Cheap flights from London to Bangkok
Yes — prices are unusually low right now. The cheapest London–Bangkok return we've seen recently is £360; the median across 260 observations is £444, and the lowest we've ever recorded is £347 (8 October 2026).
Prices last observed 20 October 2026 · 260 observations · 32 days of history
Based on 260 daily price observations by Flight Signal since 26 Jul 2026, the median return fare London–Bangkok is £444; the cheapest we've recorded is £347 (8 Oct 2026).
Is now a good time to book?
The cheapest London–Bangkok return we observed in the last 10 days is £360. Over 260 observations the median is £444 (cheapest quartile £381, dearest quartile £531). Our method: we compare the cheapest fare observed in the last 10 days against the full distribution of every fare we've recorded on this route — how the scoring works.
Cheapest by London airport
Lowest return fare we've attributed to each departure airport (metro-only "LON" fares are excluded — they can't be pinned to one airport).
| Airport | Cheapest observed |
|---|---|
| LHR | £363 |
| LGW | £347 |
| LTN | £455 |
| STN | £409 |
Track this route
Flight Signal watches London–Bangkok fares every day and pushes the genuine drops to your phone — scored against this exact history, with a booking link.
Get deal alerts for BangkokFrequently asked
What is the cheapest London to Bangkok flight?
The cheapest return fare Flight Signal has observed on London–Bangkok is £347, recorded on 8 October 2026. Across 260 observations the median is £444.
Is now a good time to book a flight from London to Bangkok?
Yes — prices are unusually low right now. The cheapest London–Bangkok return we observed in the last 10 days is £360. Over 260 observations the median is £444 (cheapest quartile £381, dearest quartile £531).
How much does a return flight from London to Bangkok usually cost?
The median observed return fare is £444, with most fares between £381 (cheapest quartile) and £531 (dearest quartile), based on 260 daily observations.
Which London airport is cheapest for flights to Bangkok?
In our observations the cheapest fare to Bangkok departed from LGW (£347). We track all five London airports — Heathrow, Gatwick, City, Luton and Stansted.
Prices are cached observations from licensed fare data, indicative until you check live. Flight Signal never auto-books.