AirHint found the following cheapest return flights from Manchester (MAN) to Keflavik (KEF) in September 2025 (see full year).

Return flights

28 Sep - 02 Oct	easyJet	direct
25 Sep - 02 Oct	Scandinavian Airlines
11 Sep - 14 Sep	easyJet	direct
07 Sep - 11 Sep	easyJet	direct
04 Sep - 07 Sep	easyJet	direct
25 Sep - 02 Oct	easyJet	direct
14 Sep - 18 Sep	easyJet	direct
11 Sep - 18 Sep	easyJet	direct
23 Sep - 01 Oct	Icelandair	direct
23 Sep - 03 Oct	Icelandair	direct
11 Sep - 27 Sep	easyJet
04 Sep - 11 Sep	easyJet	direct
12 Sep - 27 Sep	Scandinavian Airlines
25 Sep - 27 Sep	Scandinavian Airlines
16 Sep - 28 Sep	easyJet
23 Sep - 04 Oct	Icelandair	direct
30 Sep - 15 Oct	easyJet
26 Sep - 01 Oct	Ryanair

Also check the deals for one-way flights from Manchester to Keflavik 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 Manchester to Keflavik in September from $124

Return flights