| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Mar 17 | SEA | DEN | 19:30 | 22:28 |
Delayed
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| Mar 11 | SEA | DEN | 18:03 | 20:55 |
Landed
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| Mar 10 | SEA | DEN | 17:58 | 21:02 |
Landed
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| Mar 04 | SEA | DEN | 17:51 | 21:03 |
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| Mar 03 | SEA | DEN | 17:57 | 21:12 |
Landed
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| Feb 25 | SEA | DEN | 17:59 | 20:52 |
Landed
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| Feb 24 | SEA | DEN | 18:15 | 21:10 |
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| Feb 18 | SEA | DEN | 17:54 | 21:02 |
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| Feb 17 | SEA | DEN | 18:05 | 21:19 |
Landed
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| Oct 25 | SEA | DEN | 14:26 | 17:37 |
Landed Late
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Korean Air Flight KE6121 connects Seattle, United States to Denver, United States, taking off from Seattle Tacoma International Airport SEA and landing at Denver International Airport DEN.
How long is the KE6121 flight from Seattle to Denver?
The average flight time from Seattle to Denver is 2 hours and 4 minutes. The flight distance is 1645 km / 1022 miles and the average flight speed is 799 km/h / 496 mph.
What is the On-Time Performance (OTP) of Korean Air Flight KE6121 Seattle to Denver?
The Airportia On-Time Performance Rating for Korean Air Flight KE6121 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest KE6121 flight?
The latest flight took off on Wednesday, March 18th, 2026 with the flight status being En-Route on 22:28.
How else can the flight KE6121 be referenced as?
This Korean Air flight can also be referenced as KAL6121, KE 6121, KAL 6121.
How often is flight KE6121 delayed?
On average, 20% of all KE6121 flights are delayed. The average delay is 40 minutes.
Can I get compensation for my delayed or cancelled KE6121 flight or baggage issues?
If your KE6121 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.
See our KE6121 Flight Tracker above for more details.
Other flights departing from Seattle SEA: AS612, AS237, DL172, AS237
Other flights arriving at Denver DEN: WN1370, AS612, WN276, WN418
All flights connecting Seattle SEA to Denver DEN.
