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

Return flights

21 Apr - 19 May	Air China
23 Apr - 14 May	Air China
20 Apr - 11 May	Air China
08 Apr - 10 May	Air China
08 Apr - 17 May	Air China
08 Apr - 21 May	Air China
23 Apr - 10 May	Air China
08 Apr - 19 May	Air China
08 Apr - 18 May	Air China
07 Apr - 14 May	Air China
09 Apr - 28 Apr	Norwegian Air Sweden AOC
07 Apr - 28 Apr	Norwegian
07 Apr - 24 Apr	China Eastern
07 Apr - 30 Apr	China Eastern
10 Apr - 28 Apr	China Eastern
10 Apr - 21 Apr	China Eastern
10 Apr - 20 Apr	China Eastern
10 Apr - 26 Apr	China Eastern
10 Apr - 30 Apr	China Eastern
13 Apr - 19 Apr	China Eastern

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

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 April from 489€

Return flights