Heathrow → Prague flight delays
HEATHROW → PRAGUE · all airlines · 3,428 flights · May 2025 – April 2026 · source: UK CAA
This route is delayed
19%of the time, by +45 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
0.6%
Avg when late
+45m
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 → PRAGUE run late?
22
11
10
11
16
23
25
18
33
19
15
24
J
F
M
A
M
J
J
A
S
O
N
D
Delays peak in September (33% late).
Frequently asked
How often is the Heathrow to Prague flight delayed?
About 19% of HEATHROW → PRAGUE flights arrive late (15+ minutes), by an average of 45 minutes when they do, based on 3,428 flights in May 2025 – April 2026.
What is the worst month for delays on HEATHROW → PRAGUE?
September is the worst, with 33% of flights delayed, while March is the most reliable at 10%.
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