Cheapest return flights from Southend to Keflavik in September from $328

Best time to book flights for Southend (SEN) to Keflavik (KEF) flights at AirHint

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

Return flights

18 Sep - 25 Sep easyJet
19 Sep - 26 Sep easyJet
26 Sep - 03 Oct easyJet
05 Sep - 10 Sep easyJet
12 Sep - 19 Sep easyJet
10 Sep - 17 Sep easyJet
11 Sep - 18 Sep easyJet
18 Sep - 22 Sep easyJet
24 Sep - 01 Oct easyJet
17 Sep - 24 Sep easyJet
10 Sep - 18 Sep easyJet
10 Sep - 24 Sep easyJet
28 Sep - 15 Oct easyJet
26 Sep - 05 Oct easyJet
29 Sep - 03 Oct easyJet
22 Sep - 26 Oct easyJet

Also check the deals for one-way flights from Southend 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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik