BA52British Airways · SEA → LHR
live · 26m ago
Route confirmed British Airways

BA52 SeattleSEA · 14:40 LondonLHR · 07:00

BA52 by British Airways flies from Seattle (SEA) to London (LHR) for the Thu, Oct 29 departure.

Right nowOn time · gate S9 · as of 07:58
14:40

departs SEA · on schedule

Typical arrival−24 minmedian over 5 operations

Where the minutes go

last 5 operations · gate push → arrival
0+30+60+90 min
10-27
−24 arrival
10-24
−28 arrival
10-23
−19 arrival
10-22
−30 arrival
10-21
−12 arrival

The bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.

The last 30 days

arrival outcome per operation

median arrival −24 min · 0 cancelled · 5 operations tracked

The route today

live boards
SEASeattleModerate riskSEA delay board →
LHRLondonOn-time likelyLHR delay board →
SEA→LHRevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
31%Chance of 15+ min delay
2.7%Chance of cancellation
+1 minTypical airport delay in this weather

Conditions at SEA and LHR are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. These figures come from both airports' records under conditions like today's, over the last 90 days.

Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →

Tomorrow on this route

Forecast

Seattle to London with British Airways · Fri 30 Oct, local date

Outlook: about usual
Chance a departure is cancelled
0.9%0.7× usual
Chance a departure leaves 60+ min late
11%1.1× usual

Forecast weather: 82% chance of rain at Seattle; 28% chance of fog at London

Forecast: WeatherTomorrow · incl. data from ECMWF (CC BY 4.0, modified) · About 1 departures a day on this route with this airline. · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other Seattle to London flights today

same route · British Airways
BA48departs 19:45

If BA52 is cancelled, this is the other British Airways nonstop flight from Seattle to London on the same day, with scheduled departure times in SEA local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →

How BA52 actually runs

Pro Flight Search has tracked every published board update for BA52 across the SEA and LHR boards: schedule changes, gate pushes and actual clocks. Usually lands ~24 min early. Based on 5 confirmed landings · 5/5 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how BA52 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocks

Board log

scheduled → actual, per operation
10-27SEA 14:30LHR 07:00 06:36 (−24)
10-24SEA 13:30LHR 05:45 05:17 (−28)
10-23SEA 13:30LHR 06:45 06:26 (−19)
10-22SEA 13:30LHR 06:45 06:15 (−30)
10-21SEA 13:30LHR 06:45 06:33 (−12)

Board clocks recorded as SEA and LHR published them.

Planning around BA52? 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: BA52 Seattle to London on-time performance, measured from the SEA and LHR airport boards.

Canonical URL
https://proflightsearch.com/flight/BA52
How we measure this →