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

Return flights

07 Sep - 21 Sep	Ryanair
02 Sep - 26 Sep	Air France
22 Sep - 28 Sep	Air France
15 Sep - 07 Oct	Air France
15 Sep - 08 Oct	Air France
16 Sep - 08 Oct	Air France
16 Sep - 14 Oct	Air France
04 Sep - 19 Sep	Air France
12 Sep - 26 Sep	Air France
10 Sep - 08 Oct	Air France
17 Sep - 27 Sep	KLM
21 Sep - 12 Oct	KLM
11 Sep - 12 Oct	KLM
01 Sep - 23 Sep	Ryanair
26 Sep - 10 Oct	Ryanair
15 Sep - 09 Oct	Ryanair
18 Sep - 11 Oct	Air France
15 Sep - 25 Sep	Ryanair
14 Sep - 25 Sep	Etihad Airways

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 $773

Return flights