Cheapest one-way flights from Helsinki to Bangkok in September from $333

Best time to book flights for Helsinki (HEL) to Bangkok (BKK) flights at AirHint

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

One-Way flights

29 Sep Pegasus Airlines
13 Sep airBaltic
01 Sep Norwegian Air Sweden AOC
04 Sep airBaltic
21 Sep Norwegian Air Sweden AOC
23 Sep Finnair
21 Sep Finnair direct
01 Sep Finnair direct
04 Sep Finnair direct
23 Sep Finnair direct

Also check the deals for return 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