| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jul 02 | ICN | LHR | 03:00 | 17:20 |
Scheduled
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| Jun 27 | ICN | LHR | 12:04 | 17:36 |
Landed
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| Jun 25 | ICN | LHR | 12:44 | 18:05 |
Landed
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| Jun 20 | ICN | LHR | 12:39 | 18:07 |
Landed
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| Jun 18 | ICN | LHR | 13:17 | 18:35 |
Landed Late
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| Jun 13 | ICN | LHR | 12:21 | 17:54 |
Landed
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| Jun 11 | ICN | LHR | 12:37 | 18:16 |
Landed
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| Jun 06 | ICN | LHR | 12:29 | 18:02 |
Landed
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| Jun 04 | ICN | LHR | 12:31 | 18:19 |
Landed
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| May 30 | ICN | LHR | 12:26 | 18:33 |
Landed
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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 35 minutes. The flight distance is 8860 km / 5505 miles and the average flight speed is 627 km/h / 389 mph.
How many KE503 flights are operated per week?
3 flights per week. The flight KE503 is operated on Wednesday, 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 5/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest KE503 flight?
The latest flight took off on Thursday, July 2nd, 2026 with the flight status being Scheduled on 17:20.
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, 20% of all KE503 flights are delayed. The average delay is 14 minutes.
See our KE503 Flight Tracker above for more details.
Other flights departing from Seoul ICN: UO615, KE317, VJ979, KE9313
Other flights arriving at London LHR: SQ306, TG910
All flights connecting Seoul ICN to London LHR.
