Heathrow → Bangkok Suvarnabhumi flight delays
HEATHROW → BANGKOK-SUVARNABHUMI · all airlines · 1,467 flights · May 2025 – April 2026 · source: UK CAA
This route is delayed
19%of the time, by +41 min on average when it does.
This is history, not a promise — your specific flight could well be on time.
On-time rate
81%
Delayed 3h+
0.2%
Cancelled
0.1%
Avg when late
+41m
Were you delayed 3+ hours on this route?
About 0.2% 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 → BANGKOK-SUVARNABHUMI run late?
16
19
13
29
36
25
22
8
22
19
6
10
J
F
M
A
M
J
J
A
S
O
N
D
Delays peak in May (36% late).
Frequently asked
How often is the Heathrow to Bangkok Suvarnabhumi flight delayed?
About 19% of HEATHROW → BANGKOK-SUVARNABHUMI flights arrive late (15+ minutes), by an average of 41 minutes when they do, based on 1,467 flights in May 2025 – April 2026.
What is the worst month for delays on HEATHROW → BANGKOK-SUVARNABHUMI?
May is the worst, with 36% of flights delayed, while November is the most reliable at 6%.
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