Every London–San Juan 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/london-to-san-juan/#2027-02-16-2027-02-23-TPhttps://flight.deals/flights/london-to-san-juan/#2027-02-16-2027-02-23-TPLON → SJU round-trip on TAP Air Portugal, 2027-02-16 to 2027-02-23 (7 nights). Cached fare $859. Not enough cached history on this route yet to say what it usually costs.Wed, 05 Aug 2026 07:53:34 GMT