Every Lisbon–Singapore 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/lisbon-to-singapore/#2026-11-05-2026-11-19-AYhttps://flight.deals/flights/lisbon-to-singapore/#2026-11-05-2026-11-19-AYLIS → SIN round-trip on Finnair, 2026-11-05 to 2026-11-19 (14 nights). Cached fare $666 vs typical $870.Sun, 30 Aug 2026 05:03:17 GMT