Asiana Airlines
Is OZ521 delayed?
Service date: · Scheduled departure date (Asia/Seoul)
Arrived
77 min late
Official source · Updated
Departure
Seoul
ICN
Actual
Scheduled 07:50
Aug 29
Arrival
London
LHR
Actual
Scheduled 14:20
Aug 29
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Actual
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 22 min early
ICN → LHR
- 26 min early
ICN → LHR
- 15 min early
ICN → LHR
- 22 min late
ICN → LHR
- 31 min early
ICN → LHR
Flight history and details
Aug 18, 2026 — Sep 17, 2026
- Observed arrivals
- 27
- Arrivals over 15 minutes late
- 9
- Observed cancellations
- 0
- Observed occurrences
- 28
Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 17, 2026Arrived | Seoul | London | -22 | |
| Sep 16, 2026Arrived | Seoul | London | -26 | |
| Sep 15, 2026Arrived | Seoul | London | -15 | |
| Sep 14, 2026Arrived | Seoul | London | 22 | |
| Sep 13, 2026Arrived | Seoul | London | -31 | |
| Sep 12, 2026Arrived | Seoul | London | -26 | |
| Sep 11, 2026Arrived | Seoul | London | 82 | |
| Sep 10, 2026Arrived | Seoul | London | -5 | |
| Sep 8, 2026Arrived | Seoul | London | 12 | |
| Sep 7, 2026Arrived | Seoul | London | 22 | |
| Sep 6, 2026Arrived | Seoul | London | 9 | |
| Sep 5, 2026Arrived | Seoul | London | 29 | |
| Sep 4, 2026Arrived | Seoul | London | -8 | |
| Sep 3, 2026Arrived | Seoul | London | 17 | |
| Sep 2, 2026Arrived | Seoul | London | 21 | |
| Sep 1, 2026Arrived | Seoul | London | -1 | |
| Aug 31, 2026Arrived | Seoul | London | 4 | |
| Aug 30, 2026Arrived | Seoul | London | -12 | |
| Aug 29, 2026Arrived | Seoul | London | 77 | |
| Aug 28, 2026Arrived | Seoul | London | 3 | |
| Aug 27, 2026Arrived | Seoul | London | 20 | |
| Aug 26, 2026Arrived | Seoul | London | 9 | |
| Aug 25, 2026Arrived | Seoul | London | -13 | |
| Aug 24, 2026Arrived | Seoul | London | 58 | |
| Aug 23, 2026Arrived | Seoul | London | -18 | |
| Aug 22, 2026Arrived | Seoul | London | -17 | |
| Aug 20, 2026Arrived | Seoul | London | -2 |