AirHint found the following cheapest return flights from Bangkok (BKK) to Lisbon (LIS) in September 2026 (see full year).
Return flights
| 07 Sep - 03 Oct | Etihad Airways | ||
| 18 Sep - 27 Sep | Qatar Airways | ||
| 15 Sep - 24 Sep | TAP | ||
| 02 Sep - 08 Sep | TAP | ||
| 11 Sep - 24 Sep | TAP |
Also check the deals for one-way flights from Bangkok to Lisbon in September.
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