Every Lisbon–Brussels 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-brussels/#2026-10-09-2026-10-13-FRhttps://flight.deals/flights/lisbon-to-brussels/#2026-10-09-2026-10-13-FRLIS → BRU round-trip on Ryanair, 2026-10-09 to 2026-10-13 (4 nights). Cached fare $124. Not enough cached history on this route yet to say what it usually costs.Tue, 01 Sep 2026 12:09:07 GMT