Heathrow → Sofia flight delays
HEATHROW → SOFIA · all airlines · 826 flights · May 2025 – April 2026 · source: UK CAA
This route is delayed
23%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
77%
Delayed 3h+
0.1%
Cancelled
0%
Avg when late
+46m
Were you delayed 3+ hours on this route?
About 0.1% 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 → SOFIA run late?
20
20
9
17
24
38
34
24
49
22
6
9
J
F
M
A
M
J
J
A
S
O
N
D
Delays peak in September (49% late).
Which airline is most punctual on HEATHROW → SOFIA?
Bulgaria Airdelayed 22%
British Airways Plcdelayed 24%
Frequently asked
How often is the Heathrow to Sofia flight delayed?
About 23% of HEATHROW → SOFIA flights arrive late (15+ minutes), by an average of 46 minutes when they do, based on 826 flights in May 2025 – April 2026.
Which airline is most punctual on HEATHROW → SOFIA?
Bulgaria Air, delayed 22% of the time — the best of the 2 airlines flying this route.
What is the worst month for delays on HEATHROW → SOFIA?
September is the worst, with 49% of flights delayed, while November is the most reliable at 6%.
Airport overviews