The cheapest round-trip from Lisbon to Bangkok is about 664 EUR, usually in September 2026; December 2026 is priciest, so booking the low month saves around 143 EUR (~18%). Typical fare ~739 EUR, from 270 priced fares. Flightmussy live data, updated 2026-06-05.
Cheap flights from Lisbon (LIS) to Bangkok (BKK/DMK). Free, no signup, no ads, no tracking. Compare every airline across 12 months of fares on one heatmap — including low-cost carriers Google Flights often deprioritises.
Cheapest round-trip seen: 664 EUR, usually around September 2026. Typical fare ~739 EUR. Across the year prices range roughly 664–807 EUR — about 18% cheaper in the low season than the peak (December 2026). Carriers on this route include Finnair, Etihad, Qatar Airways, KLM.
Based on Flightmussy's live 12-month fare data; prices last updated 2026-06-05. Prices change constantly — search live for current fares.
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