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

Return flights

28 May - 15 Jun	Air China
26 May - 06 Jun	Air China
28 May - 09 Jun	Air China
30 May - 11 Jun	Air China
31 May - 10 Jun	Air China
31 May - 15 Jun	Air China
21 May - 08 Jun	Air China
15 May - 29 May	Air China
12 May - 25 May	SWISS
09 May - 19 May	SWISS
13 May - 26 May	SWISS
13 May - 25 May	SWISS
12 May - 19 May	SWISS
28 May - 12 Jun	SWISS
26 May - 12 Jun	SWISS
19 May - 01 Jun	SWISS
12 May - 18 May	SWISS
19 May - 28 May	SWISS
18 May - 28 May	Lufthansa
14 May - 28 May	Lufthansa

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 423€

Return flights