| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jul 07 | BOS | ACK | 16:20 | 15:40 |
En-Route
|
Track > |
| May 29 | BOS | ACK | 11:49 | 12:27 |
Landed
|
Track > |
| May 28 | BOS | ACK | 10:20 | 11:15 |
Cancelled
|
Track > |
| Claim > | ||||||
| May 22 | BOS | ACK | 14:59 | 15:33 |
Landed
|
Track > |
| May 22 | BOS | ACK | 14:29 | 15:24 |
En-Route
|
Track > |
| May 21 | BOS | ACK | 12:35 | 13:30 |
Cancelled
|
Track > |
| Apr 24 | BOS | ACK | 14:11 | 14:42 |
Landed
|
Track > |
| Apr 23 | BOS | ACK | 14:47 | 15:22 |
Delayed
|
Track > |
| Dec 08 | BOS | ACK | 14:10 | 14:42 |
Landed
|
Track > |
| Dec 07 | BOS | ACK | 13:09 | 13:48 |
En-Route
|
Track > |
Cape Air Flight 9K5231 connects Boston, United States to Nantucket, United States, taking off from Boston Logan International Airport BOS and landing at Nantucket Memorial Airport ACK.
How long is the 9K5231 flight from Boston to Nantucket?
The average flight time from Boston to Nantucket is 34 minutes. The flight distance is 146 km / 91 miles and the average flight speed is 216 km/h / 134 mph.
What is the On-Time Performance (OTP) of Cape Air Flight 9K5231 Boston to Nantucket?
The Airportia On-Time Performance Rating for Cape Air Flight 9K5231 is 4.8/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest 9K5231 flight?
The latest flight took off on Tuesday, July 7th, 2026 with the flight status being En-Route on 15:40.
How else can the flight 9K5231 be referenced as?
This Cape Air flight can also be referenced as KAP5231, 9K 5231, KAP 5231.
How often is flight 9K5231 delayed?
On average, 30% of all 9K5231 flights are delayed. The average delay is 31 minutes.
Can I get compensation for my delayed or cancelled 9K5231 flight or baggage issues?
If your 9K5231 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 9K5231 Flight Tracker above for more details.
Other flights departing from Boston BOS: AC8543, B6317, 9K2051, B6897
Other flights arriving at Nantucket ACK: DL5767, 9K7771, DL5804, DL5804
All flights connecting Boston BOS to Nantucket ACK.
