OZ521Asiana Airlines · ICN → LHR

live · 6m ago

Route confirmed Asiana Airlines

OZ521 SeoulICN · 09:40 LondonLHR · 15:35

OZ521 by Asiana Airlines flies from Seoul (ICN) to London (LHR) for the Tue, Nov 10 departure.

Right nowIn the air to London · off blocks 10:11 · 31 min late

14:42

estimated arrival at LHR · local time · ~5h 20m from now

LivePosition · updated 6m ago

LHR2,427 mi · ~5h 20m leftICN

38,000 ftAltitudecruising

512 mphSpeed445 kt

236°Direction

Live position · flown path, last 25 min

⚖ OZ521 typically leaves +28 and lands −27. The air wins minutes back.

Typical gate push+28 minmedian posted departure

Typical arrival−27 minmedian over 15 operations

Wins back in air~55 minmedian gate push vs arrival · how planes make up time → Cancellation0 in 15tracked operations · cancellation odds calculator →

Where the minutes go

last 7 operations · gate push → arrival

0+30+60+90 min

11-10

+31 gate · −53 arrival

11-09

+34 gate · −16 arrival

11-08

+23 gate · −31 arrival

11-07

+32 gate · −3 arrival

11-06

+25 gate · −4 arrival

11-05

+25 gate · −26 arrival

11-04

+29 gate · −30 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 −27 min · 0 cancelled · 15 operations tracked

The route today

live boards

ICNSeoulModerate riskICN delay board →

LHRLondonOn-time likelyLHR delay board →

ICN→LHRevery carrier, schedules and on-time historyRoute intelligence →

Tomorrow at London

Forecast

Wed 11 Nov, local date

High10°Clikely 8°C to 11°C

Low7°Clikely 5°C to 9°C

84% chance of rain

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

When it flies

scheduled departures

061422

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

How OZ521 actually runs

Pro Flight Search has tracked every published board update for OZ521 across the ICN and LHR boards: schedule changes, gate pushes and actual clocks. Usually lands ~27 min early. Based on 13 confirmed landings · 13/13 within 15 min of schedule. Pushes back late but makes up time in the air.

The verdict above is that record speaking, so it reflects how OZ521 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

11-10ICN 09:40 10:11 (+31)LHR 15:35 14:42 (−53)

11-09ICN 09:40 10:14 (+34)LHR 15:35 15:19 (−16)

11-08ICN 09:40 10:03 (+23)LHR 15:35 15:04 (−31)

11-07ICN 09:40 10:12 (+32)LHR 15:35 15:32 (−3)

11-06ICN 09:40 10:05 (+25)LHR 15:35 15:31 (−4)

11-05ICN 09:40 10:05 (+25)LHR 15:35 15:09 (−26)

11-04ICN 09:40 10:09 (+29)LHR 15:35 15:05 (−30)

11-03ICN 09:40 10:08 (+28)LHR 15:35 15:08 (−27)

11-02ICN 09:40 10:03 (+23)LHR 15:35 14:59 (−36)

11-01ICN 09:40 10:15 (+35)LHR 15:35 15:05 (−30)

10-31ICN 09:40 10:12 (+32)LHR 15:35 15:22 (−13)

10-30ICN 09:40 10:08 (+28)LHR 15:35 15:14 (−21)

10-29ICN 09:40 10:10 (+30)LHR 15:35 15:07 (−28)

10-28ICN 09:40 10:06 (+26)LHR 15:35 14:49 (−46)

10-27ICN 09:40 10:04 (+24)LHR 15:35 15:24 (−11)

Board clocks recorded as ICN and LHR published them.

Planning around OZ521? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

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Suggested citation

Pro Flight Search: OZ521 Seoul to London on-time performance, measured from the ICN and LHR airport boards.

Canonical URL

https://proflightsearch.com/flight/OZ521

How we measure this →