Kolkata to San Francisco (CCU–SFO) — Airlines, Schedules & Connections
No flights match your filters.
No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.
Most recently operated nonstop flights — the month shown is when each was last scheduled. Most destinations remain reachable with a connection.
No discontinued nonstop flights on record for this route.
CCU–SFO is served by 1 airline with nonstop service. Air India leads the route. The flight covers 7,816 miles in approximately 15h 10m. Beyond nonstop, 1-stop connecting options are also available.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| AI Air India | 10 | 77W | 15h10 | – | Star Alliance | – |
Weekly Schedule Pattern
Connection Landscape
On-Time Performance
Travel Essentials
CCU: IST · SFO: PDT
When it's 6:00 PM in Kolkata, it's 5.5:00 AM in San Francisco.
Indian passport holders need a visa to enter the United States. The B-1/B-2 tourist and business visa is the standard category. Apply online through the DS-160 form at ceac.state.gov, pay the $185 application fee, and schedule an in-person interview at a US consulate in India. Interview wait times vary by city and season. Check ustraveldocs.com/in for current wait times.
B-1/B-2 visas are typically issued for 10 years with multiple entries. Each stay is limited to 6 months as determined by the CBP officer at entry. Indian nationals are not eligible for the Visa Waiver Program or ESTA. There is no visa on arrival.
BART from SFO station (free AirTrain from any terminal to the station) to downtown San Francisco takes 30–40 minutes ($10.45 to Embarcadero). Traffic on 101 can make taxis and ride-hails much slower during peak hours; BART skips all of that. BART also reaches Oakland, Berkeley, and Millbrae for Caltrain connections.Ride-hails from SFO use a dedicated garage pickup area; follow signs. Taxis are metered; downtown SF costs $40–60. Caltrain to the Peninsula (Mountain View, Palo Alto, San Jose) requires taking BART to Millbrae station for the transfer. Rental cars are at a consolidated facility accessible by AirTrain.
Coastal fog dominates the climate pattern. The thick marine layer ("Karl the Fog") rolls into SFO from the Pacific regularly in summer (June–September), causing significant low-visibility delays even on days that appear sunny inland. Morning fog burns off by afternoon most days, but persistent IFR conditions can last all day. This is the primary flight disruption risk at SFO.
Temperatures are mild year-round (10–20°C) with little seasonal variation. Winters bring rain (December–March) and occasional atmospheric river events that cause brief but intense flooding on the 101. Summers are cool. Pack a light jacket year-round. Wind off the bay affects small aircraft approach paths.
CCU–SFO Quick Facts
Frequently Asked Questions
Flights from CCU to SFO
Netaji Subhash Chandra Bose International Airport (CCU) and San Francisco International Airport (SFO) are connected by nonstop service from Air India. With 10 weekly departures, this is a regularly served route.
CCU to SFO Flight Duration and Schedule
Nonstop flight time from CCU to SFO is about 15 hours 10 minutes gate to gate. The route covers a distance of 7,816 miles (12,578 km). There are approximately 10 weekly flights outbound and 14 return, totaling 24 flights per week in both directions.
Connecting Options and Alternatives
1-stop connecting options are also available, commonly via Vancouver, Hamad and Singapore Changi. Two-stop connections are also available via intermediate hubs.