Heathrow → Hanoi flight delays
HEATHROW → HANOI · all airlines · 358 flights · May 2025 – April 2026 · source: UK CAA
This route is delayed
29%of the time, by +51 min on average when it does.
This is history, not a promise — your specific flight could well be on time.
On-time rate
71%
Delayed 3h+
0.8%
Cancelled
0.3%
Avg when late
+51m
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 HEATHROW → HANOI run late?
23
25
19
23
25
J
F
M
A
M
J
J
A
S
O
N
D
Delays peak in February (25% late). This route mainly flies in season — empty months had too few flights to show.
Frequently asked
How often is the Heathrow to Hanoi flight delayed?
About 29% of HEATHROW → HANOI flights arrive late (15+ minutes), by an average of 51 minutes when they do, based on 358 flights in May 2025 – April 2026.
What is the worst month for delays on HEATHROW → HANOI?
February is the worst, with 25% of flights delayed, while March is the most reliable at 19%.
Airport overviews