What day of the week experiences the fewest flight delays on this route?

Friday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Kolkata to San Francisco flights?

Over the past year, Air India have had the lowest number of delays on this route, with just 38% of flights being delayed.

What is the most punctual flight time for Kolkata to San Francisco flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

How often are flights from Kolkata to San Francisco delayed?

About 38% of weekly flights between Kolkata and San Francisco have experienced delays in the past year, with the average delay time being 140 minutes.

How long is the flight from Kolkata to San Francisco?

Airlines like Singapore Airlines and Emirates fly from Kolkata to San Francisco in about 22h. The time it takes to get you to your destination can typically vary by up to 8h 30m. The distance between Kolkata and San Francisco is about 7810 mi. This flight may include one or multiple stops.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 112.0 inches per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

What is the cheapest time of day to fly from CCU to SFO?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Kolkata to San Francisco as you normally would.

Can I find deals for flights from Kolkata to San Francisco that include hotel bookings?

Yes. In addition to deals on Kolkata to San Francisco flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Kolkata to San Francisco?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kolkata to San Francisco.

Can I find deals for business class flights from Kolkata to San Francisco?

Yes. Cheapflights offers flight deals from Kolkata to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£421+ Cheap Flights from Kolkata to San Francisco

Cheap flight deals from Kolkata to San Francisco

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Kolkata to San Francisco
Explore the most affordable flight options available from Kolkata to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 October 2026.

Thu 5/1118:20 -

2 stops30h 55m

Mon 17/513:45 -

2 stops30h 55m

Deal found 22/10£840

Wed 23/1220:35 -

1 stop30h 30m

Tue 5/115:40 -

1 stop37h 50m

Deal found 21/10£850

Wed 23/1209:20 -

1 stop41h 45m

Mon 4/115:40 -

1 stop37h 50m

Deal found 21/10£921

Fri 25/1209:20 -

1 stop41h 45m

Tue 5/115:40 -

1 stop37h 50m

Deal found 21/10£922

Wed 23/1220:35 -

1 stop30h 30m

Fri 1/115:40 -

1 stop26h 30m

Deal found 21/10£944

Fri 25/1209:20 -

1 stop41h 45m

Mon 4/115:40 -

1 stop37h 50m

Deal found 21/10£993

Fri 25/1209:20 -

1 stop41h 45m

Fri 1/115:40 -

1 stop26h 30m

Deal found 21/10£1,016

Mon 30/1103:25 -

2 stops44h 55m

Mon 28/1215:00 -

1 stop21h 25m

Deal found 21/10£1,030

Thu 24/1209:20 -

1 stop41h 45m

Tue 5/115:40 -

1 stop37h 50m

Deal found 21/10£1,053

Mon 21/1209:20 -

1 stop41h 45m

Tue 5/115:40 -

1 stop37h 50m

Deal found 21/10£1,085

Tue 1/1218:55 -

2 stops59h 05m

Mon 28/1218:35 -

2 stops52h 45m

Deal found 21/10£1,099

Find flight deals from Kolkata to San Francisco

Round-trip from	£761
One-way from	£421
Popular in	February
Cheapest in	November
Average price	£1,069

Singapore Airlines
21/4-19/5
2 total stops
45h 00m total
Kolkata to San Francisco

Search Deals

KLM
8/11-31/12
2 total stops
29h 00m total
Kolkata to San Francisco

Search Deals

Highest demand for flights based on searches. 13% potential increase in price (£114 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£27 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Kolkata to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

KolkataSan Francisco

CCU Kolkata Netaji S. Chandra - SFO San Francisco

CCUSFO

Kolkata Netaji S. Chandra

Sun 8/11

20:15-11:45

2 stops29h 00m

San Francisco

Wed 31/12

00:00-13:30

Nonstop0h 00m

£421

KolkataSan Francisco

CCU Kolkata Netaji S. Chandra - SFO San Francisco

CCUSFO

Kolkata Netaji S. Chandra

Wed 4/11

16:20-11:45

2 stops32h 55m

San Francisco

Wed 31/12

00:00-13:30

Nonstop0h 00m

£442

KolkataSan Francisco

CCU Kolkata Netaji S. Chandra - SFO San Francisco

CCUSFO

Kolkata Netaji S. Chandra

Wed 4/11

20:35-13:35

1 stop30h 30m

San Francisco

Wed 31/12

00:00-13:30

Nonstop0h 00m

£501

KolkataSan Francisco

CCU Kolkata Netaji S. Chandra - SFO San Francisco

CCUSFO

Kolkata Netaji S. Chandra

Sun 1/11

01:25-13:35

1 stop25h 40m

San Francisco

Wed 31/12

00:00-13:30

Nonstop0h 00m

£509

KolkataSan Francisco

CCU Kolkata Netaji S. Chandra - SFO San Francisco

CCUSFO

Kolkata Netaji S. Chandra

Sun 8/11

20:35-13:35

1 stop30h 30m

San Francisco

Wed 31/12

00:00-13:30

Nonstop0h 00m

£520

Fastest return journey

KolkataSan Francisco

CCU Kolkata Netaji S. Chandra - SFO San Francisco

CCUSFO

Kolkata Netaji S. Chandra

Fri 30/10

03:25-13:40

1 stop22h 45m

San Francisco

Wed 31/12

00:00-13:30

Nonstop0h 00m

£521

KolkataSan Francisco

CCU Kolkata Netaji S. Chandra - SFO San Francisco

CCUSFO

Kolkata Netaji S. Chandra

Wed 18/11

20:35-13:35

1 stop30h 30m

San Francisco

Wed 31/12

00:00-13:30

Nonstop0h 00m

£596

KolkataSan Francisco

CCU Kolkata Netaji S. Chandra - SFO San Francisco

CCUSFO

Kolkata Netaji S. Chandra

Sun 1/11

09:20-14:35

1 stop41h 45m

San Francisco

Wed 31/12

00:00-13:30

Nonstop0h 00m

£616

KolkataSan Francisco

CCU Kolkata Netaji S. Chandra - SFO San Francisco

CCUSFO

Kolkata Netaji S. Chandra

Wed 25/11

20:35-13:35

1 stop30h 30m

San Francisco

Wed 31/12

00:00-13:30

Nonstop0h 00m

£799

KolkataSan Francisco

CCU Kolkata Netaji S. Chandra - SFO San Francisco

CCUSFO

Kolkata Netaji S. Chandra

Fri 26/3

23:20-08:50

1 stop22h 00m

San Francisco

Fri 2/4

11:45-22:15

1 stop22h 00m

£799

Flights are sorted by cheapest return flights first.

Deals found on 21/10

Showing 1-10 of 20 resultsSorted by cheapest first

Best time to book a flight from Kolkata to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Kolkata with our price prediction graph.

CCU-SFO

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Kolkata to San Francisco

Prices

Delays

How far ahead should I book a flight from Kolkata to San Francisco?

The price you pay for your flight from Kolkata to San Francisco may vary depending on when you book. For the best chance of a lower fare, look to book 87 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Kolkata to San Francisco?

Currently, November is the cheapest month in which you can book a flight from Kolkata to San Francisco (average of £748). Flying from Kolkata to San Francisco in February is currently the most expensive (average of £1,356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from Kolkata to San Francisco?

Airfare is below average for this route at the moment.

Kolkata to San Francisco flights typically cost between £772 and £1,039 in April.
The cheapest return price found within the last 5 days was £761 on Singapore Airlines (21 Apr–19 May).

Related info for your journey

How long is the flight from Kolkata to San Francisco?
Airlines like Singapore Airlines and Emirates fly from Kolkata to San Francisco in about 22h. The time it takes to get you to your destination can typically vary by up to 8h 30m. The distance between Kolkata and San Francisco is about 7810 mi. This flight may include one or multiple stops.
Can I find deals for flights from Kolkata to San Francisco that include hotel bookings?
Yes. In addition to deals on Kolkata to San Francisco flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Kolkata to San Francisco?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kolkata to San Francisco.
Can I find deals for business class flights from Kolkata to San Francisco?
Yes. Cheapflights offers flight deals from Kolkata to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Kolkata to San Francisco?
Currently, November is the cheapest month in which you can book a flight from Kolkata to San Francisco (average of £748). Flying from Kolkata to San Francisco in February is currently the most expensive (average of £1,356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Can Cheapflights notify me if prices for flights from Kolkata to San Francisco become cheaper?

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Cheap flights from Kolkata to San Francisco from £421

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Kolkata to San Francisco

Cheapest flights from Kolkata to San FranciscoExplore the most affordable flight options available from Kolkata to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 October 2026.

Explore the most affordable flight options available from Kolkata to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 October 2026.

Best flights from Kolkata to San FranciscoDiscover carefully curated flight deals from Kolkata to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 25 October 2026.

Discover carefully curated flight deals from Kolkata to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 25 October 2026.

Last-minute flights from Kolkata to San FranciscoDiscover last-minute flight deals from Kolkata to San Francisco. Data last updated 25 October 2026 and is based on user searches.

Discover last-minute flight deals from Kolkata to San Francisco. Data last updated 25 October 2026 and is based on user searches.

One-way flights from Kolkata to San FranciscoSearch for one-way flight options from Kolkata to San Francisco. Find affordable one-way fares based on user searches. Data last updated 25 October 2026.

Search for one-way flight options from Kolkata to San Francisco. Find affordable one-way fares based on user searches. Data last updated 25 October 2026.

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Use the filters below to find and compare flights from Kolkata to San Francisco that are best for you.

Best time to book a flight from Kolkata to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Kolkata with our price prediction graph.

Cheapflights Insights

How far ahead should I book a flight from Kolkata to San Francisco?

The price you pay for your flight from Kolkata to San Francisco may vary depending on when you book. For the best chance of a lower fare, look to book 87 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Kolkata to San Francisco?

How much does it cost for a return flight from Kolkata to San Francisco?

Airfare is below average for this route at the moment.

Kolkata to San Francisco flights typically cost between £772 and £1,039 in April.The cheapest return price found within the last 5 days was £761 on Singapore Airlines (21 Apr–19 May).

How often are flights from Kolkata to San Francisco delayed?

About 38% of weekly flights between Kolkata and San Francisco have experienced delays in the past year, with the average delay time being 140 minutes.

What is the most punctual flight time for Kolkata to San Francisco flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Friday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Kolkata to San Francisco flights?

Over the past year, Air India have had the lowest number of delays on this route, with just 38% of flights being delayed.

Related info for your journey

How long is the flight from Kolkata to San Francisco?

Can I find deals for flights from Kolkata to San Francisco that include hotel bookings?

How can I find direct flights from Kolkata to San Francisco?

Can I find deals for business class flights from Kolkata to San Francisco?

What is the cheapest month to book a flight from Kolkata to San Francisco?

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Cheapest flights from Kolkata to San Francisco
Explore the most affordable flight options available from Kolkata to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 October 2026.

Best flights from Kolkata to San Francisco
Discover carefully curated flight deals from Kolkata to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 25 October 2026.

Last-minute flights from Kolkata to San Francisco
Discover last-minute flight deals from Kolkata to San Francisco. Data last updated 25 October 2026 and is based on user searches.

One-way flights from Kolkata to San Francisco
Search for one-way flight options from Kolkata to San Francisco. Find affordable one-way fares based on user searches. Data last updated 25 October 2026.

Kolkata to San Francisco flights typically cost between £772 and £1,039 in April.
The cheapest return price found within the last 5 days was £761 on Singapore Airlines (21 Apr–19 May).