Cheapest return flights from Newcastle to Keflavik in September from $227

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

Return flights

28 Sep - 01 Oct KLM
04 Sep - 07 Sep Ryanair
11 Sep - 14 Sep KLM
05 Sep - 10 Sep Ryanair
26 Sep - 28 Sep Ryanair
02 Sep - 05 Sep Ryanair
17 Sep - 19 Sep Ryanair
15 Sep - 19 Sep Ryanair
16 Sep - 20 Sep Ryanair
30 Sep - 09 Oct British Airways
16 Sep - 21 Sep easyJet

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

Skyscanner

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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