Delhi to San Francisco non-stop on Air India — schedule, fare trends, baggage, DEL T3 and SFO terminals, plus US B1/B2 visa rules for Indians.
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Quick answer: Delhi to San Francisco non-stop flights take about ≈ 16–17h non-stop (DEL → SFO); SFO → DEL return makes a refuelling stop in Kolkata, operated by Air India (non-stop); United, Lufthansa, Emirates, Qatar Airways, Singapore Airlines, Cathay Pacific (1-stop), Air India non-stop, increased to ~10x weekly from March 2026 + 1-stop options. Indian passport holders should check the visa requirement summarised below. Use the live search above to compare today's cheapest DEL–SFO fare across every airline, OTA and travel agent in one place.
Last reviewed July 2026 by the FlightGPT flights desk · route facts cross-checked against DGCA and the Airports Authority of India (AAI) · how we collect fares · editorial policy · fact-checking · fares are live — verify the final price in search before booking.
Looking for cheap flights from Delhi to San Francisco? FlightGPT compares live DEL to SFO fares across every connected source — Indian carriers, Gulf hubs, OTAs and trusted travel agents — and shows the cheapest options side by side. Whether you want a Delhi to San Francisco non-stop tomorrow, a last-minute weekend deal or the lowest price three months out, every active Delhi-San Francisco fare is one search away.
Air India is the primary non-stop carrier and has made Delhi its sole gateway to San Francisco, raising frequency to roughly 10 weekly flights from March 2026 on the Boeing 777. A key nuance: the outbound DEL → SFO is non-stop, but the return SFO → DEL includes a technical refuelling stop in Kolkata (passengers stay on board), a consequence of longer routings since Pakistani airspace closed to Indian carriers. One-stop alternatives run on United, Lufthansa, Emirates, Qatar Airways, Singapore Airlines and Cathay Pacific.
The distance is about 12,300 km, among the longest from India. The non-stop DEL → SFO runs roughly 16–17 hours, now routed over Mongolia and the Pacific to avoid closed airspace. On the return, the Kolkata refuelling halt adds time but you don't change aircraft or terminal. One-stop options total 18–24 hours depending on the hub — choose based on price, schedule and how you feel about the return tech stop.
Fares peak in the Indian summer holidays (May–July), the festive/Diwali season (October–November) and Christmas–New Year. The cheaper windows are February–early April and September. San Francisco is pleasant much of the year, so timing is driven more by Indian travel demand than Bay Area weather. We never quote a fixed rupee fare for a route this volatile — check live fares in the FlightGPT search.
Book early on ultra-long-haul: 2–4 months ahead, and more for summer and December. The Air India non-stop is the most convenient outbound option, but Gulf, Singapore and Cathay one-stops sometimes undercut it — especially in shoulder months — at the cost of extra hours. If the return Kolkata stop matters to you, a one-stop via Asia or the Gulf can be a comparable alternative. Mid-week departures usually help.
Air India departs Delhi T3 and arrives at San Francisco International (SFO), the Bay Area's main international gateway. From SFO, BART rail connects directly to downtown San Francisco and the wider Bay Area in around 30 minutes; taxis and ride-shares serve Silicon Valley to the south. Allow generous time for US immigration on arrival at SFO.
Air India economy to the USA follows the piece system — generally 2 pieces of 23 kg each + 1 cabin bag, with more in Premium Economy and Business. See the Air India baggage guide for current piece limits and excess charges. On the return via Kolkata your allowance is unchanged (it's the same flight). If you fly a one-stop carrier instead, check that carrier's US-bound piece allowance and request vegetarian or Jain meals at booking.
Indian passport holders need a valid US visa before travel — for tourism or visiting family this is normally the B1/B2 visitor visa, requiring a DS-160 form, fee and in-person consular interview. Students and workers (very common on this Bay Area route) need the relevant visa category. There is no visa-on-arrival for Indians to the USA, and interview waits can be long, so apply well ahead. Verify current rules on the official US travel portal; our visa guide for Indian travellers outlines the B1/B2 process.
The strongest one-stop hubs are Doha (DOH) on Qatar Airways, Dubai (DXB) on Emirates, Singapore (SIN) on Singapore Airlines and Hong Kong (HKG) on Cathay Pacific, plus Frankfurt on Lufthansa and United's network. These add hours but can offer lower fares, a true non-stop return (no Kolkata halt) or better timings. Pick by total time, fare and layover comfort.
For a 16–17 hour flight, choose seats early, hydrate and move around. At SFO, BART is the simplest way into the city; for Silicon Valley destinations, a ride-share or Caltrain connection works better. Keep your visa, return ticket and US address handy for immigration. If you have onward US flights, allow a long connection at SFO to clear immigration and recheck bags.
San Francisco and the Bay Area are the heart of global tech, home to a huge Indian community and gateway to the wider US West Coast. The Golden Gate Bridge, Alcatraz, cable cars and nearby wine country and national parks make it a great trip beyond business and study. With Air India's expanded non-stop from Delhi, it's the most direct Bay Area link from India.
The outbound Delhi → San Francisco leg is non-stop on Air India, at roughly 16–17 hours. The return San Francisco → Delhi makes a technical refuelling stop in Kolkata, where passengers stay on the same aircraft, due to longer routings around closed airspace.
Air India increased the route to about 10 weekly flights from March 2026, after making Delhi its sole gateway to San Francisco. It flies the Boeing 777 and is the main non-stop carrier on this Bay Area link.
Since Pakistani airspace closed to Indian carriers, Air India reroutes over Mongolia and the Pacific, lengthening the westbound leg. To cover it safely, SFO → DEL makes a quick refuelling halt in Kolkata; passengers remain on board and don't change terminals.
Yes. Indians need a valid US visa before travel — usually the B1/B2 visitor visa for tourism or family, or the relevant category for students and workers. There is no visa-on-arrival, and interview waits can be long, so apply well ahead.
The non-stop DEL → SFO runs roughly 16–17 hours over about 12,300 km. The return is longer because of the Kolkata refuelling stop. One-stop alternatives total around 18–24 hours depending on the hub.
San Francisco is 12 hours 30 minutes behind Delhi during US daylight saving time and 13 hours 30 minutes behind in winter. India does not observe daylight saving, so the gap shifts twice a year.
BART rail connects directly from SFO to downtown San Francisco and the wider Bay Area in around 30 minutes. For Silicon Valley to the south, a ride-share or Caltrain connection is better. Taxis and ride-shares are widely available.
Sometimes. Gulf, Singapore or Cathay one-stops can be cheaper, offer a true non-stop return without the Kolkata halt, or fit your schedule better, at the cost of extra hours. Compare both for your dates in the FlightGPT search.
FlightGPT is a natural-language flight search: ask the way you'd ask a friend, and it compares live DEL–SFO fares across every airline, OTA and travel agent. Try one:
There is no single "cheapest day" to fly Delhi to San Francisco — the lowest fare is the one you find by comparing live. Open the search above to line up Delhi–San Francisco prices across Air India (non-stop); United, Lufthansa, Emirates, Qatar Airways, Singapore Airlines, Cathay Pacific (1-stop); booking ahead and avoiding peak weekends typically trims 25–40 percent off the walk-up fare.
Flying Delhi to San Francisco at short notice doesn't always mean overpaying. Off-peak departures and unsold seats on Air India (non-stop); United, Lufthansa, Emirates, Qatar Airways, Singapore Airlines, Cathay Pacific (1-stop) can surface real same-week deals. Put your date into the FlightGPT search above and we'll show every available DEL–SFO fare side by side in seconds.
Most travellers prefer the Delhi to San Francisco non-stop option. The direct Delhi-San Francisco flight time is ≈ 16–17h non-stop (DEL → SFO); SFO → DEL return makes a refuelling stop in Kolkata. If you are flexible, 1-stop alternatives through major hubs can be 15-30 percent cheaper. FlightGPT lets you filter by "Direct only" or compare both side by side — useful when you want the cheapest Delhi San Francisco ticket but are open to a layover.
Delhi–San Francisco pricing rewards comparison over loyalty: the best value rotates between low-cost and full-service carriers depending on the date. FlightGPT's grid surfaces every Delhi San Francisco fare with baggage and meals counted in, so the genuinely cheapest all-in ticket is the one that rises to the top.