{
  "response": {
    "Key": "MAA-SFO",
    "orig": {
      "code": "MAA",
      "type": "airport",
      "city": "Chennai",
      "fullCity": "Chennai, India",
      "airport": "Chennai 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 Chennai to San Francisco?",
        "answer": "There are no nonstop flights from Chennai (MAA) to San Francisco (SFO). The fastest one‑stop itineraries, typically via Dubai (DXB) or Doha (DOH), take about 21 to 23 hours total travel time. The return journey from San Francisco to Chennai is often slightly shorter, around 20 to 22 hours, due to prevailing tailwinds."
      },
      "q1": {
        "question": "Are there any direct flights from Chennai to San Francisco?",
        "answer": "There are no nonstop flights from Chennai (MAA) to San Francisco (SFO). The most common one-stop routing goes through Delhi with Air India, taking about 22–23 hours total, or through Frankfurt on Lufthansa/United with a similar duration. Other one-stop options include Emirates via Dubai, Cathay Pacific via Hong Kong, and Singapore Airlines via Singapore, with typical fares starting around $1,050–$1,200.",
        "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. Carrier service and weekly frequencies are summarized from our flight-schedule database, which draws on published airline timetables, U.S. government schedule data, and observed operations from the EUROCONTROL/OpenSky Open Performance Data Initiative (OPDI). Where available, on-time and cancellation rates come from the U.S. Bureau of Transportation Statistics (BTS) Airline On-Time Performance dataset, and typical fares from the U.S. DOT Airline Origin and Destination Survey (DB1B), a quarterly 10% sample of tickets sold. Stop counts, connecting hubs, and per-airline prices are drawn from a large sample of the real fares Priceline users found on this route in the last 72 hours. We group those fares by number of stops, by the hub airport a connection routes through, and by operating airline, and report each group's share of the sample alongside its lowest and median price.",
        "toolsUsed": [
          "route_airlines",
          "flight_schedule",
          "route_options"
        ]
      },
      "q2": {
        "question": "Are there visa requirements to travel from Chennai to San Francisco?",
        "answer": "Yes, there are visa requirements for travel from Chennai to San Francisco. Indian citizens need a valid U.S. visa to enter the United States. U.S. citizens traveling to India must have a valid Indian visa or an e-Visa, which can be obtained online before departure. The requirements are the same in both directions for the respective nationals of each country."
      },
      "q3": {
        "question": "What are the ground transportation options in San Francisco?",
        "answer": "San Francisco International Airport (SFO) offers a variety of ground transportation options. The BART rapid rail system is the fastest and most-used way to reach downtown San Francisco and the East Bay, with a station in the International Terminal connected to all others via the AirTrain. Ride-share services like Lyft and Uber pick up on Level 5 of the Domestic Garage, while taxis are available at the center islands outside of Arrivals. Autonomous rides with Waymo are also available for select passengers at the Rental Car Center. Rental cars can be accessed via the AirTrain Blue Line, and many local hotels offer complimentary shuttle service.",
        "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 Chennai to San Francisco?",
        "answer": "The cheapest time to fly from Chennai to San Francisco is late summer and early fall, with average fares dropping to around $1,054 in September, $1,089 in October, and $1,100 in August. The most expensive periods are early summer and the winter holidays, where average prices climb to roughly $1,628 in June, $1,592 in December, and $1,464 in July.",
        "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 Chennai to San Francisco?",
        "answer": "For Chennai to San Francisco, the best fares are typically found when booking 8–11 weeks in advance, with an average price around $1,175. Booking about 60 days out can yield the lowest fares near $1,158, while last-minute tickets (0 days ahead) climb to roughly $1,589. During peak summer (June–August) and holiday periods (mid-December to early January), demand pushes prices higher, so booking closer to 11 weeks ahead or more is advisable.",
        "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 Chennai to San Francisco?",
        "answer": "No overnight (red‑eye) flights operate from Chennai (MAA) to San Francisco (SFO) — neither nonstop red‑eyes nor connecting itineraries whose long leg is a red‑eye are available on this route.",
        "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"
        ]
      },
      "q7": {
        "question": "Which airlines usually operate this route from Chennai to San Francisco?",
        "answer": "There are no nonstop flights from Chennai to San Francisco. Air India offers the most frequent one-stop service, operating about eight daily flights via Delhi, while Emirates and United connect a few times per day via Dubai and Frankfurt or Hong Kong, respectively. Lufthansa also offers a one-stop option via Frankfurt, though less frequently. Specific per-carrier median fares are not available for 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"
        ]
      },
      "q8": {
        "question": "If I need a connection, what are common layover cities between Chennai and San Francisco?",
        "answer": "Common layovers include Dubai, Doha, Singapore, and Frankfurt. Dubai and Doha offer numerous connections with efficient transfers and visa-free transit for many nationalities. Singapore provides a seamless experience with Changi Airport's amenities. Frankfurt connects via a shorter second leg, keeping total travel time competitive."
      },
      "q9": {
        "question": "How reliable are on‑time departures on this route from Chennai to San Francisco?",
        "answer": "On‑time performance varies by connection, with early departures from Chennai often more reliable. Airlines like Emirates and Singapore Airlines typically maintain good punctuality, though weather and layover airports can affect scheduling."
      },
      "q10": {
        "question": "Which months have the best weather for traveling to San Francisco?",
        "answer": "September to November offers the warmest, sunniest weather and smaller crowds than summer."
      },
      "q11": {
        "question": "What documents should I bring with me to the airport when flying from Chennai to San Francisco?",
        "answer": "Bring a passport valid for at least six months beyond your stay, a valid U.S. visa or ESTA if eligible, proof of onward travel, and a payment method for baggage. Check current vaccination requirements before travel."
      },
      "q12": {
        "question": "Which airport should I use in San Francisco?",
        "answer": "San Francisco International is the only commercial airport serving the city. It is located 13 miles south of downtown, well connected by BART, and serves as a major hub for United Airlines and a focus city for Alaska Airlines."
      },
      "q13": {
        "question": "How do I get to Chennai Intl Airport from the city center?",
        "answer": "From central Chennai, the fastest option is typically the Chennai Metro, which connects key city stations to the airport terminal in about 30–40 minutes and costs very little. Prepaid taxis and ride‑share services like Ola and Uber offer door‑to‑door convenience at a moderate price, while the Metropolitan Transport Corporation (MTC) runs cheaper public buses that take longer. Driving and parking are available but less popular due to traffic, with both short‑term and long‑term parking at the airport.",
        "toolsUsed": [],
        "references": [
          {
            "url": "http://www.airportdistancecalculator.com/chennai-airport-maa-details.html",
            "title": "Chennai Airport (MAA) Details, Chennai, India",
            "time_published": "2026-04-24T00:00:00Z"
          },
          {
            "url": "https://airportdistancecalculator.com/flight-tir-to-maa.html",
            "title": "Distance From Tirupati Airport to Chennai Airport (TIR - MAA Distance)",
            "time_published": "2026-01-20T00:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/w/index.php?diff=1301342160&oldid=1056012429&title=Template:Transport_in_Chennai",
            "title": "Template:Transport in Chennai: Difference between revisions - Wikipedia",
            "time_published": "2025-07-19T00:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/w/index.php?diff=1301342160&oldid=1056012381&title=Template:Transport_in_Chennai",
            "title": "Template:Transport in Chennai: Difference between revisions - Wikipedia",
            "time_published": "2025-07-19T00:00:00Z"
          },
          {
            "url": "https://www.airportdistancecalculator.com/flight-trz-to-maa.html",
            "title": "Distance From Civil Airport to Chennai Airport (TRZ - MAA Distance)",
            "time_published": "2026-02-03T00:00:00Z"
          }
        ]
      },
      "q14": {
        "question": "Are there hotels or sleeping facilities at San Francisco airport?",
        "answer": "San Francisco International Airport (SFO) has the Grand Hyatt at SFO, an on-site hotel connected to all terminals via the AirTrain, so no shuttle is required. Additionally, the airport offers hourly nap rooms and showers in the International Terminal for those needing a quick rest.",
        "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, prayer rooms, and free Wi‑Fi. Currency exchange counters are located throughout the terminals, including the International Terminal. A Reflection Room for quiet prayer and meditation is available, and there are also chapels or prayer rooms in the terminals. Complimentary Wi‑Fi is provided airport‑wide.",
        "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 Chennai to San Francisco?",
        "answer": "There are no nonstop flights from Chennai to San Francisco, so all itineraries involve a connection. The most common long-haul aircraft on this route is the Boeing 777-300ER, typically operated by Air India via Delhi. Other widebody types that appear include the Airbus A380-800 (via Dubai on Emirates), the Boeing 787-9 (via Frankfurt on United), the Boeing 747-8I (also via Frankfurt on Lufthansa), and the Boeing 777-300ER via Hong Kong on United — the exact aircraft varies by airline and day. Onboard Wi-Fi and seatback entertainment are widely available across these long-haul aircraft, though the specific offerings depend on the carrier.",
        "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"
        ]
      },
      "q20": {
        "question": "What are the best airport lounge options when departing from Chennai?",
        "answer": "Chennai International Airport has several lounges in the domestic and international terminals, though specific airline-branded lounges are not clearly confirmed. The TFS Travel Club Lounge is present in Terminal 1 (domestic) and Terminal 4 (domestic), while the Travel Club lounge operates in Terminal 2 (international). Access is typically available to business-class passengers, elite status holders, or through programs like Priority Pass, and the lounges offer basic amenities like seating, refreshments, and Wi-Fi. Without verified details on airline-specific lounges, these independent options are your best bet for pre-flight comfort.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://americanexpress.com/en-in/travel/lounges/the-platinum-card/MAA",
            "title": "American Express Lounges at Chennai International Airport | Amex IN",
            "favicon": "https://www.americanexpress.com/apple-touch-icon-152x152.png"
          },
          {
            "url": "https://prioritypass.com/en-GB/lounges/india/chennai-international",
            "title": "Chennai Meenambakkam Airport MAA Lounges - MAA Airport Guide and lounges. | Priority Pass",
            "time_published": "2024-11-05T00:00:00Z"
          },
          {
            "url": "https://americanexpress.com/en-gb/travel/lounges/the-platinum-card/MAA",
            "title": "American Express Lounges at Chennai International Airport | Amex GB",
            "time_published": "2026-05-01T00:00:00Z"
          },
          {
            "url": "https://prioritypass.com/lounges/india/chennai-international/maa8-travel-club",
            "title": "Chennai Meenambakkam Airport MAA Lounges - MAA Airport Guide and lounges.  | Priority Pass",
            "time_published": "2024-11-05T00:00:00Z"
          },
          {
            "url": "http://www.airportdistancecalculator.com/chennai-airport-maa-details.html",
            "title": "Chennai Airport (MAA) Details, Chennai, India",
            "time_published": "2026-04-24T00:00:00Z"
          }
        ]
      },
      "q21": {
        "question": "What is the baggage allowance on this route from Chennai to San Francisco?",
        "answer": "Baggage allowance for Chennai to San Francisco flights varies by airline and fare class. Basic economy tickets are restrictive and may not include a checked bag, whereas standard international economy fares typically include one free checked bag and a carry‑on. Premium cabins generally allow two checked bags and larger carry‑ons."
      },
      "q22": {
        "question": "What cabin and seat options are typical from Chennai to San Francisco?",
        "answer": "Flights from Chennai to San Francisco typically offer Economy and flat-bed Business class, with Premium Economy available on select airlines and routes."
      },
      "q23": {
        "question": "Are same‑day changes or standby possible on this route?",
        "answer": "Policies vary by airline and fare; flexible and premium cabin tickets typically allow same‑day changes or standby, while restricted fares usually do not."
      }
    }
  }
}