| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Sep 17 | CLE | BOS | 11:15 | 13:15 |
Scheduled
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| Sep 14 | CLE | BOS | 11:15 | 13:15 |
Scheduled
|
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| Sep 10 | CLE | BOS | 11:15 | 13:15 |
Scheduled
|
Track > |
| Sep 07 | CLE | BOS | 11:15 | 13:14 |
Delayed
|
Track > |
| Sep 03 | CLE | BOS | 11:15 | 13:14 |
Scheduled
|
Track > |
KLM Flight KL6521 connects Cleveland, United States to Boston, United States, taking off from Cleveland Hopkins International Airport CLE and landing at Boston Logan International Airport BOS.
How many KL6521 flights are operated per week?
2 flights per week. The flight KL6521 is operated on Monday and Thursday.
What is the On-Time Performance (OTP) of KLM Flight KL6521 Cleveland to Boston?
The Airportia On-Time Performance Rating for KLM Flight KL6521 is 5/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight KL6521 arriving at?
Flight KL6521 arrives at Boston Logan International Airport (BOS) Terminal A.
When was the latest KL6521 flight?
The latest flight took off on Thursday, September 17th, 2026 with the flight status being Scheduled on 13:15.
How else can the flight KL6521 be referenced as?
This KLM flight can also be referenced as KLM6521, KL 6521, KLM 6521.
How often is flight KL6521 delayed?
On average, 0% of all KL6521 flights are delayed. The average delay is 0 minutes.
Can I get compensation for my delayed or cancelled KL6521 flight or baggage issues?
If your KL6521 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 KL6521 Flight Tracker above for more details.
Other flights departing from Cleveland CLE: DL1500, YX5674, 9E5018, B62040
Other flights arriving at Boston BOS: B62084, YX5674, 9K3021, 9K3022
All flights connecting Cleveland CLE to Boston BOS.