Kolkata — flights from San Francisco to Kolkata

Flight Deals from San Francisco to Calcutta from $735

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Good to Know

Essential information to help you plan your flight from San Francisco to Kolkata.

Cheapest Flight Round-trip

$1,223

Cheapest price found on Priceline for this route in the last 16 days. Found 8 days ago.

$690 below the typical $1,913 round-trip on this route.

Outbound · Nov 10

3:00 pmSFOSan Francisco International Airport

1:55 amCCUNetaji Subhash Chandra Bose International Airport

21h 25m · 1 stop via Doha (DOH)

Return · Nov 17

3:25 amCCUNetaji Subhash Chandra Bose International Airport

12:40 pmSFOSan Francisco International Airport

22h 45m · 1 stop via Doha (DOH)

Cheapest Flight One-way

$735

Lowest one-way price found on Priceline for this route in the last 16 days. Found 10 days ago.

The typical one-way fare on this route is $1,111.

Outbound · Nov 1

11:50 pmSFOSan Francisco International Airport

4:15 pmCCUNetaji Subhash Chandra Bose International Airport

26h 55m · 2 stops via Taipei (TPE), Bangkok (BKK)

Good deal price

$1,554

A round-trip at or under $1,554 is a good deal on this route right now.

75% of the fares we found on this route cost more; only a quarter cost less.

Best time to fly

Midday

Midday departures average $1,733 on this route, the lowest of any time of day.

$373 less than the average departure, which is $2,106.

Top Deals on flights from San Francisco to Kolkata

San Francisco, US (SFO) - Calcutta, IN (CCU)

EVA Air

Nov 1

11:50 pm

SFO

26h 55m2 stops · TPE, BKK

Nov 3

4:15 pm

CCU

Search More

as low as

^$735

San Francisco, US (SFO) - Calcutta, IN (CCU)

EVA Air

Nov 1

11:50 pm

SFO

26h 55m2 stops · TPE, BKK

Nov 3

4:15 pm

CCU

Search More

as low as

^$735

San Francisco, US (SFO) - Calcutta, IN (CCU)

EVA Air

Nov 1

11:50 pm

SFO

26h 55m2 stops · TPE, BKK

Nov 3

4:15 pm

CCU

Search More

as low as

^$735

San Francisco, US (SFO) - Calcutta, IN (CCU)

EVA Air

Nov 1

11:30 pm

SFO

27h 15m2 stops · TPE, BKK

Nov 3

4:15 pm

CCU

Search More

as low as

^$735

San Francisco, US (SFO) - Calcutta, IN (CCU)

EVA Air

Nov 1

11:30 pm

SFO

27h 15m2 stops · TPE, BKK

Nov 3

4:15 pm

CCU

Search More

as low as

^$735

San Francisco, US (SFO) - Calcutta, IN (CCU)

EVA Air

Nov 1

11:30 pm

SFO

27h 15m2 stops · TPE, BKK

Nov 3

4:15 pm

CCU

Search More

as low as

^$735

San Francisco, US (SFO) - Calcutta, IN (CCU)

EVA Air

Nov 1

11:50 pm

SFO

35h 20m2 stops · TPE, BKK

Nov 4

12:40 am

CCU

Search More

as low as

^$769

San Francisco, US (SFO) - Calcutta, IN (CCU)

EVA Air

Nov 1

11:50 pm

SFO

35h 20m2 stops · TPE, BKK

Nov 4

12:40 am

CCU

Search More

as low as

^$769

San Francisco, US (SFO) - Calcutta, IN (CCU)

China Airlines

Nov 1

11:40 pm

SFO

27h 5m2 stops · TPE, BKK

Nov 3

4:15 pm

CCU

Search More

as low as

^$851

San Francisco, US (SFO) - Calcutta, IN (CCU)

China Airlines

Nov 1

11:40 pm

SFO

27h 5m2 stops · TPE, BKK

Nov 3

4:15 pm

CCU

Search More

as low as

^$882

San Francisco, US (SFO) - Calcutta, IN (CCU)

KLM

Nov 1

3:10 pm

SFO

28h 5m2 stops · CDG, BLR

Nov 3

8:45 am

CCU

Search More

as low as

^$995

San Francisco, US (SFO) - Calcutta, IN (CCU)

EVA Air

Nov 1

12:40 am

SFO

33h 15m2 stops · TPE, SIN

Nov 2

10:25 pm

CCU

Search More

as low as

^$997

See all 12 dealsShow fewer deals

Best Calcutta Hotel + Flight Packages

San Francisco - Calcutta packages

Laxmi Niwas, Salt Lake, Kolkata, 10mins from Sector 5

Round-trip flight from San Francisco

SFO to CCU

Laxmi Niwas, Salt Lake, Kolkata, 10mins from Sector 5

Kolkata, Salt Lake - Kestopur Bridge

9.2156 Reviews0-Star Hotel

2% Package Savings

^$1,818/person

$3,723 $3,635 total

Incl. Flight + Hotel

Round-trip flight from San Francisco

SFO to CCU

Hotel Brill View

Park Circus, Kolkata, 19, Mirania Road East Topsia, Tangra, Kolkata,

8.316 Reviews3-Star Hotel

2% Package Savings

^$1,817/person

$3,721 $3,633 total

Incl. Flight + Hotel

Round-trip flight from San Francisco

SFO to CCU

Super Townhouse Kaikhali Near Airport

Rajarhat, Kolkata, Plot No. 22/7, Khaikhali, Near Milon Sangha Club, Das Para Airport

7.998 Reviews3-Star Hotel

2% Package Savings

^$1,841/person

$3,770 $3,682 total

Incl. Flight + Hotel

Collection O Biswa Bangla Convention Centre Kolkata Formerly Atithya Inn

Round-trip flight from San Francisco

SFO to CCU

Collection O Biswa Bangla Convention Centre Kolkata Formerly Atithya Inn

Salt Lake, Kolkata, Plot No. Be/22, Street No. 174, Be Block, Action Area I, Newtown, New Town

8.924 Reviews4-Star Hotel

2% Package Savings

^$1,824/person

$3,736 $3,648 total

Incl. Flight + Hotel

Round-trip flight from San Francisco

SFO to CCU

Townhouse Kolkata Allen Park

Park Circus, Kolkata, Plot Number 17/A,Park Circus, Karaya Road

929 Reviews4-Star Hotel

2% Package Savings

^$1,824/person

$3,735 $3,647 total

Incl. Flight + Hotel

Best Calcutta Hotel + Flight + Car Packages

San Francisco - Calcutta packages

ITC Royal Bengal, a Luxury Collection Hotel, Kolkata

Round-trip flight from San Francisco

SFO to CCU

ITC Royal Bengal, a Luxury Collection Hotel, Kolkata

Kolkata, 1 Jbs Haldane Avenue

8.71,341 Reviews5-Star Hotel

Rental car included

Pick-up in CCU

2% Package Savings

^$2,662/person

$5,420 $5,324 total

Incl. Flight + Hotel + Car

Round-trip flight from San Francisco

SFO to CCU

Hotel Kanan Inn, Kolkata Airport

Rajarhat, Kolkata, 40 Italgacha Road, 1 No Airport Gate

7.597 Reviews3-Star Hotel

Rental car included

Pick-up in CCU

2% Package Savings

^$2,047/person

$4,187 $4,093 total

Incl. Flight + Hotel + Car

Hotel O S.S Hotel Near Netaji Subhash Chandra Bose International Airport

Round-trip flight from San Francisco

SFO to CCU

Hotel O S.S Hotel Near Netaji Subhash Chandra Bose International Airport

Rajarhat, Kolkata, Plot No. 8978 City Centre 2, Eco Park Gate 4, Street Number 568

9.45 Reviews4-Star Hotel

Rental car included

Pick-up in CCU

2% Package Savings

^$2,022/person

$4,137 $4,043 total

Incl. Flight + Hotel + Car

Round-trip flight from San Francisco

SFO to CCU

Collection O Biswa Bangla Convention Centre Kolkata Formerly Atithya Inn

Salt Lake, Kolkata, Plot No. Be/22, Street No. 174, Be Block, Action Area I, Newtown, New Town

8.924 Reviews4-Star Hotel

Rental car included

Pick-up in CCU

2% Package Savings

^$2,033/person

$4,159 $4,065 total

Incl. Flight + Hotel + Car

Round-trip flight from San Francisco

SFO to CCU

Townhouse Kolkata Allen Park

Park Circus, Kolkata, Plot Number 17/A,Park Circus, Karaya Road

929 Reviews4-Star Hotel

Rental car included

Pick-up in CCU

2% Package Savings

^$2,032/person

$4,160 $4,064 total

Incl. Flight + Hotel + Car

Round-trip flight from San Francisco

SFO to CCU

Laxmi Niwas, Salt Lake, Kolkata, 10mins from Sector 5

Kolkata, Salt Lake - Kestopur Bridge

9.2156 Reviews0-Star Hotel

Rental car included

Pick-up in CCU

2% Package Savings

^$2,026/person

$4,148 $4,052 total

Incl. Flight + Hotel + Car

Round-trip flight from San Francisco

SFO to CCU

Hotel Brill View

Park Circus, Kolkata, 19, Mirania Road East Topsia, Tangra, Kolkata,

8.316 Reviews3-Star Hotel

Rental car included

Pick-up in CCU

2% Package Savings

^$2,025/person

$4,146 $4,050 total

Incl. Flight + Hotel + Car

Round-trip flight from San Francisco

SFO to CCU

Super Townhouse Kaikhali Near Airport

Rajarhat, Kolkata, Plot No. 22/7, Khaikhali, Near Milon Sangha Club, Das Para Airport

7.998 Reviews3-Star Hotel

Rental car included

Pick-up in CCU

2% Package Savings

^$2,049/person

$4,194 $4,098 total

Incl. Flight + Hotel + Car

When is the best time of day to fly?

Midday (12pm - 2pm) is the cheapest time of day to fly from San Francisco to Kolkata. At $1,733 it is 18% cheaper than the average time. Evening (5pm - 9pm) is the most expensive time, 48% above average.

Show the data

When is the best time of day to fly?
Time of day	Average fare
Early Morning	$2,052
Morning	$2,038
Midday	$1,733
Afternoon	$1,876
Evening	$3,121
Late Night	$1,818

What do round-trip flights from San Francisco to Kolkata cost?

Share of fares in each price range.

Show the data

What do round-trip flights from San Francisco to Kolkata cost?
Price range	Share of fares
$1,000 to $1,500	25%
$1,500 to $2,000	44%
$2,000 to $2,500	21%
$2,500 to $3,000	5%
$3,000 to $3,500	2%
$3,500 to $4,000	2%
$4,000 and up	2%

Frequently Asked Questions

Everything you need to know about flying from San Francisco to Kolkata.

What is the typical flight duration from San Francisco to Kolkata?

San Francisco to Kolkata is about 7,816 miles. There is no scheduled nonstop service on this route, so the journey requires a connection.

Methodology

Flight times and distances come from our flight-schedule database, which combines published airline timetables, U.S. government schedule data from the Bureau of Transportation Statistics (BTS), and observed flight operations from the EUROCONTROL/OpenSky Open Performance Data Initiative (OPDI). The typical flight time is the median scheduled block time across all carriers on the route, computed the same way in both directions so the difference reflects prevailing winds rather than any change in method. Distance is the great-circle distance between the two airports, so the actual flown track is typically 2-5% longer.

Are there any direct flights from San Francisco to Kolkata?

There are no direct flights from San Francisco to Kolkata. The shortest connecting routing is on Singapore Airlines via Singapore, totaling 22 hours and 20 minutes — a 16-hour-25-minute leg, a 90-minute layover, and a 4-hour-25-minute leg. Emirates also connects via Dubai on a longer 26-hour-40-minute itinerary.

Methodology

Airlines and weekly frequencies are compiled from our flight-schedule database, which combines published airline timetables, U.S. government schedule data from the Bureau of Transportation Statistics (BTS), and observed flight operations from the EUROCONTROL/OpenSky Open Performance Data Initiative (OPDI). We count each operating carrier's scheduled weekly departures and the days it flies; where there is no nonstop service, connecting carriers are identified by linking scheduled nonstop segments through common hub airports. Where a median fare is shown for a carrier, it reflects the real fares Priceline users found on this route in the last 72 hours.

What are the ground transportation options in Kolkata?

Kolkata's Netaji Subhas Chandra Bose International Airport is about 17 km from the city center, and ground transport includes prepaid and metered taxis available 24/7, app-based cabs like Uber and Ola, air-conditioned WBSTC buses to Howrah, Esplanade, Garia, and Tollygunge, a suburban rail link from Biman Bandar station to Sealdah and other stops, and a car rental desk in Arrivals. Prepaid taxis are the most-used and most reliable option, avoiding haggling and last-minute cancellation issues, while the suburban rail line has seen poor patronage and is often replaced by bus or taxi in practice. Ride-share services are also available around the clock, with typical Uber fares around ₹970 from the airport to the city. The fastest door-to-door option is a taxi or ride-share, taking roughly 18–25 minutes to central Kolkata, while the air-conditioned buses are the cheapest but take 75–90 minutes depending on the destination.

References

Transport Detail Page | AIRPORTS AUTHORITY OF INDIAaai.aero · Published Mar 31, 2026
Kolkata Netaji Subhash Chandra Bose Intlprioritypass.com · Published Dec 31, 2024
Netaji Subhas Chandra Bose International Airportflydubai.com
How to get from Kolkata Airport (CCU) to Kolkata | Uberuber.com · Published Jun 1, 2026
Kolkata Airport Dropoff: How to Get There | Uberuber.com
...rome2rio.com
Netaji Subhash Chandra Bose Kolkata International Airport, (CCU)flightsmojo.in · Published Jan 19, 2026

Are overnight (red‑eye) flights available from San Francisco to Kolkata?

No overnight or red-eye flights operate from San Francisco to Kolkata — neither nonstop nor connecting itineraries have an overnight long leg. Travelers making this trip will fly daytime or evening segments that do not meet the red-eye criteria.

Methodology

Red-eye flights are identified from scheduled local departure and arrival times and block times in our flight-schedule database — built from published airline timetables and official schedule data, including U.S. Department of Transportation records for domestic routes. A flight counts as a red-eye when it departs in the afternoon or evening (3 p.m. or later local time) or in the early hours before 4 a.m., and is in the air at some point between midnight and 4 a.m. local time at both its departure airport and its arrival airport. An evening flight that lands before midnight at its destination is never counted, nor is a morning departure or a daytime long-haul that reaches the next calendar date only because of time zones. Each red-eye is labelled with its timing (for example, overnight and landing the next morning, or late-night and landing after midnight). For connecting itineraries the same rule is applied to the longer leg, from one representative day's flight search.

Which airlines usually operate this route from San Francisco to Kolkata?

There is no nonstop service from San Francisco to Kolkata. The quickest one-stop routing is on Singapore Airlines via Singapore, taking about 22 hours 20 minutes total. Emirates also offers a one-stop connection via Dubai, with a total journey time of about 26 hours 40 minutes. Singapore Airlines is a Star Alliance member, while Emirates is not part of an alliance.

Methodology

Airlines and weekly frequencies come from our flight-schedule database, which combines published airline timetables, U.S. government schedule data from the Bureau of Transportation Statistics (BTS), and observed flight operations from the EUROCONTROL/OpenSky Open Performance Data Initiative (OPDI). We count each operating carrier's scheduled weekly departures and the days it flies; where there is no nonstop service, connecting carriers are identified by linking scheduled nonstop segments through common hub airports. Where a typical fare is shown for a carrier, it is the median of the real fares Priceline users found on this route in the last 72 hours.

Which airport should I use in Kolkata?

Kolkata has one commercial airport, Netaji Subhas Chandra Bose International Airport, located about 17 km northeast of the city centre. It serves domestic and international flights and is the primary gateway for the region.

How do I get to San Francisco Intl Airport from the city center?

Reaching San Francisco International Airport from downtown is straightforward: BART rapid rail runs directly from the city center to the airport's International Terminal, making it the fastest and most popular transit option, while SamTrans buses provide a budget-friendly alternative. Ride-share services like Uber and Lyft, along with taxis, offer convenient door-to-door service from designated pickup areas. Driving yourself is also an option, with multiple short- and long-term parking garages near the terminals, though costs are higher than public transit.

References

SFO Airport to Downtown San Francisco: Complete Guide 2025radicalstorage.com · Published Mar 19, 2025
Ground Transportation | San Francisco International Airportflysfo.com
Public Transit | San Francisco International Airportflysfo.com
AirTrain (San Francisco International Airport)en.wikipedia.org · Published May 12, 2026
Transportation Basics: How to Get Around San Francisco | San Francisco Travelsftravel.com · Published Aug 24, 2022
A Guide to San Francisco Airport (SFO) | Chasechase.com
How to get from San Francisco Airport (SFO) to San Francisco, CA | Uberuber.com · Published Sep 8, 2026
SFO Airport Shuttle & Car Service | GO Airport Shuttlegowithus.com · Published Jun 29, 2026

Are there hotels or sleeping facilities at Kolkata airport?

Kolkata Airport has retiring rooms and dormitory beds inside the terminal for short stays, available to passengers with a confirmed onward flight and booked in person through the Airport Manager’s office. Nearby hotels include the Holiday Inn Express Kolkata Airport, located 0.4 miles from the airport with no shuttle service. The Novotel Kolkata Hotel & Residences in Newtown is about a 20-minute drive from the airport and offers a shuttle on call for an additional charge.

References

加爾各答機場假日飯店ihg.com
加尔各答机场假日酒店ihg.com
Kolkata Airport Guide (CCU) - Sleeping in Airportssleepinginairports.net · Published Aug 8, 2018
Backpacker Hostels near Netaji Subhash Chandra Bose International Airport (CCU), Kolkata 2026 (from $4 🤑)hostelz.com · Published Apr 27, 2026
Kolkata Airport or Netaji Subhash Chandra Bose International Airport (CCU) - All You Need to Knowmagicbricks.com · Published Jun 20, 2023
Hotel in Kolkata-Novotel Kolkata - ALLall.accor.com
5 - Star Hotel in Newtown Kolkata | Hotel Near Kolkata Airportnovotelkolkata.com · Published Jun 16, 2026

What facilities and services are available to travelers at Kolkata Netaji Subhash Chandra Bose International Airport?

Kolkata Netaji Subhash Chandra Bose International Airport offers free Wi-Fi, mobile charging points, ATMs, currency exchange, and international SIM cards for arriving travelers. There are nursing rooms, a prayer room, a pharmacy, 24x7 medical service managed by Peerless Hospital, and luggage storage with a maximum of 30 days. Duty-free shopping and full-service dining are available, along with a massage centre or foot massage chairs and smoking rooms located at the check-in area, Security Hold Area, and arrivals. Passengers can also use self-check-in kiosks, transfer desks, and a left luggage facility at the terminal.

References

Kolkata Airport (CCU) Information and Travel Guide | Air Indiaairindia.com
Kolkata Passenger Info | AIRPORTS AUTHORITY OF INDIAaai.aero · Published Dec 2, 2016
Airport Passenger-Info Layout | AIRPORTS AUTHORITY OF INDIAaai.aero
Kolkata Airport or Netaji Subhash Chandra Bose Airport: Detailshousing.com · Published Jan 8, 2024
Kolkata Subhas Chandra Bose International (CCU) (VECC) passenger reviews | Flightradar24flightradar24.com
Explore Kolkata Airport Lounges at CCUloungepair.com · Published Jan 24, 2025
Travel Club CCU AIRPORT Terminal 1 Kolkata Netaji Subhash Chandra Bose Intl | Priority Passprioritypass.com
Netaji Subhas Chandra Bose International Airportflydubai.com

Are there accessible services or children's facilities at the San Francisco and Kolkata airports?

San Francisco International Airport offers wheelchair and guided assistance through your airline, with dedicated TSA Cares screening lanes, service-animal relief areas, a sensory room, a Quiet Airport program, and a Hidden Disabilities Sunflower Lanyard program; reserve wheelchair help in advance by contacting your airline or requesting it on the airline's website. Netaji Subhas Chandra Bose International Airport in Kolkata provides wheelchair assistance by request at booking or at the airline ticketing counter, along with disabled-friendly toilets, ambulift services on a payment basis, and child care rooms at four departure and two arrival locations. Travelers needing mobility support should arrange it through their airline before the flight at both airports.

References

Accessibility | San Francisco International Airportflysfo.com
sfo - Disabled access at San Francisco international airport? - Travel Stack Exchangetravel.stackexchange.com · Published Dec 16, 2014
COVID-19 HEALTH ORDER UPDATEmedia.api.sf.gov · Published Mar 18, 2026
Airport Passenger-Info Layout | AIRPORTS AUTHORITY OF INDIAaai.aero
Netaji Subhas Chandra Bose International Airportflydubai.com
Kolkata Airport (CCU) Information and Travel Guide | Air Indiaairindia.com

What aircraft are typically used on flights from San Francisco to Kolkata?

No airline currently operates a nonstop flight between San Francisco and Kolkata, so all itineraries require a connection. Emirates connects through Dubai using an Airbus A380-800 on the long leg and a Boeing 777-300ER on the short leg, while Singapore Airlines connects through Singapore with an Airbus A350-900 on the long leg and a Boeing 737 MAX 8 on the short leg.

Methodology

Aircraft types come from our flight-schedule database, which combines published airline timetables, U.S. government schedule data from the Bureau of Transportation Statistics (BTS), and observed flight operations from the EUROCONTROL/OpenSky Open Performance Data Initiative (OPDI). For U.S. routes the type is grounded in the tail number that actually operated the flight; elsewhere it comes from the airline's filed equipment code. Where the source does not commit to a specific variant we name the aircraft family (for example Airbus A320 family) rather than guess, and where no reliable type is on file the aircraft is omitted rather than estimated. Types describe typical scheduled equipment and can vary with seasonal or day-of-week assignments and last-minute swaps.

Which airline alliances serve flights from San Francisco to Kolkata?

There is no nonstop service from San Francisco to Kolkata; the route is flown via one-stop connections, with Singapore Airlines routing through Singapore and Emirates routing through Dubai. Singapore Airlines is a Star Alliance member, while Emirates belongs to no alliance. Other alliances may reach Kolkata via connections, but these two carriers are the ones currently scheduled on the route.

Methodology

What are the best airport lounge options when departing from San Francisco?

Departing from San Francisco, you can access The Club SFO in Terminal 1, which offers a full-service bar, spa-style showers, a forest-themed kids' room, and light therapy, with access via Priority Pass, LoungeKey, or a paid walk-in rate of $45. The Alaska Lounge near Gate B6 is open to any passenger for a $60 door fee, while the American Airlines Admirals Club near Gate B13 offers showers and access for $79 to American or oneworld passengers. In Terminal 3, the Centurion Lounge near Gate F2 provides dining, a wine bar, and is available to American Express Platinum and Centurion cardholders. The United Polaris Lounge in the International Terminal G offers shower suites and a dedicated rest zone for eligible premium cabin passengers.

References

San Francisco Airport Guide (SFO) - Sleeping in Airportssleepinginairports.net · Published Oct 1, 2018
The Club SFO Review: Priority Pass Lounge in SFO Terminal 1 - Roameroame.travel · Published Oct 27, 2024
The Club SFO SFO AIRPORT Terminal 1 San Francisco CA Intl | Priority Passmy.prioritypass.com
Priority Pass SFO: What You Need to Know - NerdWalletnerdwallet.com · Published Jan 12, 2021
San Francisco Amex Centurion Lounge [SFO] – Location, Hoursupgradedpoints.com · Published Jul 28, 2026
The Club SFO | San Francisco Airport Lounge | The Clubtheclubairportlounges.com
San Francisco International Airport SFO Lounges - SFO Airport Guide and lounges. | Priority Passmy.prioritypass.com

Are same‑day changes or standby possible on this route?

Policies vary by airline and fare; flexible and premium cabin tickets generally allow same-day changes or standby, while Basic Economy and many discounted fares do not.

Flight Deals from San Francisco to Calcutta from $735

Good to Know

Top Deals on flights from San Francisco to Kolkata

Best Calcutta Hotel + Flight Packages

Best Calcutta Hotel + Flight + Car Packages

When is the best time of day to fly?

What do round-trip flights from San Francisco to Kolkata cost?

Frequently Asked Questions

What is the typical flight duration from San Francisco to Kolkata?

Are there any direct flights from San Francisco to Kolkata?

What are the ground transportation options in Kolkata?

Are overnight (red‑eye) flights available from San Francisco to Kolkata?

Which airlines usually operate this route from San Francisco to Kolkata?

Which airport should I use in Kolkata?

How do I get to San Francisco Intl Airport from the city center?

Are there hotels or sleeping facilities at Kolkata airport?

What facilities and services are available to travelers at Kolkata Netaji Subhash Chandra Bose International Airport?

Are there accessible services or children's facilities at the San Francisco and Kolkata airports?

What aircraft are typically used on flights from San Francisco to Kolkata?

Which airline alliances serve flights from San Francisco to Kolkata?

What are the best airport lounge options when departing from San Francisco?

Are same‑day changes or standby possible on this route?

Flights to Kolkata