+16°+9°+13°3 days
May
+18°+11°+13°2 days
Jun
+18°+12°+14°0 days
Jul
+18°+13°+15°0 days
Aug
+20°+14°+16°0 days
Sep
+20°+14°+17°2 days
Oct
+20°+13°+16°3 days
Nov
+16°+10°+14°8 days
Dec
+13°+8°+13°13 days
Daytime and night temperatures in °C, sea temperature (in blue), rainy days. Months with the most comfortable weather are in green. Long-term averages.
7,812 mi (12,573 km) in a straight line between the cities.
How much time should I allow for the connection?
The options allow 3h. On a single ticket the carrier is responsible for the connection; on separate tickets you set the margin yourself, allowing time to collect and re-check your bags.
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