{
  "response": {
    "Key": "ICN-SFO",
    "orig": {
      "code": "ICN",
      "type": "airport",
      "city": "Seoul",
      "fullCity": "Seoul, Korea",
      "airport": "Incheon 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 Seoul to San Francisco?",
        "answer": "The flight from Seoul to San Francisco is about 5,640 miles and typically takes around 10 hours and 40 minutes nonstop. The return flight is longer, at about 12 hours and 40 minutes, due to prevailing headwinds.",
        "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 Seoul to San Francisco?",
        "answer": "Yes, four airlines fly nonstop from Seoul Incheon to San Francisco: United (UA), Korean Air (KE), Air Premia (YP), and Asiana (OZ). United operates five daily departures, Korean Air and Asiana each run one daily flight, and Air Premia flies once daily on Monday, Wednesday, Friday, Saturday, and Sunday. Together they offer about 66 weekly nonstops, with flight times around 10 to 11 hours eastbound.",
        "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. 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": [
          "route_airlines",
          "flight_schedule",
          "redeye_flights"
        ]
      },
      "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 direct service from the International Terminal; Caltrain and SamTrans buses offer additional rail and bus options. Taxis, ride-share apps (Lyft, Uber, Wingz), and even autonomous Waymo rides are available, with pickups at designated zones or the Domestic Garage Level 5. Rental cars are centralized at the Rental Car Center via the AirTrain Blue Line, and hotel shuttles serve many local properties. AirTrain itself is free and connects all terminals to BART, parking, and the rental car center.",
        "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 Seoul to San Francisco?",
        "answer": "No overnight (red‑eye) flights are available from Seoul (ICN) to San Francisco (SFO). Neither nonstop red‑eyes nor connecting itineraries whose long leg is a red‑eye were found in the schedule.",
        "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 Seoul to San Francisco?",
        "answer": "Nonstop flights from Seoul Incheon to San Francisco are operated by United Airlines, Asiana Airlines, Air Premia, and Korean Air. United offers the most frequent service with 35 weekly departures and a median fare around $887, while Asiana operates 14 weekly flights at a median of $1,240. Air Premia flies 10 times per week with fares around $781, and Korean Air provides daily service with a median fare of $1,353.",
        "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 Seoul and San Francisco?",
        "answer": "Common layover cities between Seoul and San Francisco include Tokyo (Narita or Haneda), Vancouver, and Seattle. Tokyo offers efficient connections with multiple daily flights on Asiana, Korean Air, and United, and passengers transiting without entering Japan can remain airside. Vancouver and Seattle provide geographical advantage on the transpacific routing, with Vancouver also offering a streamlined transit process for eligible travelers."
      },
      "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 Seoul to San Francisco?",
        "answer": "Bring a valid passport and a 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 all major alliances and is the standard choice for international arrivals. Oakland and San Jose are alternatives farther out, used mainly by low-cost carriers and domestic flights."
      },
      "q13": {
        "question": "How do I get to Incheon Intl Airport from the city center?",
        "answer": "From central Seoul, the fastest and most popular way to reach Incheon International Airport is the Airport Railroad Express (AREX), a dedicated train that runs frequently from Seoul Station and takes under an hour. Airport limousine buses are also widely used, especially from major hotels and districts, and they cost a bit more than the train but offer door-to-door convenience. Taxis and ride-share services are available and most comfortable for groups or heavy luggage, though they are the priciest option and subject to traffic. Driving yourself and parking at the airport is possible but generally the least convenient for a departing trip, since long-term parking adds cost and you must allow extra time.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://airinfo.airport.kr/bbs/ap_en/937/138233/artclView.do?layout=unknown",
            "title": "News",
            "favicon": "https://airinfo.airport.kr/Web-home/og/images/apple-touch-icon.png"
          },
          {
            "url": "https://www.airport.kr/ap_en/1514/subview.do",
            "title": "International Incheon Airport"
          },
          {
            "url": "https://airport.kr/ap_en/6636/subview.do?enc=Zm5jdDF8QEB8JTJGYmJzJTJGYXBfZW4lMkY5MzclMkYxMzgyMzMlMkZhcnRjbFZpZXcuZG8lM0Y=",
            "title": "News",
            "favicon": "https://airport.kr/Web-home/og/images/apple-touch-icon.png"
          }
        ]
      },
      "q14": {
        "question": "Are there hotels or sleeping facilities at San Francisco airport?",
        "answer": "San Francisco International Airport has a hotel directly connected to the airport: the Grand Hyatt at SFO, which is about 5 minutes away via the AirTrain with no shuttle required. Inside the terminal, FreshenUp in the International Terminal offers private nap rooms and paid showers, with nap rooms available during daytime and evening hours and limited overnight availability.",
        "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 a Reflection Room for quiet self-reflection, meditation, and prayer, providing a dedicated space for travelers seeking a moment of calm. Currency exchange services are available at SFO, with locations and hours listed in the airport's passenger services directory. Free Wi-Fi is offered throughout the terminals, keeping you connected during your time at the airport.",
        "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 Seoul and San Francisco airports?",
        "answer": "At Incheon International Airport, a priority lane is available for elderly passengers, young children, persons with disabilities, and pregnant women; free electric vehicle and wheelchair transportation can be arranged by contacting the help desk at 1577-2600 before arrival, and designated disabled parking and help phones are provided. San Francisco International Airport offers wheelchair and guided assistance arranged through your airline, a Sensory Room near Gate C2 in Terminal 1 for neurodivergent travelers, companion care restrooms, visual paging, and TSA Cares support, which should be requested at least 72 hours in advance. Both airports recommend contacting your airline in advance for mobility assistance.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://airport.kr/ap_en/1435/subview.do",
            "title": "International Incheon Airport",
            "favicon": "https://airport.kr/Web-home/og/images/apple-touch-icon.png"
          },
          {
            "url": "https://airport.kr/ap_en/1562/subview.do",
            "title": "International Incheon Airport"
          },
          {
            "url": "https://airport.kr/ap_en/1478/subview.do",
            "title": "International Incheon Airport",
            "favicon": "https://airport.kr/Web-home/og/images/apple-touch-icon.png"
          },
          {
            "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 Seoul to San Francisco?",
        "answer": "Korean Air operates the route most, flying the Boeing 787-10 daily. United and Air Premia both use the Boeing 787-9, while Asiana Airlines flies the Airbus A350-900.",
        "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 Seoul to San Francisco?",
        "answer": "Star Alliance is served by United Airlines and Asiana Airlines, while SkyTeam is represented by Korean Air. Air Premia also flies the route nonstop but belongs to no global alliance, and oneworld has no nonstop carrier here.",
        "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 Seoul?",
        "answer": "When departing Seoul Incheon, the Korean Air Lounge in Terminal 1 near gate 28 offers dining, refreshments, showers, tea and coffee, and internet access, with access available to eligible Qantas passengers or through Qantas Club membership. Terminal 2 has a Sky Hub Lounge open daily from midnight to 9:30 PM, while Terminal 1 offers multiple Sky Hub Lounge locations, Matina lounges at gates 11 and 43, and Asiana Business Class Lounges in the East, Central, and West sections. The Asiana Business Lounge West stays open until 12:30 AM, and the East lounge operates from 7 AM to 8 PM.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://www.qantas.com/vn/en/qantas-experience/at-the-airport/airport-lounges/all-qantas-airport-lounges/airport-lounge-locations.html/icn/Korean%2520Air%2520Lounge.html",
            "title": "Airport lounge locations | Qantas"
          },
          {
            "url": "https://prioritypass.com/en-GB/lounges/south-korea/incheon-international",
            "title": "Incheon International Airport ICN Lounges - ICN Airport Guide and lounges. | Priority Pass",
            "favicon": "https://prioritypass.com/icon.png?a4ff481221414a5c",
            "time_published": "2026-06-30T08:24:25Z"
          },
          {
            "url": "https://www.delta.com/us/en/airports/asia/seoul-sky-club-airport-map",
            "title": "Seoul Incheon (ICN) Airport Map & Lounges | Delta Air Lines",
            "favicon": "https://www.delta.com/content/dam/delta-applications/dlhome/favicon.ico"
          },
          {
            "url": "https://prioritypass.com/en-GB/lounges/south-korea/incheon-international/icn14-sky-hub-lounge",
            "title": "Sky Hub Lounge ICN AIRPORT Terminal 2 Incheon International | Priority Pass",
            "time_published": "2024-11-05T00:00:00Z"
          },
          {
            "url": "https://americanexpress.com/en-ca/travel/lounges/the-platinum-card/ICN",
            "title": "American Express Lounges at Seoul Incheon International Airport | Amex CA",
            "favicon": "https://www.americanexpress.com/apple-touch-icon-152x152.png"
          }
        ]
      },
      "q21": {
        "question": "What is the baggage allowance on this route from Seoul to San Francisco?",
        "answer": "Allowance depends on the airline and fare class. Basic economy tickets often exclude checked luggage, while standard international economy usually includes one checked bag and a carry‑on. Premium cabins offer higher limits."
      },
      "q22": {
        "question": "What cabin and seat options are typical from Seoul to San Francisco?",
        "answer": "Flights from Seoul to San Francisco typically offer Economy, Premium Economy, and flat-bed Business class, with First class available on select airlines."
      },
      "q23": {
        "question": "Are same‑day changes or standby possible on this route?",
        "answer": "Policies vary by airline and fare class; flexible tickets and premium cabins typically allow same‑day changes or standby, while deeply discounted fares often do not."
      }
    }
  }
}