Every Lisbon–Buenos Aires 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-buenos-aires/#2026-12-04-2026-12-12-UXhttps://flight.deals/flights/lisbon-to-buenos-aires/#2026-12-04-2026-12-12-UXLIS → EZE round-trip on Air Europa, 2026-12-04 to 2026-12-12 (8 nights). Cached fare $995 vs typical $1,200.Tue, 01 Sep 2026 12:09:07 GMT