Every San Francisco–Istanbul fare we track, measured against the route's typical price whenever there is enough cached history to build one. Subscribe in any RSS reader for free single-route price alerts — no account, no email needed.https://flight.dealsen-ushttps://flight.deals/flights/san-francisco-to-istanbul/#2026-12-29-2027-01-16-LHhttps://flight.deals/flights/san-francisco-to-istanbul/#2026-12-29-2027-01-16-LHSFO → IST round-trip on Lufthansa, 2026-12-29 to 2027-01-16 (18 nights). Cached fare $866 vs typical $890.Sun, 30 Aug 2026 05:03:17 GMT