AirHint found the following cheapest return flights from Newcastle (NCL) to Bangkok (BKK) in September 2026 (see full year).

Return flights

02 Sep - 24 Sep	Ryanair
13 Sep - 08 Oct	Air France
10 Sep - 30 Sep	KLM
01 Sep - 17 Sep	Air France
14 Sep - 28 Sep	KLM
01 Sep - 30 Sep	Ryanair
10 Sep - 24 Sep	KLM
02 Sep - 27 Sep	Ryanair
17 Sep - 08 Oct	KLM
06 Sep - 27 Sep	Air France
05 Sep - 19 Sep	Ryanair
14 Sep - 04 Oct	KLM
20 Sep - 11 Oct	Emirates
19 Sep - 05 Oct	China Eastern

Also check the deals for one-way flights from Newcastle to Bangkok in September.

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 Newcastle to Bangkok in September from 646€

Return flights