| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Aug 15 | ICN | LHR | 12:39 | 18:01 |
Landed
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| Aug 13 | ICN | LHR | 12:31 | 18:02 |
Landed
|
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| Aug 08 | ICN | LHR | 12:22 | 17:22 |
Landed
|
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| Aug 06 | ICN | LHR | 12:26 | 17:35 |
Landed
|
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| Aug 01 | ICN | LHR | 12:20 | 17:29 |
Landed
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| Jul 30 | ICN | LHR | 12:48 | 18:03 |
Landed Late
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| Jul 25 | ICN | LHR | 12:45 | 18:01 |
Delayed
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| Jul 23 | ICN | LHR | 13:01 | 18:04 |
Delayed
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| Jul 18 | ICN | LHR | 12:17 | 17:40 |
Landed Late
|
Track > |
| Jul 16 | ICN | LHR | 12:34 | 18:20 |
Delayed
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Track > |
Korean Air Flight KE503 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 KE503 flight from Seoul to London?
The average flight time from Seoul to London is 13 hours and 17 minutes. The flight distance is 8860 km / 5505 miles and the average flight speed is 667 km/h / 414 mph.
How many KE503 flights are operated per week?
2 flights per week. The flight KE503 is operated on Thursday and Saturday.
What is the On-Time Performance (OTP) of Korean Air Flight KE503 Seoul to London?
The Airportia On-Time Performance Rating for Korean Air Flight KE503 is 4.7/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight KE503 arriving at?
Flight KE503 arrives at London Heathrow Airport (LHR) Terminal 9.
When was the latest KE503 flight?
The latest flight took off on Saturday, August 15th, 2026 with the flight status being Landed on 18:01.
How else can the flight KE503 be referenced as?
This Korean Air flight can also be referenced as KAL503, KE0503, KE 503, KAL 503.
How often is flight KE503 delayed?
On average, 50% of all KE503 flights are delayed. The average delay is 41 minutes.
See our KE503 Flight Tracker above for more details.
Other flights departing from Seoul ICN: BR169, MU2040, 7C1615, BR145
Other flights arriving at London LHR: CX239, MU551, BA60, BA198
All flights connecting Seoul ICN to London LHR.
