Cheap Flights from San Francisco (SFO) to Kolkata (CCU)

Compare San Francisco International to Kolkata flight deals

Find the cheapest month or even day of the year to fly to Kolkata

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Flight deals from San Francisco International to Kolkata

Looking for a cheap last-minute deal or the best return flight from San Francisco International to Kolkata? Find the lowest prices on one-way and return tickets right here.

Kolkata.$1,182 per passenger.Departing Thu, 4 Sep, returning Sun, 19 Oct.Return flight with Singapore Airlines.Outbound indirect flight with Singapore Airlines, departs from San Francisco International on Thu, 4 Sep, arriving in Kolkata.Inbound indirect flight with Singapore Airlines, departs from Kolkata on Sun, 19 Oct, arriving in San Francisco International.Price includes taxes and charges.From $1,182, select.

Kolkata.$1,516 per passenger.Departing Sun, 26 Oct, returning Fri, 31 Oct.Return flight with Air India.Outbound indirect flight with Air India, departs from San Francisco International on Sun, 26 Oct, arriving in Kolkata.Inbound indirect flight with Air India, departs from Kolkata on Fri, 31 Oct, arriving in San Francisco International.Price includes taxes and charges.From $1,516, select.

Kolkata.$1,516 per passenger.Departing Sat, 1 Nov, returning Tue, 9 Dec.Return flight with Air India.Outbound indirect flight with Air India, departs from San Francisco International on Sat, 1 Nov, arriving in Kolkata.Inbound indirect flight with Air India, departs from Kolkata on Tue, 9 Dec, arriving in San Francisco International.Price includes taxes and charges.From $1,516, select.

Kolkata.$1,549 per passenger.Departing Mon, 26 May, returning Mon, 2 Jun.Return flight with IndiGo.Outbound indirect flight with IndiGo, departs from San Francisco International on Mon, 26 May, arriving in Kolkata.Inbound indirect flight with IndiGo, departs from Kolkata on Mon, 2 Jun, arriving in San Francisco International.Price includes taxes and charges.From $1,549, select.

Kolkata.$1,559 per passenger.Departing Thu, 4 Sep, returning Thu, 18 Sep.Return flight with IndiGo.Outbound indirect flight with IndiGo, departs from San Francisco International on Thu, 4 Sep, arriving in Kolkata.Inbound indirect flight with IndiGo, departs from Kolkata on Thu, 18 Sep, arriving in San Francisco International.Price includes taxes and charges.From $1,559, select.

Kolkata.$1,572 per passenger.Departing Tue, 28 Oct, returning Tue, 20 Jan.Return flight with Singapore Airlines.Outbound indirect flight with Singapore Airlines, departs from San Francisco International on Tue, 28 Oct, arriving in Kolkata.Inbound indirect flight with Singapore Airlines, departs from Kolkata on Tue, 20 Jan, arriving in San Francisco International.Price includes taxes and charges.From $1,572, select.

Kolkata.$1,609 per passenger.Departing Sun, 26 Oct, returning Sat, 1 Nov.Return flight with Air India.Outbound indirect flight with Air India, departs from San Francisco International on Sun, 26 Oct, arriving in Kolkata.Inbound indirect flight with Air India, departs from Kolkata on Sat, 1 Nov, arriving in San Francisco International.Price includes taxes and charges.From $1,609, select.

Kolkata.$1,610 per passenger.Departing Thu, 31 Jul, returning Sat, 30 Aug.Return flight with Air India.Outbound indirect flight with Air India, departs from San Francisco International on Thu, 31 Jul, arriving in Kolkata.Inbound indirect flight with Air India, departs from Kolkata on Sat, 30 Aug, arriving in San Francisco International.Price includes taxes and charges.From $1,610, select.

Find the cheapest month to fly from San Francisco International to Kolkata

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like San Francisco International to Kolkata flights are currently cheapest in October.

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Direct flights from San Francisco International to Kolkata

San Francisco International to Kolkata: Alternative routes

Compare routes from San Francisco International to Kolkata below. You may find an airport to fly into that's cheaper, faster, or easier than Kolkata.

San Francisco to Kolkata: Flight information

The things to know before you go.

Cheapest flight found	$1,182
Cheapest month to fly	September
Average flight time	16 hrs, 15 mins
Most popular airline	Air India
Average flights per week	2

Finding cheap flights from San Francisco International to Kolkata: Frequently asked questions

How much are return flights from San Francisco International to Kolkata?

The best price we found for a return flight from San Francisco International to Kolkata is $1,182. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from San Francisco International to Kolkata?

16 hours and 15 minutes is the average flight time from San Francisco International to Kolkata.

Which airlines fly direct from San Francisco International to Kolkata?

Air India flies direct from San Francisco International to Kolkata.

How many flights are there a week from San Francisco International to Kolkata?

As of May 2025, there are 2 flights per week flying from San Francisco International to Kolkata.

When is the cheapest time to fly from San Francisco International to Kolkata?

The cheapest month to fly from San Francisco International to Kolkata is usually September.

Which upcoming date is cheapest to fly from San Francisco International Airport to Kolkata Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from San Francisco International Airport to Kolkata Airport on Thursday, 4 September 2025.

Can I get a direct flight from San Francisco International Airport to Kolkata Airport?

Yes – the average flight time is 16 hours and 15 minutes.

How can I find the best flight deal to Kolkata?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Kolkata but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Kolkata?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Kolkata is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from San Francisco International Airport to Kolkata with?

Currently, Singapore Airlines offers the cheapest flight tickets to Kolkata.

Travelling from San Francisco International Airport (SFO) to Netaji Subhas Chandra Bose Airport (CCU): what you need to know

Kolkata is 12 hours 30 minutes ahead of San Francisco and observes the UTC+5:30 timezone.
Your SFO to CCU flight won't wait if you're running late, so don't forget to check in on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're travelling internationally.
Travelling during a peak time like August? Public holidays and other popular seasons can mean longer lines at check-in and security. Play it safe and arrive up to four hours before an international flight and two hours before domestic departures.
Think about adding a stopover when booking your ticket from San Francisco International Airport to Netaji Subhas Chandra Bose Airport. Simply deselect 'Direct flights only' to break up your trip, or perhaps explore a new destination along the way. Here's where you can stop between SFO and CCU:
- Kempegowda International Airport
- Indira Gandhi International Airport
- Hamad International Airport

How to find the cheapest flights from San Francisco International Airport (SFO) to Netaji Subhas Chandra Bose Airport (CCU)

$663 is the lowest price for a one-way San Francisco International Airport to Netaji Subhas Chandra Bose Airport flight. A return flight starts at $1,182. These prices can change based on demand.
Don't leave everything to the last minute. You're more likely to find cheap tickets from SFO to CCU if you book ahead. Airlines often offer some terrific early bird discounts.
The 'Whole month' tool shows you the cheapest flights from San Francisco International Airport to Netaji Subhas Chandra Bose Airport across every month. It's an easy way to find a bargain if your travel dates aren't set in stone.
You won't have to check back in every day to find out if fares have dropped when you set up a Price Alert. We'll send you an update as soon as there's a new deal on cheap flights from SFO to CCU.
Tailor your trip using filters. Pick your departure and arrival times, total journey duration and airlines. You can also sort results by 'Fastest,' 'Best' or 'Cheapest' flights from San Francisco International Airport to Netaji Subhas Chandra Bose Airport.

Handy information about San Francisco International Airport (SFO)

When it comes to San Francisco International Airport's on-time performance, data shows 77.36% of flights arrive within the scheduled timeframe.
Central San Francisco to San Francisco International Airport is around 21 kilometres. Depending on traffic, it'll take you about 20 minutes to get there if you're driving, ride-sharing or catching a cab.
Planning to catch public transport? You can expect a journey time of around 45 minutes.
Looking for a convenient hotel close to SFO? If you've booked an early flight from San Francisco International Airport to Netaji Subhas Chandra Bose Airport, these stays will have you moments from your check-in counter:

Arriving at Netaji Subhas Chandra Bose Airport (CCU)

The last thing you need is a lengthy journey to your hotel if you're landing late on a San Francisco International Airport to Netaji Subhas Chandra Bose Airport flight. Reserve one of these accommodation options near CCU instead:
Book a Netaji Subhas Chandra Bose Airport rental car and check out destinations off the typical tourist track. Europcar and Avis can hook you up with a set of wheels for your adventures through Kolkata and beyond.
Secure the lowest price by booking your vehicle from Netaji Subhas Chandra Bose Airport around four weeks ahead of your departure.

Getting from Netaji Subhas Chandra Bose Airport (CCU) to central Kolkata

From Netaji Subhas Chandra Bose Airport, Kolkata is approximately 16 kilometres away. It takes around 40 minutes to drive to the centre.
Travelling by public transport will take you around 55 minutes.

When to fly to Netaji Subhas Chandra Bose Airport (CCU)

It's time to choose your dates for your flight from San Francisco International Airport to Netaji Subhas Chandra Bose Airport. July is the busiest month to visit Kolkata. If you want a quieter vibe, go in April.
Lock in your flight from San Francisco International Airport to Netaji Subhas Chandra Bose Airport for April if you'd like to visit Kolkata during its warmest month. You can expect temperatures of between 24ºC (75ºF) and 42ºC (108ºF).
If you want to travel in cooler conditions, search for a cheap ticket from SFO to CCU in January. Temperatures average between 15ºC (59ºF) and 29ºC (84ºF) then.

Explore more of India

You've done Kolkata, now it's time to explore other corners of India. Travel about 467 kilometres north-west to Patna to tick off its leading attractions. From Mahatma Gandhi Setu to Bihar Museum and Golghar, your itinerary will be busy.
If you want to check out another major stop in India, consider Ranchi, roughly 322 kilometres west of Kolkata. Rock Garden, Jagannath Temple and Deer Park are among its highlights.