Heathrow → Buenos Aires flight delays
HEATHROW → BUENOS-AIRES · all airlines · 732 flights · May 2025 – April 2026 · source: UK CAA
This route is delayed
16%of the time, by +46 min on average when it does.
This is history, not a promise — your specific flight could well be on time.
On-time rate
84%
Delayed 3h+
0.4%
Cancelled
0.7%
Avg when late
+46m
Were you delayed 3+ hours on this route?
About 0.4% 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 → BUENOS-AIRES run late?
16
25
11
8
14
31
19
11
18
15
8
10
J
F
M
A
M
J
J
A
S
O
N
D
Delays peak in June (31% late).
Frequently asked
How often is the Heathrow to Buenos Aires flight delayed?
About 16% of HEATHROW → BUENOS-AIRES flights arrive late (15+ minutes), by an average of 46 minutes when they do, based on 732 flights in May 2025 – April 2026.
What is the worst month for delays on HEATHROW → BUENOS-AIRES?
June is the worst, with 31% of flights delayed, while April is the most reliable at 8%.
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