AirHint found the following cheapest return flights from Belfast (BHD) to Tokyo (NRT) in September 2025 (see full year).

Return flights

01 Sep - 16 Sep	easyJet
03 Sep - 13 Sep	easyJet
04 Sep - 14 Sep	easyJet
03 Sep - 18 Sep	easyJet
02 Sep - 16 Sep	easyJet
04 Sep - 13 Sep	easyJet
24 Sep - 30 Sep	easyJet
02 Sep - 03 Sep	easyJet
26 Sep - 03 Oct	easyJet
26 Sep - 04 Oct	Aer Lingus
25 Sep - 02 Oct	British Airways
11 Sep - 25 Sep	KLM
18 Sep - 06 Oct	KLM

Also check the deals for one-way flights from Belfast to Tokyo 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 Belfast to Tokyo in September from $1136

Return flights