| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Mar 07 | ORD | BOS | 14:10 | 16:58 |
Landed
|
Track > |
| Mar 05 | ORD | BOS | 14:51 | 17:40 |
Landed
|
Track > |
| Mar 04 | ORD | BOS | 15:43 | 18:33 |
Landed Late
|
Track > |
| Mar 03 | ORD | BOS | 15:03 | 18:14 |
Landed Late
|
Track > |
| Mar 02 | ORD | BOS | 16:21 | 19:06 |
Delayed
|
Track > |
| Mar 01 | ORD | BOS | 14:54 | 17:51 |
Unknown
|
Track > |
| Feb 28 | ORD | BOS | 14:15 | 16:59 |
Landed
|
Track > |
| Feb 27 | ORD | BOS | 14:47 | 17:31 |
Landed
|
Track > |
| Feb 26 | ORD | BOS | 14:47 | 17:33 |
Landed
|
Track > |
| Feb 25 | ORD | BOS | 14:54 | 17:46 |
Landed
|
Track > |
KLM Flight KL6921 connects Chicago, United States to Boston, United States, taking off from Chicago O'Hare International Airport ORD and landing at Boston Logan International Airport BOS.
How long is the KL6921 flight from Chicago to Boston?
The average flight time from Chicago to Boston is 1 hour and 49 minutes. The flight distance is 1391 km / 864 miles and the average flight speed is 744 km/h / 462 mph.
What is the On-Time Performance (OTP) of KLM Flight KL6921 Chicago to Boston?
The Airportia On-Time Performance Rating for KLM Flight KL6921 is 4.8/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight KL6921 arriving at?
Flight KL6921 arrives at Boston Logan International Airport (BOS) Terminal A.
When was the latest KL6921 flight?
The latest flight took off on Saturday, March 7th, 2026 with the flight status being Landed on 16:58.
How else can the flight KL6921 be referenced as?
This KLM flight can also be referenced as KLM6921, KL 6921, KLM 6921.
How often is flight KL6921 delayed?
On average, 30% of all KL6921 flights are delayed. The average delay is 46 minutes.
Can I get compensation for my delayed or cancelled KL6921 flight or baggage issues?
If your KL6921 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 KL6921 Flight Tracker above for more details.
Other flights departing from Chicago ORD: DL5612, OO5269, AA3644, DL4481
Other flights arriving at Boston BOS: DL407, B62970, DL5612, B61218
All flights connecting Chicago ORD to Boston BOS.