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

Return flights

08 Jun - 22 Jun	Air China
06 Jun - 20 Jun	Air China
07 Jun - 21 Jun	Air China
06 Jun - 13 Jun	Air China
07 Jun - 14 Jun	Air China
08 Jun - 15 Jun	Air China
09 Jun - 16 Jun	Air China
10 Jun - 17 Jun	Air China
11 Jun - 18 Jun	Air China
12 Jun - 19 Jun	Air China
17 Jun - 08 Jul	Air China
10 Jun - 07 Jul	Air China
15 Jun - 01 Jul	Air China
03 Jun - 08 Jul	Air China
01 Jun - 06 Jul	Air China
18 Jun - 03 Jul	Air China
13 Jun - 04 Jul	Air China
15 Jun - 15 Jul	Air India
02 Jun - 21 Jul	Air India
16 Jun - 14 Jul	Air India

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 $628

Return flights