| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Dec 31 | GUM | ICN | 21:56 | 01:16 |
Landed
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| Dec 30 | GUM | ICN | 21:59 | 01:34 |
Landed
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| Dec 29 | GUM | ICN | 21:54 | 01:16 |
Landed
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| Dec 28 | GUM | ICN | 21:58 | 01:40 |
Landed
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| Dec 27 | GUM | ICN | 21:54 | 01:26 |
Landed
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| Dec 26 | GUM | ICN | 21:48 | 01:04 |
Landed
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| Dec 25 | GUM | ICN | 21:48 | 01:15 |
Landed
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| Dec 24 | GUM | ICN | 21:52 | 01:20 |
Landed
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| Dec 23 | GUM | ICN | 21:44 | 01:16 |
Landed
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| Dec 22 | GUM | ICN | 21:47 | 01:10 |
Landed
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Korean Air Flight KE8420 connects Guam, Guam to Seoul, South Korea, taking off from Guam Antonio B. Won Pat International Airport GUM and landing at Seoul Incheon International Airport ICN.
How long is the KE8420 flight from Guam to Seoul?
The average flight time from Guam to Seoul is 4 hours and 27 minutes. The flight distance is 3227 km / 2005 miles and the average flight speed is 724 km/h / 450 mph.
What is the On-Time Performance (OTP) of Korean Air Flight KE8420 Guam to Seoul?
The Airportia On-Time Performance Rating for Korean Air Flight KE8420 is 5/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight KE8420 arriving at?
Flight KE8420 arrives at Seoul Incheon International Airport (ICN) Terminal 2.
When was the latest KE8420 flight?
The latest flight took off on Wednesday, December 31st, 2025 with the flight status being Landed on 01:16.
How else can the flight KE8420 be referenced as?
This Korean Air flight can also be referenced as KAL8420, KE 8420, KAL 8420.
How often is flight KE8420 delayed?
On average, 0% of all KE8420 flights are delayed. The average delay is 0 minutes.
See our KE8420 Flight Tracker above for more details.
Other flights departing from Guam GUM: TW516, RS106, LJ920, KE8426
Other flights arriving at Seoul ICN: 5Y310, OZ948, LJ920, 5Y8941
All flights connecting Guam GUM to Seoul ICN.