Suvarnabhumi (BKK) to Heathrow (LHR).
| Departure | Return | Price |
|---|---|---|
| 06/07/2026 | 06/14/2026 | $748 |
| 06/07/2026 | 06/16/2026 | $748 |
| 06/11/2026 | 06/16/2026 | $748 |
| 06/11/2026 | 06/18/2026 | $748 |
| 06/14/2026 | 06/21/2026 | $748 |
| 06/11/2026 | 06/19/2026 | $761 |
| 06/14/2026 | 06/19/2026 | $761 |
| 06/08/2026 | 06/14/2026 | $775 |
| 06/08/2026 | 06/16/2026 | $775 |
| 06/09/2026 | 06/14/2026 | $775 |
Based on current fares, May is the cheapest month to fly from Bangkok to London, with average fares around $821 round trip (as low as $788).
See the full month-by-month and day-of-week price analysis
Best Time to Fly BKK → LHRDeparture date prices (economy, round trip). Green = cheap, red = expensive.
The cheapest month to fly from Bangkok to London is May, with average round-trip fares around $821. Fares in May start as low as $788. The most expensive month is August, averaging $971.
A nonstop flight from Bangkok to London takes approximately 11h 30m.
The cheapest flight from Bangkok to London currently starts at $748 round trip in economy class.
The average round-trip flight price from Bangkok to London is $902 in economy class.
The distance is 5927 miles (9537 km). with a nonstop flight time of about 11h 30m. The lowest fare currently available is $748 departing in June. The average round-trip fare is $902.
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