{ "response": { "Key": "DEL-SFO", "orig": { "code": "DEL", "type": "airport", "city": "Delhi", "fullCity": "Delhi, India", "airport": "Indira Gandhi Intl Airport" }, "dest": { "code": "SFO", "type": "airport", "city": "San Francisco", "fullCity": "San Francisco, California", "airport": "San Francisco Intl Airport" }, "faq": { "q0": { "question": "What is the typical flight duration from Delhi to San Francisco?", "answer": "A nonstop flight from Delhi (DEL) to San Francisco (SFO) typically takes about 15 hours 30 minutes to 16 hours westbound. The return eastbound flight is faster, usually around 14 hours 30 minutes, due to tailwinds. With one stop, total travel time often ranges from 19 to over 24 hours, with common layovers in the Middle East or Europe." }, "q1": { "question": "Are there any direct flights from Delhi to San Francisco?", "answer": "Air India flies nonstop from Delhi to San Francisco with 13 weekly flights, operating daily with departures at various times. That's the only carrier offering direct service on this route.", "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.", "toolsUsed": [ "route_airlines" ] }, "q2": { "question": "Are there visa requirements to travel from Delhi to San Francisco?", "answer": "Yes, there are visa requirements. For an Indian citizen traveling from Delhi to San Francisco, a valid U.S. visa is required for entry, unless they are a citizen of a Visa Waiver Program country (India is not). For a U.S. citizen traveling from San Francisco to Delhi, a valid Indian visa or an e-Visa is required for entry into India. Travelers of other nationalities should check both U.S. and Indian visa requirements based on their citizenship." }, "q3": { "question": "What are the ground transportation options in San Francisco?", "answer": "From SFO, BART rapid rail is the fastest and most-used way to reach downtown San Francisco, with trains departing directly from the International Terminal. Ride-share services like Lyft, Uber, and Wingz pick up on Level 5 of the Domestic Garage, while taxis are available at the arrivals curbside. Waymo autonomous rides are also an option from the Rental Car Center for select passengers. Rental cars are accessible via the AirTrain Blue Line, and hotel shuttles serve many local properties.", "toolsUsed": [], "references": [ { "url": "https://flysfo.com/passengers/ground-transportation", "title": "Ground Transportation | San Francisco International Airport", "favicon": "https://flysfo.com/themes/custom/blueskies/favicon.ico", "time_published": "2026-04-08T21:19:40Z" }, { "url": "https://flysfo.com/de/node/10188", "title": "Ground Transportation | San Francisco International Airport", "favicon": "https://flysfo.com/themes/custom/blueskies/favicon.ico", "time_published": "2026-04-08T21:19:40Z" }, { "url": "https://en.wikipedia.org/wiki/SFO", "title": "San Francisco International Airport", "time_published": "2026-04-27T05:13:36Z" }, { "url": "https://en.wikipedia.org/wiki/San_Francisco_International_Airport", "title": "San Francisco International Airport", "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png", "time_published": "2026-07-18T07:52:09Z" }, { "url": "https://www.flysfo.com/pt-br", "title": "Home Page | San Francisco International Airport", "time_published": "2026-01-01T00:00:00Z" } ] }, "q4": { "question": "When is the cheapest time to fly from Delhi to San Francisco?", "answer": "The cheapest time to fly from Delhi to San Francisco is during the low season months of September, April, October, and August, with average fares around $870–$928. The most expensive period is the high season in December, June, July, and March, where prices average $1,049–$1,168.", "methodology": "This 'good deal' estimate shows a representative best price for each departure date across roughly a 12-month window (about 3 months back and 9 months forward). It is built from real flight prices found by Priceline users searching this route, accumulated into a price history for each departure date. Rather than weighting all of that history equally, we apply exponential time decay so recent prices dominate — a price seen yesterday counts almost in full, one from about a month ago roughly a third, and prices from a few months back very little — giving a figure that tracks today's market instead of a stale long-run average. Clear price outliers are removed before any calculation, departure dates with no observations are filled in from nearby dates, and the resulting curve is lightly smoothed so it reads as a clean seasonal trend rather than day-to-day noise. For this route, fares for the requested travel direction were unavailable, so the pattern shown is derived from the reverse direction, which shares the same seasonal demand cycle.", "toolsUsed": [ "seasonal_prices" ] }, "q5": { "question": "How far in advance should I book tickets from Delhi to San Francisco?", "answer": "For Delhi to San Francisco, the best fares are typically found when booking 8 to 11 weeks ahead, with an average price around $1,037. Booking about 60 days out can yield fares as low as $1,031, while last-minute tickets (within a week) jump to around $1,419. During peak summer or holiday periods, demand pushes prices higher, so aiming for the earlier end of that window or slightly beyond can help lock in a better deal.", "methodology": "This booking-window guidance is built from the same real flight prices found by Priceline users searching this route, re-grouped by how many days before departure each price was seen (from the departure day out to about 180 days ahead) across the route's price history. At each booking lead time we report the 25th-percentile price — the cheaper end of what travelers were quoted, rather than the rock-bottom minimum (which can be a fluke) or the average (which is pulled up by expensive last-minute fares). The buy-or-wait advice then applies a risk premium that grows as departure approaches, since seat availability shrinks and prices become less predictable; using that adjusted curve we flag windows where waiting is likely to save a meaningful amount (at least $20 or 5%) versus windows where booking now is the better call. Isolated single-day recommendations are filtered out, so the advice only reflects a window that holds for several days in a row. For this route, fares for the requested travel direction were unavailable, so the pattern shown is derived from the reverse direction, which shares the same seasonal demand cycle.", "toolsUsed": [ "booking_timing" ] }, "q6": { "question": "Are overnight (red‑eye) flights available from Delhi to San Francisco?", "answer": "No nonstop red-eyes operate from Delhi to San Francisco, but connecting itineraries whose long leg is an overnight flight are available. On United via Newark, the overnight leg departs Delhi at 11:35 PM and arrives in Newark at 6:20 AM. On Air Canada via Toronto, the overnight leg departs Delhi at 10:50 PM and arrives in Toronto at 5:30 AM.", "methodology": "Red-eye flights are identified from scheduled local departure and arrival 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 — flagging services that depart late at night and arrive the following morning; for connecting itineraries the red-eye is based on the timing of the overnight long-haul leg.", "toolsUsed": [ "redeye_flights" ] }, "q8": { "question": "If I need a connection, what are common layover cities between Delhi and San Francisco?", "answer": "Common layovers include Dubai, Doha, Frankfurt, and Amsterdam. Dubai and Doha offer visa‑free transit for many nationalities and extensive global networks, while Frankfurt and Amsterdam provide efficient European connections and streamlined transfers." }, "q9": { "question": "How reliable are on‑time departures on this route from Delhi to San Francisco?", "answer": "On‑time reliability is moderate, with winter fog in Delhi sometimes causing delays. Early departures on Air India or United often perform better, as they avoid cascading delays later in the day." }, "q10": { "question": "Which months have the best weather for traveling to San Francisco?", "answer": "September to November offers the warmest, sunniest weather with fewer tourists than summer." }, "q11": { "question": "What documents should I bring with me to the airport when flying from Delhi to San Francisco?", "answer": "Bring a passport valid for at least six months, a valid U.S. visa or ESTA authorization, proof of onward or return travel, a payment method for baggage, and any required vaccination certificates." }, "q12": { "question": "Which airport should I use in San Francisco?", "answer": "San Francisco International is the primary airport, located 13 miles south of downtown. It serves as a major hub for United Airlines and Alaska Airlines, with extensive domestic and international connections. Oakland International, across the bay, is a focus city for Southwest Airlines and offers many low‑cost and domestic flights. San Jose International, further south, is convenient for Silicon Valley business travellers and is served by several major carriers." }, "q13": { "question": "How do I get to Indira Gandhi Intl Airport from the city center?", "answer": "The most popular and fastest way to reach Indira Gandhi International Airport (DEL) from central Delhi is the Delhi Metro's Airport Express Line, which connects New Delhi Railway Station to the airport in about 20 minutes. Ride‑share services like Uber and Ola, as well as prepaid taxis, offer door‑to‑door convenience at a higher cost, though travel time can vary widely with traffic. DTC and private buses also serve the airport but are less direct and generally slower. Driving and parking is possible, with both short‑term and long‑term lots available, but it's rarely the best option given Delhi's congestion and the efficiency of the metro.", "toolsUsed": [], "references": [ { "url": "https://en.wikipedia.org/wiki/AeroTrain%20%28Dulles%20International%20Airport%29", "title": "AeroTrain (Dulles International Airport)", "time_published": "2026-03-17T21:57:59Z" }, { "url": "https://en.wikipedia.org/wiki/Dulles_International_Airport_Main_Terminal", "title": "Dulles International Airport Main Terminal", "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png", "time_published": "2026-07-04T23:35:29Z" }, { "url": "https://stanstedairport.com/getting-to-and-from/stansted-airport-train-station/", "title": "Stansted Airport Train Station | London Stansted Airport", "favicon": "https://assets.live.dxp.maginfrastructure.com/f/73114/150x150/fc2528bf7d/stn-favicon.png", "time_published": "2026-06-23T16:16:40Z" }, { "url": "https://stanstedairport.com/at-the-airport/airport-facilities/free-wifi", "title": "Wi-Fi | London Stansted Airport", "time_published": "2026-05-01T00:00:00Z" }, { "url": "https://en.wikipedia.org/wiki/Dulles_International_Airport_station", "title": "Dulles International Airport station", "time_published": "2026-06-03T10:24:50Z" } ] }, "q14": { "question": "Are there hotels or sleeping facilities at San Francisco airport?", "answer": "San Francisco International Airport (SFO) has a Grand Hyatt hotel directly connected to the terminals via the AirTrain, and there are hourly nap rooms and showers available in the International Terminal for resting during a layover. If you prefer a traditional hotel nearby, the San Francisco Airport Marriott Waterfront and The Westin San Francisco Airport are both located minutes away and offer complimentary shuttle service to and from the airport terminals.", "toolsUsed": [], "references": [ { "url": "https://www.sleepinginairports.net/guides/san-francisco-airport-guide.htm", "title": "San Francisco Airport Guide (SFO) - Sleeping in Airports", "favicon": "https://www.sleepinginairports.net/nitropack_static/oBWrHkPujHTPIaVWqdDSDhClXUyrYhhb/assets/images/optimized/rev-b853180/www.sleepinginairports.net/wp-content/uploads/2018/09/cropped-sia-logo-180x180.png", "time_published": "2018-10-02T00:00:42Z" }, { "url": "https://www.marriott.com/en-us/hotels/sfobg-san-francisco-airport-marriott-waterfront/overview/?EM=DNM_SANFRANCISCOAIRPORTMARRIOTT.COM", "title": "SFO Airport Hotel | San Francisco Airport Marriott Waterfront", "time_published": "2025-02-19T00:00:00Z" }, { "url": "https://www.marriott.com/en-us/hotels/sfowi-the-westin-san-francisco-airport/overview/?scid=f2ae0541-1279-4f24-b197-a979c79310b0", "title": "The Westin San Francisco Airport (Official Site) - SFO Hotel", "time_published": "2025-02-19T00:00:00Z" }, { "url": "https://www.flysfo.com/passengers/shop-dine-relax?content_type=things_to_do&location=3&sort_by=random", "title": "Shop/Dine/Relax | San Francisco International Airport", "time_published": "2025-10-22T23:13:26Z" }, { "url": "https://www.flysfo.com/passengers/shop-dine-relax?content_type=All&gate_area=All&https://www.flysfo.com/passengers/shop-dine-relax?https://www_flysfo_com/passengers/shop-dine-relax?https://www_flysfo_com/passengers/shop-dine-relax?location=2&location=1659&security=All&service_tags=All&sort_by=random", "title": "Shop/Dine/Relax | San Francisco International Airport", "time_published": "2025-10-22T23:13:26Z" }, { "url": "http://www.flysfo.com/de/node/14691", "title": "Press Releases | San Francisco International Airport", "time_published": "2025-07-09T15:54:20Z" } ] }, "q15": { "question": "Are there currency exchange offices, prayer rooms and Wi‑Fi at San Francisco Intl Airport?", "answer": "San Francisco International Airport (SFO) offers currency exchange services and free Wi‑Fi throughout the terminals. There is a Reflection Room for quiet self‑reflection, meditation, and prayer, though a dedicated multi‑faith chapel is not mentioned. Currency exchange counters are available in the International Terminal, and the free Wi‑Fi network covers all public areas.", "toolsUsed": [], "references": [ { "url": "https://flysfo.com/passengers/shop-dine-relax", "title": "Shop/Dine/Relax | San Francisco International Airport", "time_published": "2026-03-12T16:15:43Z" }, { "url": "http://www.flysfo.com/welcome-terminal-3", "title": "Welcome to Terminal 3 | San Francisco International Airport", "favicon": "http://www.flysfo.com/themes/custom/blueskies/favicon.ico", "time_published": "2026-05-08T21:34:33Z" }, { "url": "https://en.wikipedia.org/wiki/San_Francisco_International_Airport", "title": "San Francisco International Airport", "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png", "time_published": "2026-07-18T07:52:09Z" }, { "url": "https://en.wikipedia.org/wiki/San%20Francisco%20International%20Airport", "title": "San Francisco International Airport", "time_published": "2026-04-28T21:12:40Z" }, { "url": "https://flysfo.com/passengers/services-amenities", "title": "Services & Amenities | San Francisco International Airport", "favicon": "https://flysfo.com/themes/custom/blueskies/favicon.ico", "time_published": "2026-03-03T22:32:54Z" } ] }, "q17": { "question": "What aircraft are typically used on flights from Delhi to San Francisco?", "answer": "On the nonstop Delhi–San Francisco route, Air India uses the Boeing 777-300ER. Connecting itineraries feature a wide range of long-haul aircraft, including the Boeing 787-9, Boeing 777, Airbus A380-800, and Airbus A350-900, depending on the airline and routing. The exact aircraft can vary by day and airline, but Wi-Fi and seatback entertainment are widely available on these international flights.", "methodology": "Aircraft types are taken from the equipment each operating carrier schedules on this route, drawn from published airline timetables and airline equipment schedules in our flight-schedule database. They describe typical scheduled aircraft and can vary with seasonal or day-of-week assignments and last-minute equipment swaps.", "toolsUsed": [ "route_aircraft" ] }, "q18": { "question": "Which airline alliances serve flights from Delhi to San Francisco?", "answer": "Only Air India operates nonstop between Delhi and San Francisco, and it belongs to Star Alliance — so Star Alliance is the sole alliance with nonstop service on this route. Other alliances like oneworld and SkyTeam may offer connecting itineraries, but no nonstop flights.", "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.", "toolsUsed": [ "route_airlines" ] }, "q21": { "question": "What is the baggage allowance on this route from Delhi to San Francisco?", "answer": "Baggage rules depend on the airline and fare class. Basic economy tickets often exclude a checked bag. Standard international economy typically includes one checked bag and a carry‑on, while premium cabins offer more." }, "q22": { "question": "What cabin and seat options are typical from Delhi to San Francisco?", "answer": "Delhi to San Francisco flights commonly offer Economy, Premium Economy, and flat‑bed Business class; First class is available on select airlines." }, "q23": { "question": "Are same‑day changes or standby possible on this route?", "answer": "Policies vary by airline and fare; flexible and premium cabin tickets often allow same‑day changes or standby, while basic economy usually does not." } } } }