AirHint found the following cheapest return flights from Lisbon (LIS) to Bangkok (BKK) in September 2026 (see full year).
Return flights
| 01 Sep - 15 Sep | SWISS | ||
| 04 Sep - 15 Sep | SWISS | ||
| 15 Sep - 24 Sep | SWISS | ||
| 02 Sep - 23 Sep | SWISS | ||
| 16 Sep - 30 Sep | SWISS | ||
| 22 Sep - 04 Oct | SWISS | ||
| 01 Sep - 10 Sep | SWISS | ||
| 13 Sep - 06 Oct | SWISS | ||
| 15 Sep - 22 Sep | Finnair |
Also check the deals for one-way flights from Lisbon to Bangkok in September.
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