| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jul 09 | ICN | LHR | 07:50 | 14:20 |
Scheduled
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| Jul 08 | ICN | LHR | 09:24 | 15:14 |
Delayed
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| Jul 07 | ICN | LHR | 08:31 | 14:23 |
Landed
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| Jul 05 | ICN | LHR | 08:14 | 13:38 |
Landed
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| Jul 04 | ICN | LHR | 08:15 | 13:59 |
Landed
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| Jul 03 | ICN | LHR | 08:39 | 14:14 |
Landed
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| Jul 02 | ICN | LHR | 08:34 | 14:12 |
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| Jul 01 | ICN | LHR | 08:15 | 13:39 |
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| Jun 30 | ICN | LHR | 08:11 | 13:47 |
Landed
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| Jun 29 | ICN | LHR | 08:28 | 13:56 |
Landed
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Asiana Airlines Flight OZ521 connects Seoul, South Korea to London, United Kingdom, taking off from Seoul Incheon International Airport ICN and landing at London Heathrow Airport LHR.
How long is the OZ521 flight from Seoul to London?
The average flight time from Seoul to London is 13 hours and 36 minutes. The flight distance is 8860 km / 5505 miles and the average flight speed is 647 km/h / 402 mph.
How many OZ521 flights are operated per week?
6 flights per week. The flight OZ521 is operated on Monday, Tuesday, Wednesday, Thursday, Friday and Saturday.
What is the On-Time Performance (OTP) of Asiana Airlines Flight OZ521 Seoul to London?
The Airportia On-Time Performance Rating for Asiana Airlines Flight OZ521 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight OZ521 arriving at?
Flight OZ521 arrives at London Heathrow Airport (LHR) Terminal 2.
When was the latest OZ521 flight?
The latest flight took off on Wednesday, July 8th, 2026 with the flight status being En-Route on 15:14.
How else can the flight OZ521 be referenced as?
This Asiana Airlines flight can also be referenced as AAR521, OZ0521, OZ 521, AAR 521.
How often is flight OZ521 delayed?
On average, 20% of all OZ521 flights are delayed. The average delay is 28 minutes.
See our OZ521 Flight Tracker above for more details.
Other flights departing from Seoul ICN: KE841, KE621, LJ735, TW7
Other flights arriving at London LHR: VS317, UA930, BA272, BA9171
All flights connecting Seoul ICN to London LHR.
