Air CanadaAC
Flights AC888 varies Tu Th Fr Su
live
Direct flights from Ottawa (YOW) to London (LHR): 4 nonstop departures observed each week across 1 airline. The median arrival is 14 minutes late. No cancellations were recorded across the 4 tracked flights. The nonstop covers 5,346 km, an estimated 7 hours 21 minutes in the air. Measured by Pro Flight Search from live flight boards at Ottawa and London. Updated 18 September 2026 at 04:14 UTC.
YOW
Ottawa
tracking
LHR
London
smooth · +0
5,346 km · ~7h 21m est.
Running clean · 1 airline · 4x weekly · nonstop
100 / 100
route health from live YOW and LHR delay boards
Median arrival delay is +14 min. 0 of 4 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival+14 minacross the last 4 operated legs
Flight time~7h 21mestimated from route distance
Weekly departures4x1 direct airline on the leg
Who flies it
observed on the boards · 7 daysHistory
operated legs · board outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsnext sweep in 120s
How the Ottawa to London route actually runs
Pro Flight Search records official board updates for nonstop YOW to LHR flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search — Ottawa (YOW) to London (LHR) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/YOW-LHR
YOW to LHR questions
Is YOW–LHR running on time right now?
Smooth skies ahead. Both endpoints currently score the same, route health score 100/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from YOW to LHR?
Great-circle distance is 5,346 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 407–488 min gate-to-gate on this route.
How often does YOW–LHR fly?
Air Canada runs the route with about 4 flights a week (sun, tue, thu, fri). Since one carrier owns the route, a single disruption tends to ripple through the day.
What does the route health score measure?
A blend of departure-side delay at YOW and arrival-side delay at LHR, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.
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