{
  "response": {
    "Key": "HKG-SFO",
    "orig": {
      "code": "HKG",
      "type": "airport",
      "city": "Hong Kong",
      "fullCity": "Hong Kong, Hong Kong",
      "airport": "Hong Kong 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 Hong Kong to San Francisco?",
        "answer": "The flight from Hong Kong to San Francisco is about 6,910 miles and takes around 13 hours nonstop. The return leg is noticeably longer at about 14 hours 55 minutes, a difference of nearly two hours due to prevailing winds.",
        "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.",
        "toolsUsed": [
          "flight_schedule"
        ]
      },
      "q1": {
        "question": "Are there any direct flights from Hong Kong to San Francisco?",
        "answer": "Yes, nonstop flights from Hong Kong to San Francisco are available daily on both Cathay Pacific and United Airlines, with a combined 56 weekly departures. Cathay Pacific operates five daily flights, while United offers three, all using Boeing 777-300ER aircraft. The typical nonstop flight time is around 13 hours.",
        "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, flight times and distances for this route come 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). We report the days of the week and the departure times each carrier operates. The typical flight time is the median scheduled block time, given both per carrier and across all carriers on the route; where a schedule does not publish an elapsed time, it is derived from the scheduled departure and arrival times converted to UTC. Outbound and return times are computed by the same method, so the difference between them is directly comparable and reflects prevailing winds rather than any change in derivation. Distance is the great-circle distance between the two specific airports named, so an actual flown track is typically 2-5% longer. Where shown, on-time departure and arrival rates and cancellation rates come from the U.S. Bureau of Transportation Statistics (BTS) Airline On-Time Performance dataset, which covers U.S. domestic routes only; where a typical fare is shown, it comes 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. 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. 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_airlines",
          "flight_schedule",
          "route_options",
          "redeye_flights",
          "route_aircraft"
        ]
      },
      "q3": {
        "question": "What are the ground transportation options in San Francisco?",
        "answer": "San Francisco International Airport offers a wide range of ground transportation into the city. BART rapid rail is the fastest option, running directly from the International Terminal to downtown San Francisco and the East Bay. Ride-share services like Lyft and Uber pick up on Level 5 of the Domestic Garage, while taxis wait at the center islands outside Arrivals. Rental cars are available at a central Rental Car Center reached via the AirTrain Blue Line, and SamTrans buses, Caltrain (with a transfer at Millbrae), hotel shuttles, and autonomous Waymo rides provide additional options. BART is generally the most-used choice for getting to the city center because it is fast, affordable, and avoids traffic.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://flysfo.com/passengers/ground-transportation/public-transit",
            "title": "Public Transit | San Francisco International Airport",
            "favicon": "https://flysfo.com/themes/custom/blueskies/favicon.ico",
            "time_published": "2026-08-17T20:51:53Z"
          },
          {
            "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": "2026-08-17T22:27:43Z"
          },
          {
            "url": "https://www.flysfo.com/passengers/ground-transportation/public-transit/ride-bart",
            "title": "BART | San Francisco International Airport",
            "favicon": "https://www.flysfo.com/themes/custom/blueskies/favicon.ico",
            "time_published": "2025-06-26T22:28:56Z"
          },
          {
            "url": "https://www.flysfo.com/",
            "title": "San Francisco International Airport | SFO Official Site",
            "favicon": "https://www.flysfo.com/themes/custom/blueskies/favicon.ico"
          },
          {
            "url": "https://flysfo.com/passengers/ground-transportation/getting-around-sfo",
            "title": "Getting Around SFO | San Francisco International Airport",
            "favicon": "https://flysfo.com/themes/custom/blueskies/favicon.ico",
            "time_published": "2026-08-11T21:48:22Z"
          }
        ]
      },
      "q6": {
        "question": "Are overnight (red‑eye) flights available from Hong Kong to San Francisco?",
        "answer": "No red‑eye flights are available from Hong Kong to San Francisco — neither nonstop nor connecting itineraries with an overnight long leg operate 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 Hong Kong to San Francisco?",
        "answer": "Cathay Pacific and United Airlines operate nonstop flights from Hong Kong to San Francisco. Cathay Pacific offers 35 weekly flights with departures at various times throughout the day, and a typical median fare around $1,327. United Airlines flies 21 times a week, with a median fare around $814, making it the lower-cost nonstop option on this route.",
        "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.",
        "toolsUsed": [
          "route_airlines"
        ]
      },
      "q8": {
        "question": "If I need a connection, what are common layover cities between Hong Kong and San Francisco?",
        "answer": "Common layovers include Tokyo, Seoul, Taipei and Vancouver. These hubs offer efficient connections, often with single-airline itineraries, and allow visa‑free transit for many nationalities, keeping total travel time competitive."
      },
      "q10": {
        "question": "Which months have the best weather for traveling to San Francisco?",
        "answer": "September to November offers the warmest, clearest weather and fewer tourists than summer."
      },
      "q11": {
        "question": "What documents should I bring with me to the airport when flying from Hong Kong to San Francisco?",
        "answer": "Bring a passport valid for at least six months, a valid U.S. visa or ESTA, 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 about 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 popular for low-cost domestic flights. San Jose International, further south in Silicon Valley, is convenient for tech business travel."
      },
      "q13": {
        "question": "How do I get to Hong Kong Intl Airport from the city center?",
        "answer": "From downtown Hong Kong, the Airport Express is the fastest and most popular way to reach Hong Kong International Airport, taking about 24 minutes from Hong Kong Station. Public buses serve all districts at a lower cost, while taxis offer door-to-door flexibility and ride-share services are also available. Driving yourself is possible with on-airport parking, including a valet option, though it is generally the most expensive choice. For most travelers, the Airport Express balances speed and cost best, with buses being the budget pick and taxis best for groups or heavy luggage.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://hongkongairport.com/en/transport/to-from-airport",
            "title": "Overview, To and From Airport - Hong Kong International Airport",
            "favicon": "https://hongkongairport.com/iwov-resources/image/common/icon/favicon.ico"
          },
          {
            "url": "https://hongkongairport.com/tc/transport",
            "title": "æ¦ è¦½½½, ä¾¾¾ å¾¾¾ æ© å ´ç  äº¤é  è¨­æ ½½½ - é¦ æ¸¯å  é  æ© å",
            "time_published": "2026-03-30T00:00:00Z"
          },
          {
            "url": "https://hongkongairport.com/en/transport/to-from-airport/taxis.page",
            "title": "Taxis, To and From Airport - Hong Kong International Airport",
            "favicon": "https://hongkongairport.com/iwov-resources/image/common/icon/favicon.ico"
          },
          {
            "url": "https://www.hongkongairport.com/en/transport/mainland-connection/mainland-coaches/",
            "title": "Chinese Mainland Coaches, Chinese Mainland Connection - Hong Kong International Airport",
            "favicon": "https://www.hongkongairport.com/iwov-resources/image/common/icon/favicon.ico"
          }
        ]
      },
      "q14": {
        "question": "Are there hotels or sleeping facilities at San Francisco airport?",
        "answer": "San Francisco International Airport has the Grand Hyatt at SFO, an upscale hotel located at the airport and reachable in about 5 minutes via AirTrain with no shuttle required. Additionally, FreshenUp! in the International Terminal offers private nap rooms and paid showers, with nap room rates starting at $150 for three hours and overnight options from $275.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://flysfo.com/passengers/services/nap-rooms",
            "title": "Nap Rooms & Shower Facilities | San Francisco International Airport",
            "favicon": "https://flysfo.com/themes/custom/blueskies/favicon.ico",
            "time_published": "2026-06-24T19:24:47Z"
          },
          {
            "url": "https://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://sleepinginairports.net/reviews/san-francisco-airport-reviews.htm",
            "title": "San Francisco   Airport Reviews (SFO) – Sleeping in Airports",
            "favicon": "https://www.sleepinginairports.net/wp-content/uploads/2018/09/cropped-sia-logo-180x180.png",
            "time_published": "2025-02-10T18:15:46Z"
          }
        ]
      },
      "q15": {
        "question": "Are there currency exchange offices, prayer rooms and Wi‑Fi at San Francisco Intl Airport?",
        "answer": "San Francisco International Airport offers currency exchange services, a reflection room that includes a prayer room for quiet meditation, and free Wi-Fi throughout the terminals. The reflection room is located in the terminals, and currency exchange counters are available in the International Terminal and other areas. You can find detailed locations on the airport's passenger services page, which lists these amenities alongside ATMs and other essentials.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "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"
          },
          {
            "url": "https://flysfo.com/sites/default/files/2024-06/240614_SFO_Tabloid_Face A_T1-no-foodcourt_WEB_0621.pdf",
            "title": "240614_SFO_Tabloid_Face A_T1_Template_MASTER Update.indd",
            "time_published": "2024-06-17T18:03:02Z"
          },
          {
            "url": "https://flysfo.com/passengers",
            "title": "Passengers | San Francisco International Airport",
            "favicon": "https://flysfo.com/themes/custom/blueskies/favicon.ico",
            "time_published": "2026-04-14T23:46:29Z"
          },
          {
            "url": "https://www.flysfo.com/",
            "title": "San Francisco International Airport | SFO Official Site",
            "favicon": "https://www.flysfo.com/themes/custom/blueskies/favicon.ico"
          },
          {
            "url": "https://en.wikipedia.org/wiki/SFO",
            "title": "San Francisco International Airport",
            "time_published": "2026-04-27T05:13:36Z"
          }
        ]
      },
      "q16": {
        "question": "Are there accessible services or children's facilities at the Hong Kong and San Francisco airports?",
        "answer": "Both Hong Kong International Airport and San Francisco International Airport offer robust accessibility services and children’s facilities. At HKG, travelers can use complimentary wheelchair service by pre-booking through their airline or travel agent, or pay for ALLWAYS service via the 24-hour hotline (+852 2275 0000); the airport also provides tactile guide paths, braille signage, accessible changing rooms, and a Caring Corner rest area, while children’s amenities include nursing rooms and a Sensory Corner. At SFO, wheelchair and guided assistance are arranged through your airline (request in advance), and the airport features a Sensory Room near Gate C2 with a practice aircraft cabin, companion care restrooms, visual paging, and TSA Cares support (call 72 hours ahead for checkpoint assistance). Both airports recommend contacting your airline at least 48 hours before travel to arrange mobility assistance.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://www.hongkongairport.com/en/passenger-guide/airport-facilities-services/special-needs-access",
            "title": "Special Needs Access",
            "favicon": "https://www.hongkongairport.com/iwov-resources/image/common/icon/favicon.ico"
          },
          {
            "url": "https://hongkongairport.com/en/passenger-guide/departures/special-needs-access.page",
            "title": "Special Needs Access, Departures - Hong Kong International Airport",
            "favicon": "https://hongkongairport.com/iwov-resources/image/common/icon/favicon.ico"
          },
          {
            "url": "https://www.hongkongairport.com/en/passenger-guide/airport-facilities-services/mobility-assistance",
            "title": "Mobility Assistance, Airport Facilities & Services - Hong Kong International Airport",
            "favicon": "https://www.hongkongairport.com/iwov-resources/image/common/icon/favicon.ico"
          },
          {
            "url": "https://hongkongairport.com/en/passenger-guide/airport-facilities-services",
            "title": "Airport Facilities and Services, Passenger Guide - Hong Kong International Airport",
            "favicon": "https://hongkongairport.com/iwov-resources/image/common/icon/favicon.ico"
          },
          {
            "url": "https://www.flysfo.com/de/node/10035",
            "title": "Accessibility | San Francisco International Airport",
            "time_published": "2026-04-30T20:33:21Z"
          },
          {
            "url": "https://flysfo.com/passengers/services-amenities/accessibility",
            "title": "Accessibility | San Francisco International Airport",
            "favicon": "https://flysfo.com/themes/custom/blueskies/favicon.ico",
            "time_published": "2026-08-12T20:12:42Z"
          },
          {
            "url": "https://flysfo.com/passengers/services-amenities/accessibility/at-sfo",
            "title": "At SFO | San Francisco International Airport",
            "favicon": "https://flysfo.com/themes/custom/blueskies/favicon.ico",
            "time_published": "2026-05-21T22:27:23Z"
          },
          {
            "url": "https://www.flysfo.com/de/node/14867",
            "title": "At SFO | San Francisco International Airport",
            "time_published": "2026-04-15T15:54:00Z"
          },
          {
            "url": "https://www.flysfo.com/passengers/services-amenities/medical-services",
            "title": "Medical Services | San Francisco International Airport",
            "favicon": "https://www.flysfo.com/themes/custom/blueskies/favicon.ico",
            "time_published": "2026-05-26T21:54:18Z"
          }
        ]
      },
      "q17": {
        "question": "What aircraft are typically used on flights from Hong Kong to San Francisco?",
        "answer": "Cathay Pacific operates the most flights on the Hong Kong to San Francisco route, using Boeing 777 family aircraft and Airbus A350-900s. United also flies the route nonstop with Boeing 777-300ER aircraft.",
        "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.",
        "toolsUsed": [
          "flight_schedule"
        ]
      },
      "q18": {
        "question": "Which airline alliances serve flights from Hong Kong to San Francisco?",
        "answer": "Cathay Pacific (a Oneworld member) and United Airlines (a Star Alliance member) fly nonstop from Hong Kong to San Francisco. No SkyTeam carrier operates this route nonstop, though SkyTeam airlines may offer connecting itineraries.",
        "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"
        ]
      },
      "q20": {
        "question": "What are the best airport lounge options when departing from Hong Kong?",
        "answer": "When departing Hong Kong, travelers can choose from several airline lounges, including Cathay Pacific's The Deck, The Pier (First and Business), The Wing, and The Bridge, plus an Emirates Lounge, a SilverKris Lounge, the Qantas Hong Kong Lounge, and a United Club. Pay-in options include Kyra Lounge, Plaza Premium First, and multiple Plaza Premium Lounge locations, with The Centurion Lounge available to eligible American Express card members. These lounges typically offer amenities such as hot showers, food and beverage, and spaces to rest or work.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://www.hongkongairport.com/en/passenger-guide/airport-facilities-services/airline-lounges",
            "title": "Airline Lounges, Airport Facilities & Services - Hong Kong International Airport",
            "favicon": "https://www.hongkongairport.com/iwov-resources/image/common/icon/favicon.ico"
          },
          {
            "url": "https://americanexpress.com/en-us/travel/lounges/the-platinum-card/HKG",
            "title": "American Express Lounges at Hong Kong International Airport | Amex US",
            "favicon": "https://www.americanexpress.com/apple-touch-icon-152x152.png"
          },
          {
            "url": "https://www.delta.com/us/en/airports/asia/hong-kong-sky-club-airport-map",
            "title": "Hong Kong Intl. (HKG) Airport Map & Lounges | Delta Air Lines",
            "favicon": "https://www.delta.com/content/dam/delta-applications/dlhome/favicon.ico"
          },
          {
            "url": "https://hongkongairport.com/en/passenger-guide/airport-facilities-services/pay-in-corporate-lounges",
            "title": "Pay-in Lounges, Airport Facilities & Services - Hong Kong International Airport",
            "favicon": "https://hongkongairport.com/iwov-resources/image/common/icon/favicon.ico"
          },
          {
            "url": "https://prioritypass.com/zh-Hant-TW/lounges/hong-kong/hong-kong-international-chek-lap-kok",
            "title": "Hong Kong International Airport HKG Lounges - HKG Airport Guide and lounges. | Priority Pass",
            "favicon": "https://prioritypass.com/icon.png?a4ff481221414a5c"
          }
        ]
      },
      "q21": {
        "question": "What is the baggage allowance on this route from Hong Kong to San Francisco?",
        "answer": "Baggage allowance on flights from Hong Kong to San Francisco depends on the airline and fare class. Basic economy tickets typically restrict checked baggage, while standard international economy fares generally include at least one free checked bag and a carry-on. Premium cabins offer more generous allowances."
      },
      "q22": {
        "question": "What cabin and seat options are typical from Hong Kong to San Francisco?",
        "answer": "On flights from Hong Kong to San Francisco you can typically book Economy, Premium Economy, and flat‑bed Business class. First class is also 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 restrictive economy fares generally do not."
      }
    }
  }
}