| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jul 03 | STL | DTW | 17:54 | 20:00 |
Landed
|
Track > |
| Jul 02 | STL | DTW | 17:58 | 20:01 |
Landed
|
Track > |
| Jul 01 | STL | DTW | 18:15 | 20:19 |
Landed
|
Track > |
| Jun 30 | STL | DTW | 18:09 | 20:13 |
Landed
|
Track > |
| Jun 29 | STL | DTW | 18:02 | 20:12 |
Landed
|
Track > |
KLM Flight KL6421 connects St. Louis, United States to Detroit, United States, taking off from St. Louis Lambert International Airport STL and landing at Detroit Metropolitan Wayne County Airport DTW.
How long is the KL6421 flight from St. Louis to Detroit?
The average flight time from St. Louis to Detroit is 1 hour and 5 minutes. The flight distance is 707 km / 439 miles and the average flight speed is 650 km/h / 404 mph.
What is the On-Time Performance (OTP) of KLM Flight KL6421 St. Louis to Detroit?
The Airportia On-Time Performance Rating for KLM Flight KL6421 is 5/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight KL6421 arriving at?
Flight KL6421 arrives at Detroit Metropolitan Wayne County Airport (DTW) Terminal M.
When was the latest KL6421 flight?
The latest flight took off on Friday, July 4th, 2025 with the flight status being Landed on 20:00.
How else can the flight KL6421 be referenced as?
This KLM flight can also be referenced as KLM6421, KL 6421, KLM 6421.
How often is flight KL6421 delayed?
On average, 0% of all KL6421 flights are delayed. The average delay is 0 minutes.
Can I get compensation for my delayed or cancelled KL6421 flight or baggage issues?
If your KL6421 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 KL6421 Flight Tracker above for more details.
Incoming flight is DL3934 Detroit DTW to St. Louis STL.
This is a multi leg flight of KLM KL6421. Previous leg is Detroit to St. Louis
Other flights departing from St. Louis STL: AA3727, DL3934, NK2857, AA6512
Other flights arriving at Detroit DTW: NK2847, NK2675, DL3934, DL522
All flights connecting St. Louis STL to Detroit DTW.
