Delayly.HONEST DELAY ODDS

HeathrowKuala Lumpur (Sepang) flight delays

HEATHROWKUALA-LUMPUR-SEPANG · all airlines · 2,198 flights · May 2025 – April 2026 · source: UK CAA

This route is delayed
17%of the time, by +58 min on average when it does.
This is history, not a promise — your specific flight could well be on time.
On-time rate
83%
Delayed 3h+
0.8%
Cancelled
0.5%
Avg when late
+58m
Were you delayed 3+ hours on this route?
About 0.8% 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 HEATHROWKUALA-LUMPUR-SEPANG run late?
16
14
17
23
21
20
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12
18
19
11
14
J
F
M
A
M
J
J
A
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D
Delays peak in April (23% late).
Which airline is most punctual on HEATHROWKUALA-LUMPUR-SEPANG?
British Airways Plcdelayed 16%
Malaysian Airlines System-Masdelayed 18%
Frequently asked
How often is the Heathrow to Kuala Lumpur (Sepang) flight delayed?
About 17% of HEATHROW → KUALA-LUMPUR-SEPANG flights arrive late (15+ minutes), by an average of 58 minutes when they do, based on 2,198 flights in May 2025 – April 2026.
Which airline is most punctual on HEATHROW → KUALA-LUMPUR-SEPANG?
British Airways Plc, delayed 16% of the time — the best of the 2 airlines flying this route.
What is the worst month for delays on HEATHROW → KUALA-LUMPUR-SEPANG?
April is the worst, with 23% of flights delayed, while November is the most reliable at 11%.
Airport overviews
All flights from Heathrow
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