Every London–Tokyo 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-tokyo/#2026-09-12-2026-09-27-CZhttps://flight.deals/flights/london-to-tokyo/#2026-09-12-2026-09-27-CZLON → TYO round-trip on China Southern, 2026-09-12 to 2026-09-27 (15 nights). Cached fare $642 vs typical $735.Sun, 30 Aug 2026 05:03:17 GMT