AirHint found the following cheapest return flights from London (LCY) to Bangkok (BKK) in June 2026 (see full year).

Return flights

03 Jun - 08 Jul	KLM
02 Jun - 09 Jun	KLM
03 Jun - 10 Jun	KLM
04 Jun - 15 Jun	KLM
23 Jun - 07 Jul	KLM
16 Jun - 10 Jul	KLM
09 Jun - 14 Jun	KLM
01 Jun - 15 Jun	KLM
01 Jun - 03 Jul	KLM
08 Jun - 29 Jun	KLM
12 Jun - 12 Jul	KLM
08 Jun - 14 Jun	KLM
02 Jun - 21 Jul	KLM
05 Jun - 12 Jun	ITA Airways
30 Jun - 07 Jul	ITA Airways
15 Jun - 29 Jun	KLM
01 Jun - 17 Jun	KLM
24 Jun - 08 Jul	KLM
23 Jun - 02 Jul	KLM
06 Jun - 02 Jul	KLM

Also check the deals for one-way flights from London to Bangkok in June.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in Bangkok

Cheap car rent in Bangkok

Cheapest return flights from London to Bangkok in June from $819

Return flights