{"schema_version":1,"slug":"sfo-to-sin","url":"https://flightdose.com/routes/sfo-to-sin/","return_slug":"sin-to-sfo","return_url":"https://flightdose.com/routes/sin-to-sfo/","departure":{"iata":"SFO","icao":"KSFO","name":"San Francisco International Airport","city":"San Francisco","country":"United States","lat":37.6191,"lon":-122.3737,"url":"https://flightdose.com/airports/sfo/"},"arrival":{"iata":"SIN","icao":"WSSS","name":"Singapore Changi Airport","city":"Singapore","country":"Singapore","lat":1.355,"lon":103.9883,"url":"https://flightdose.com/airports/sin/"},"distance_km":13582,"max_latitude":{"deg":47.4,"hemisphere":"N"},"standard_flight":{"altitude_ft":35000,"airborne_minutes":1002,"airborne_minutes_source":"estimated","profile":{"climb":25,"cruise":960,"descent":17},"solar_month":"2026-08","dose_msv":0.04238,"dose_rate_usv_per_hour":2.54},"by_altitude":[{"altitude_ft":31000,"dose_msv":0.03148,"dose_rate_usv_per_hour":1.88},{"altitude_ft":33000,"dose_msv":0.03682,"dose_rate_usv_per_hour":2.2},{"altitude_ft":35000,"dose_msv":0.04238,"dose_rate_usv_per_hour":2.54},{"altitude_ft":37000,"dose_msv":0.04805,"dose_rate_usv_per_hour":2.88},{"altitude_ft":39000,"dose_msv":0.05364,"dose_rate_usv_per_hour":3.21},{"altitude_ft":41000,"dose_msv":0.05892,"dose_rate_usv_per_hour":3.53}],"series":{"granularity":"quarter","altitude_ft":35000,"airborne_minutes":1002,"points":[{"month":"2016-01","dose_msv":0.04466},{"month":"2016-04","dose_msv":0.04532},{"month":"2016-07","dose_msv":0.04522},{"month":"2016-10","dose_msv":0.04602},{"month":"2017-01","dose_msv":0.0463},{"month":"2017-04","dose_msv":0.04688},{"month":"2017-07","dose_msv":0.04645},{"month":"2017-10","dose_msv":0.04623},{"month":"2018-01","dose_msv":0.04664},{"month":"2018-04","dose_msv":0.04725},{"month":"2018-07","dose_msv":0.04715},{"month":"2018-10","dose_msv":0.04761},{"month":"2019-01","dose_msv":0.04645},{"month":"2019-04","dose_msv":0.04755},{"month":"2019-07","dose_msv":0.04722},{"month":"2019-10","dose_msv":0.04755},{"month":"2020-01","dose_msv":0.04742},{"month":"2020-04","dose_msv":0.04764},{"month":"2020-07","dose_msv":0.04747},{"month":"2020-10","dose_msv":0.04747},{"month":"2021-01","dose_msv":0.04666},{"month":"2021-04","dose_msv":0.04756},{"month":"2021-07","dose_msv":0.04699},{"month":"2021-10","dose_msv":0.04708},{"month":"2022-01","dose_msv":0.04658},{"month":"2022-04","dose_msv":0.04633},{"month":"2022-07","dose_msv":0.04428},{"month":"2022-10","dose_msv":0.04502},{"month":"2023-01","dose_msv":0.04283},{"month":"2023-04","dose_msv":0.04312},{"month":"2023-07","dose_msv":0.04171},{"month":"2023-10","dose_msv":0.04183},{"month":"2024-01","dose_msv":0.04044},{"month":"2024-04","dose_msv":0.04111},{"month":"2024-07","dose_msv":0.04131},{"month":"2024-10","dose_msv":0.03812},{"month":"2025-01","dose_msv":0.03894},{"month":"2025-04","dose_msv":0.03898},{"month":"2025-07","dose_msv":0.03872},{"month":"2025-10","dose_msv":0.03932},{"month":"2026-01","dose_msv":0.0368},{"month":"2026-04","dose_msv":0.03971},{"month":"2026-07","dose_msv":0.04131},{"month":"2026-08","dose_msv":0.04238}]},"explorer":{"altitudes_ft":[31000,33000,35000,37000,39000,41000],"months":["2016-01","2017-01","2018-01","2019-01","2020-01","2021-01","2022-01","2023-01","2024-01","2025-01","2026-01","2026-08"],"dose_msv":[[0.03314,0.03433,0.03458,0.03444,0.03515,0.0346,0.03454,0.03181,0.03006,0.02896,0.02739,0.03148],[0.03878,0.04019,0.04049,0.04032,0.04115,0.0405,0.04043,0.03721,0.03516,0.03386,0.03202,0.03682],[0.04466,0.0463,0.04664,0.04645,0.04742,0.04666,0.04658,0.04283,0.04044,0.03894,0.0368,0.04238],[0.05067,0.05256,0.05295,0.05273,0.05385,0.05297,0.05288,0.04857,0.04582,0.04409,0.04164,0.04805],[0.05662,0.05877,0.05922,0.05897,0.06024,0.05924,0.05914,0.05423,0.05111,0.04915,0.04638,0.05364],[0.06226,0.06468,0.06519,0.0649,0.06634,0.06521,0.0651,0.05959,0.05609,0.05388,0.05078,0.05892]]},"logged":null,"comparisons":[{"name":"Chest X-Ray","dose_msv":0.1,"flights_per_comparison":2.36},{"name":"Dental X-Ray","dose_msv":0.005,"flights_per_comparison":0.118},{"name":"Background Radiation (Daily)","dose_msv":0.008,"flights_per_comparison":0.189},{"name":"Mammogram","dose_msv":0.4,"flights_per_comparison":9.44},{"name":"Head CT Scan","dose_msv":2,"flights_per_comparison":47.2},{"name":"Eating a Banana","dose_msv":0.0001,"flights_per_comparison":0.00236}],"arc":{"grid_month":"2026-08","points":[[37.62,-122.37,3.51],[38.54,-124.34,3.56],[39.42,-126.35,3.61],[40.27,-128.41,3.64],[41.08,-130.52,3.66],[41.85,-132.69,3.68],[42.58,-134.91,3.7],[43.26,-137.17,3.72],[43.9,-139.49,3.73],[44.49,-141.86,3.74],[45.04,-144.27,3.75],[45.53,-146.72,3.76],[45.96,-149.22,3.76],[46.34,-151.75,3.75],[46.67,-154.32,3.74],[46.94,-156.92,3.72],[47.14,-159.54,3.69],[47.29,-162.17,3.66],[47.38,-164.82,3.62],[47.4,-167.47,3.57],[47.37,-170.12,3.52],[47.27,-172.77,3.47],[47.11,-175.4,3.4],[46.9,-178.02,3.33],[46.62,179.39,3.26],[46.29,176.83,3.21],[45.9,174.3,3.14],[45.45,171.81,3.07],[44.95,169.36,2.99],[44.4,166.96,2.91],[43.8,164.6,2.82],[43.16,162.29,2.73],[42.46,160.03,2.63],[41.73,157.82,2.52],[40.95,155.66,2.41],[40.13,153.56,2.29],[39.28,151.51,2.21],[38.39,149.5,2.15],[37.47,147.55,2.1],[36.51,145.64,2.05],[35.53,143.78,2],[34.52,141.97,1.94],[33.48,140.2,1.89],[32.42,138.47,1.82],[31.34,136.79,1.76],[30.23,135.14,1.69],[29.11,133.53,1.66],[27.96,131.95,1.64],[26.8,130.41,1.62],[25.62,128.9,1.59],[24.42,127.42,1.57],[23.22,125.97,1.55],[21.99,124.54,1.52],[20.76,123.14,1.5],[19.52,121.76,1.48],[18.26,120.4,1.47],[17,119.06,1.46],[15.72,117.74,1.45],[14.44,116.44,1.44],[13.15,115.15,1.44],[11.86,113.87,1.43],[10.56,112.61,1.42],[9.25,111.36,1.42],[7.94,110.11,1.42],[6.63,108.88,1.42],[5.32,107.65,1.42],[4,106.43,1.42],[2.68,105.21,1.43],[1.36,103.99,1.43]]},"attribution":"FlightDose (https://flightdose.com/)"}