Cheapest return flights from Helsinki to Bangkok in September from 457€

AirHint found the following cheapest return flights from Helsinki (HEL) to Bangkok (BKK) in September 2025 (see full year).

Return flights

23 Sep - 23 Oct Pegasus Airlines
23 Sep - 28 Oct Pegasus Airlines
29 Sep - 26 Oct Pegasus Airlines
20 Sep - 31 Oct Pegasus Airlines
22 Sep - 27 Oct Pegasus Airlines
23 Sep - 29 Oct Pegasus Airlines
30 Sep - 30 Oct Pegasus Airlines
29 Sep - 30 Oct Pegasus Airlines
26 Sep - 06 Oct Pegasus Airlines
30 Sep - 31 Oct Pegasus Airlines
17 Sep - 25 Sep Pegasus Airlines
25 Sep - 29 Sep Pegasus Airlines
23 Sep - 30 Sep Norwegian Air Sweden AOC
22 Sep - 29 Sep Pegasus Airlines
17 Sep - 28 Sep Pegasus Airlines
17 Sep - 27 Sep Pegasus Airlines
18 Sep - 29 Sep Pegasus Airlines
18 Sep - 28 Sep Pegasus Airlines
16 Sep - 30 Sep Norwegian Air Sweden AOC
16 Sep - 23 Sep Norwegian Air Sweden AOC

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

Skyscanner

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.