Sat 7 Nov, 07:35
LHR → KEF
£255.00
Out Sat 7 Nov, 07:35 · British Airways
Back Sun 8 Nov, 17:50 · British Airways
Cheap weekend breaks from London to Keflavik
Cheapest weekend return flights from London (LHR) to Keflavik (KEF) - out Friday evening or Saturday morning, back Sunday, by weekend. Updated daily.
How much is a weekend break from London to Keflavik?
Return flights from London to Keflavik for a weekend start at £255, with 2 upcoming weekends to choose from.
Sat 14 Nov, 07:35
LHR → KEF
£280.00
Out Sat 14 Nov, 07:35 · British Airways
Back Sun 15 Nov, 17:50 · British Airways
13 more weekends to compare
Weekends more than 4 weeks out are members-only. Membership compares every upcoming weekend, with price history and advanced search.
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A taste of Keflavik
From our trip to Iceland
Photos we took ourselves in October 2025.
Good to know
What's the cheapest weekend to fly London to Keflavik?
The cheapest upcoming weekend from London to Keflavik is £255 return. Every available weekend is listed above with its exact dates and flight times, updated daily.
Is Keflavik doable in a weekend from London?
Yes - with a Friday-evening or Saturday-morning outbound and a Sunday return you get up to two nights in Keflavik, enough for a relaxed first visit to the main sights without using any annual leave.