Asiana Airlines OZ521 Flight status
According to Trip.com real-time data, the OZ521 flight operated by Asiana Airlines on Sep 20, 2026, flying from Seoul (ICN) to London (LHR), departed at 08:13 (local time in Seoul, UTC+9) and is expected to arrive at 14:03 (local time in London, UTC+1) at Heathrow Airport (LHR).
Sat, Sep 19
Sun, Sep 20
Mon, Sep 21
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Arrived
The flight has arrived 9m early
14h 30m
Check-in Counter
G17-J40
Boarding Gate
258
Arrival Gate
--
Baggage
9
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En route
Your flight has departed Seoul and is expected to arrive in London at 14:03.
14h 30m
Check-in Counter
G17-J40
Boarding Gate
266
Arrival Gate
--
Baggage
--
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Canceled
Please refer to the airline for the latest information
14h 30m
Check-in Counter
G-K
Boarding Gate
--
Arrival Gate
--
Baggage
--
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Information provided by VariFlight For real-time updates, please check airport displays or contact your airline. You can also explore more flights from Seoul to London or track other flights with our flight status tracker.
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OZ521
OZ521 Aircraft Details
According to Trip.com real-time data, the OZ521 flight from Seoul to London on 9/20/2026 is operated using the aircraft model Airbus A350-900. This aircraft has been in service for 5y, 10m. The aircraft has 275 seats.
Airbus A350-900
Punctuality (Departure)
40%
Punctuality (Arrival)
87%
Late on average
6 minutes
Age
5y, 10m
Seats
275
Flight Distance
--
Economy
Business
In-Flight Services
Meal included
Seatback entertainment system
Wi-Fi (additional charge)
USB port and power outlet
Seat Information
--
Legroom
46 cm
Seat width better than on 25% of flights
110°
Reclining Angle
3-3-3
Seat layout example
In-Flight Services
Meal included
Seatback entertainment system
Wi-Fi (additional charge)
USB port and power outlet
Seat Information
196 cm
More legroom than on 50% of flights
56 cm
Seat width better than on 50% of flights
180°
Reclining Angle Fully reclinable
1-2-1
Seat layout example
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Flight History for OZ521
Trip.com historical records show that the last OZ521 flight departed on Sat, Sep 19 from ICN at approximately 08:11. This flight is expected to arrrive in LHR at 14:11.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Tue, Sep 15 | Seoul (ICN) | London (LHR) | 359 | 08:52 | 14:40 | Arrived |
| Wed, Sep 16 | Seoul (ICN) | London (LHR) | 359 | 08:17 | 13:55 | Arrived |
| Thu, Sep 17 | Seoul (ICN) | London (LHR) | 359 | 08:10 | 13:58 | Arrived |
| Fri, Sep 18 | Seoul (ICN) | London (LHR) | 359 | 08:13 | 14:00 | Arrived |
| Sat, Sep 19 | Seoul (ICN) | London (LHR) | 359 | 08:11 | 14:11 | Arrived |
| Sun, Sep 20 | Seoul (ICN) | London (LHR) | 359 | 08:13 | 14:03 | En route |
| Mon, Sep 21 | Seoul (ICN) | London (LHR) | 359 | -- | -- | Canceled |
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OZ521 On-Time Performance
Based on the average performance of this flight over the last 30 trips, the on-time departure rate of OZ521 is 40% (Late on average 42 minutes), and the on-time arrival rate is 87% (Late on average 6 minutes).
On-Time Departures
Punctuality
40%
Late on average 42 minutes
Early
0%
On time
40%
30 mins late
47%
60 mins late
7%
90 mins late
7%
Cancelled
0%
On-Time Arrivals
Punctuality
87%
Late on average 6 minutes
Early
47%
On time
40%
30 mins late
7%
60 mins late
7%
90 mins late
0%
Cancelled
0%
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Flight FAQs
What is the current status of flight oz521?
Flight oz521 has departed (status: En route). Departure 08:13, estimated arrival 14:03 (updated Sep 20, 2026).Is flight oz521 on time today?
Flight oz521 has already departed (status: En route). It took off at 08:13 and is estimated to arrive at 14:03.Has flight oz521 departed yet? What is the departure time?
Flight oz521 is scheduled to depart at 07:50. The latest actual or estimated departure time is 08:13, and the current status is En route (updated Sep 20, 2026).When is flight oz521 scheduled to arrive?
Flight oz521 is scheduled to arrive at 14:20. The latest estimated or actual arrival time is 14:03. Status is En route as of Sep 20, 2026.What is the gate information for flight oz521?
For flight oz521, the departure terminal is T2 and the boarding gate is 266. Gate assignments can change at short notice—confirm on airport screens before heading to security.What route does flight oz521 fly?
Flight oz521 is operated by Asiana Airlines from Seoul (ICN) to London (LHR). Typical flight time is about 14 hours 30 minutes; operating days may include Sunday.How can I check real-time status for flight oz521?
Track flight oz521 on this Trip.com status page for live departure, arrival, gate and baggage updates. For push alerts on the go, open the same flight in the Trip.com App and turn on flight notifications.If flight oz521 is delayed or canceled, what should I do?
If oz521 is delayed or canceled, first confirm the latest status here (En route, updated Sep 20, 2026). Contact Asiana Airlines or your booking channel for rebooking or refund options, and check Trip.com Manage Booking if you booked on Trip.com.Has flight oz521 departed from Seoul?
Flight oz521 has departed from Seoul (ICN) at 08:13 (status: En route).What is the seat configuration for flight oz521?
Flight oz521 usually flies a Airbus A350-900 with seat layout 3-3-3. Layouts can differ by aircraft subtype and cabin product—confirm your seat map in Manage Booking after you purchase.
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Time on arrival: Seoul 22:03| London 14:03
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