Heathrow → Montreal (Dorval) flight delays
HEATHROW → MONTREAL-DORVAL · all airlines · 1,749 flights · May 2025 – April 2026 · source: UK CAA
This route is delayed
22%of the time, by +58 min on average when it does.
This is history, not a promise — your specific flight could well be on time.
On-time rate
78%
Delayed 3h+
0.8%
Cancelled
2.2%
Avg when late
+58m
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 → MONTREAL-DORVAL run late?
38
22
15
14
20
17
25
18
23
13
25
37
J
F
M
A
M
J
J
A
S
O
N
D
Delays peak in January (38% late).
Which airline is most punctual on HEATHROW → MONTREAL-DORVAL?
Air Canadadelayed 18%
British Airways Plcdelayed 26%
Frequently asked
How often is the Heathrow to Montreal (Dorval) flight delayed?
About 22% of HEATHROW → MONTREAL-DORVAL flights arrive late (15+ minutes), by an average of 58 minutes when they do, based on 1,749 flights in May 2025 – April 2026.
Which airline is most punctual on HEATHROW → MONTREAL-DORVAL?
Air Canada, delayed 18% of the time — the best of the 2 airlines flying this route.
What is the worst month for delays on HEATHROW → MONTREAL-DORVAL?
January is the worst, with 38% of flights delayed, while October is the most reliable at 13%.
Airport overviews