Heathrow → Keflavik flight delays
HEATHROW → KEFLAVIK · all airlines · 2,190 flights · May 2025 – April 2026 · source: UK CAA
This route is delayed
14%of the time, by +55 min on average when it does.
This is history, not a promise — your specific flight could well be on time.
On-time rate
86%
Delayed 3h+
0.7%
Cancelled
1%
Avg when late
+55m
Were you delayed 3+ hours on this route?
About 0.7% of these flights land 3h+ late. If yours did, under UK261 you could be owed up to £520 — and you can claim it yourself for free. Check if you're owed →
When does HEATHROW → KEFLAVIK run late?
11
10
11
9
17
13
19
17
19
14
10
22
J
F
M
A
M
J
J
A
S
O
N
D
Delays peak in December (22% late).
Which airline is most punctual on HEATHROW → KEFLAVIK?
British Airways Plcdelayed 13%
Icelandairdelayed 15%
Frequently asked
How often is the Heathrow to Keflavik flight delayed?
About 14% of HEATHROW → KEFLAVIK flights arrive late (15+ minutes), by an average of 55 minutes when they do, based on 2,190 flights in May 2025 – April 2026.
Which airline is most punctual on HEATHROW → KEFLAVIK?
British Airways Plc, delayed 13% of the time — the best of the 2 airlines flying this route.
What is the worst month for delays on HEATHROW → KEFLAVIK?
December is the worst, with 22% of flights delayed, while April is the most reliable at 9%.
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