| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jun 15 | BOS | ACK | 09:30 | 10:25 |
Unknown
|
Track > |
| Jun 01 | BOS | ACK | 12:14 | 12:54 |
En-Route
|
Track > |
| May 29 | BOS | ACK | 14:40 | 15:12 |
Landed
|
Track > |
| May 28 | BOS | ACK | 13:35 | 14:30 |
Cancelled
|
Track > |
| Claim > | ||||||
| May 23 | BOS | ACK | 13:15 | 14:10 |
Cancelled
|
Track > |
| May 22 | BOS | ACK | 18:17 | 18:49 |
En-Route
|
Track > |
| May 21 | BOS | ACK | 16:20 | 16:53 |
En-Route
|
Track > |
| Apr 24 | BOS | ACK | 12:13 | 12:43 |
Landed
|
Track > |
| Apr 23 | BOS | ACK | 16:45 | 17:40 |
Cancelled
|
Track > |
| Dec 07 | BOS | ACK | 10:04 | 10:38 |
Landed Late
|
Track > |
Cape Air Flight 9K5251 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 9K5251 flight from Boston to Nantucket?
The average flight time from Boston to Nantucket is 32 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 9K5251 Boston to Nantucket?
The Airportia On-Time Performance Rating for Cape Air Flight 9K5251 is 5/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest 9K5251 flight?
The latest flight took off on Monday, June 15th, 2026 with the flight status being Unknown on 10:25.
How else can the flight 9K5251 be referenced as?
This Cape Air flight can also be referenced as KAP5251, 9K 5251, KAP 5251.
How often is flight 9K5251 delayed?
On average, 10% of all 9K5251 flights are delayed. The average delay is 29 minutes.
Can I get compensation for my delayed or cancelled 9K5251 flight or baggage issues?
If your 9K5251 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 9K5251 Flight Tracker above for more details.
Flight 9K5251 is code-shared by 1 airline using the flight number B65133
Other flights departing from Boston BOS: B68409, G4233, UA3027, AA104
Other flights arriving at Nantucket ACK: TJ434, 9K1061, TJ23, 9K952
All flights connecting Boston BOS to Nantucket ACK.
