AirHint found the following cheapest return flights from Rome (ROM) to Bangkok (BKK) in May 2026 (see full year).

Return flights

14 May - 27 May	Air China
14 May - 20 May	Air China
14 May - 24 May	Air China
31 May - 05 Jun	Air China
30 May - 07 Jun	Air China
15 May - 28 Jun	Air China
15 May - 29 May	Air China
20 May - 27 May	SWISS
12 May - 25 May	SWISS
12 May - 19 May	SWISS
13 May - 26 May	SWISS
28 May - 10 Jun	SWISS
20 May - 05 Jun	SWISS
16 May - 01 Jun	SWISS
12 May - 02 Jun	SWISS
29 May - 07 Jun	SWISS
19 May - 28 May	SWISS
05 May - 18 May	SWISS
05 May - 30 Jun	SWISS
31 May - 08 Jun	Air China

Also check the deals for one-way flights from Rome to Bangkok in May.

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 Rome to Bangkok in May from $533

Return flights