AirHint found the following cheapest return flights from Tehran (IKA) to Bangkok (BKK) in December 2025 (see full year).

Return flights

15 Dec - 14 Jan	SalamAir
09 Dec - 26 Dec	SalamAir
21 Dec - 25 Dec	SalamAir
10 Dec - 27 Dec	SalamAir
25 Dec - 15 Jan	SalamAir
06 Dec - 13 Dec	SalamAir
16 Dec - 14 Jan	SalamAir
12 Dec - 21 Dec	SalamAir
17 Dec - 25 Dec	Air Arabia
15 Dec - 25 Dec	Air Arabia
16 Dec - 26 Dec	Air Arabia
18 Dec - 26 Dec	Air Arabia
22 Dec - 27 Dec	Air Arabia

Also check the deals for one-way flights from Tehran to Bangkok in December.

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.

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Cheapest return flights from Tehran to Bangkok in December from 480€

Return flights