Cheapest return flights from Helsinki to Bangkok in September from $521

AirHint found the following cheapest return flights from Helsinki (HEL) to Bangkok (BKK) in September 2026 (see full year).

Return flights

19 Sep - 28 Oct Pegasus Airlines
19 Sep - 31 Oct Pegasus Airlines
03 Sep - 17 Sep Turkish Airlines
03 Sep - 29 Sep Turkish Airlines
21 Sep - 28 Sep Turkish Airlines
21 Sep - 30 Sep Turkish Airlines
01 Sep - 15 Sep Turkish Airlines
07 Sep - 30 Sep Turkish Airlines
24 Sep - 30 Sep Turkish Airlines
12 Sep - 26 Sep Pegasus Airlines
14 Sep - 27 Sep Turkish Airlines
15 Sep - 20 Oct Lufthansa
03 Sep - 06 Sep Turkish Airlines
15 Sep - 20 Oct Finnair direct
19 Sep - 31 Oct Finnair direct
19 Sep - 28 Oct Finnair direct

Also check the deals for one-way flights from Helsinki to Bangkok in September.

Powered by

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

Feel free to contact us with any feedback or request another flight research.