| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jul 13 | ACK | BOS | 19:52 | 20:39 |
Landed
|
Track > |
| Jul 12 | ACK | BOS | 20:05 | 20:38 |
Landed
|
Track > |
| Jul 06 | ACK | BOS | 19:46 | 20:19 |
Landed
|
Track > |
| Jul 05 | ACK | BOS | 20:07 | 20:43 |
Landed
|
Track > |
| Jun 29 | ACK | BOS | 19:54 | 20:28 |
Landed
|
Track > |
| Jun 28 | ACK | BOS | 19:50 | 20:45 |
Cancelled
|
Track > |
| Claim > | ||||||
| Jun 22 | ACK | BOS | 19:50 | 20:45 |
Cancelled
|
Track > |
| Jun 21 | ACK | BOS | 20:07 | 20:44 |
Landed
|
Track > |
| Jun 15 | ACK | BOS | 19:54 | 20:29 |
Landed
|
Track > |
| Jun 14 | ACK | BOS | 20:03 | 20:46 |
Landed
|
Track > |
Cape Air Flight 9K5621 connects Nantucket, United States to Boston, United States, taking off from Nantucket Memorial Airport ACK and landing at Boston Logan International Airport BOS.
How long is the 9K5621 flight from Nantucket to Boston?
The average flight time from Nantucket to Boston is 37 minutes. The flight distance is 146 km / 91 miles and the average flight speed is 223 km/h / 139 mph.
How many 9K5621 flights are operated per week?
1 flight per week. The flight 9K5621 is operated on Monday.
What is the On-Time Performance (OTP) of Cape Air Flight 9K5621 Nantucket to Boston?
The Airportia On-Time Performance Rating for Cape Air Flight 9K5621 is 5/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight 9K5621 arriving at?
Flight 9K5621 arrives at Boston Logan International Airport (BOS) Terminal C.
When was the latest 9K5621 flight?
The latest flight took off on Tuesday, July 14th, 2026 with the flight status being Landed on 20:39.
How else can the flight 9K5621 be referenced as?
This Cape Air flight can also be referenced as KAP5621, 9K 5621, KAP 5621.
How often is flight 9K5621 delayed?
On average, 10% of all 9K5621 flights are delayed. The average delay is 1 minute.
Can I get compensation for my delayed or cancelled 9K5621 flight or baggage issues?
If your 9K5621 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 9K5621 Flight Tracker above for more details.
Other flights departing from Nantucket ACK: 9K5381, 9K7521, 9K7581, TJ106
Other flights arriving at Boston BOS: B6394, AA1048, DL5746, 9K3321
All flights connecting Nantucket ACK to Boston BOS.
