Heathrow → Singapore flight delays
HEATHROW → SINGAPORE · all airlines · 3,589 flights · May 2025 – April 2026 · source: UK CAA
This route is delayed
20%of the time, by +44 min on average when it does.
This is history, not a promise — your specific flight could well be on time.
On-time rate
80%
Delayed 3h+
0.3%
Cancelled
0.4%
Avg when late
+44m
Were you delayed 3+ hours on this route?
About 0.3% 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 → SINGAPORE run late?
21
15
9
26
25
36
32
11
20
21
9
15
J
F
M
A
M
J
J
A
S
O
N
D
Delays peak in June (36% late).
Which airline is most punctual on HEATHROW → SINGAPORE?
British Airways Plcdelayed 19%
Singapore Airlinesdelayed 20%
Frequently asked
How often is the Heathrow to Singapore flight delayed?
About 20% of HEATHROW → SINGAPORE flights arrive late (15+ minutes), by an average of 44 minutes when they do, based on 3,589 flights in May 2025 – April 2026.
Which airline is most punctual on HEATHROW → SINGAPORE?
British Airways Plc, delayed 19% of the time — the best of the 2 airlines flying this route.
What is the worst month for delays on HEATHROW → SINGAPORE?
June is the worst, with 36% of flights delayed, while March is the most reliable at 9%.
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