AirHint found the following cheapest return flights from London (STN) to Keflavik (KEF) in July 2026 (see full year).

Return flights

01 Jul - 07 Jul	Ryanair
03 Jul - 11 Jul	Ryanair
01 Jul - 08 Jul	Ryanair
03 Jul - 16 Jul	easyJet
09 Jul - 18 Jul	Ryanair
01 Jul - 10 Jul	Ryanair
31 Jul - 08 Aug	easyJet
01 Jul - 09 Jul	Ryanair
24 Jul - 31 Jul	Ryanair
03 Jul - 10 Jul	Ryanair
09 Jul - 16 Jul	Ryanair

Also check the deals for one-way flights from London to Keflavik in July.

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

Cheapest return flights from London to Keflavik in July from 289€

Return flights