Air CanadaAC0% on time
Flights AC889 varies Mo We Th Sa
live
Direct flights from London (LHR) to Ottawa (YOW): 4 nonstop departures observed each week across 1 airline. 0% of the last 5 operated flights arrived within 15 minutes of schedule. The median arrival is 22 minutes late. No cancellations were recorded across the 5 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 London and Ottawa. Updated 17 August 2026 at 16:18 UTC.
LHR
London
heavy · +37
YOW
Ottawa
tracking
5,346 km · ~7h 21m est.
Runs rough · 1 airline · 4x weekly · nonstop
0% on time
of the last 5 operated LHR → YOW flights arrived within 15 minutes
Median arrival delay is +22 min. 0 of 5 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Search live fares for this route →Median arrival+22 minacross the last 5 operated legs
Flight time~7h 21mestimated from route distance
Weekly departures4x1 direct airline on the leg
Current nonstop fares
LHR → YOW · one way · economy · 1 adult
TodayChecking…Direct airline fares
TomorrowChecking…Direct airline fares
In one weekChecking…Direct airline fares
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 London to Ottawa route actually runs
Pro Flight Search tracks every published board update for nonstop LHR to YOW flights: 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. Fares link straight to the operating airline with no markups.
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 — London (LHR) to Ottawa (YOW) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/LHR-YOW
LHR to YOW questions
Is LHR–YOW running on time right now?
Significant delay risk. The departure side at LHR is the weaker end, route health score 50/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from LHR to YOW?
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 LHR–YOW fly?
Air Canada runs the route with about 4 flights a week (mon, wed, thu, sat). 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 LHR and arrival-side delay at YOW, 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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