| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| May 21 | BOS | ACK | 13:15 | 14:11 |
En-Route
|
Track > |
| Apr 23 | BOS | ACK | 16:32 | 17:04 |
Landed
|
Track > |
| Dec 08 | BOS | ACK | 11:09 | 11:38 |
Landed
|
Track > |
| Dec 05 | BOS | ACK | 12:04 | 12:38 |
Landed
|
Track > |
| Dec 04 | BOS | ACK | 14:22 | 14:56 |
Landed
|
Track > |
| Oct 10 | BOS | ACK | 13:28 | 14:01 |
Landed
|
Track > |
| Oct 03 | BOS | ACK | 14:40 | 14:15 |
En-Route
|
Track > |
| Sep 26 | BOS | ACK | 14:20 | 14:15 |
En-Route
|
Track > |
| Sep 19 | BOS | ACK | 13:48 | 14:20 |
Landed
|
Track > |
| Sep 12 | BOS | ACK | 13:36 | 14:11 |
Landed
|
Track > |
Cape Air Flight 9K5431 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 9K5431 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 236 km/h / 147 mph.
What is the On-Time Performance (OTP) of Cape Air Flight 9K5431 Boston to Nantucket?
The Airportia On-Time Performance Rating for Cape Air Flight 9K5431 is 5/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest 9K5431 flight?
The latest flight took off on Thursday, May 21st, 2026 with the flight status being En-Route on 14:11.
How else can the flight 9K5431 be referenced as?
This Cape Air flight can also be referenced as KAP5431, 9K 5431, KAP 5431.
How often is flight 9K5431 delayed?
On average, 10% of all 9K5431 flights are delayed. The average delay is 5 minutes.
Can I get compensation for my delayed or cancelled 9K5431 flight or baggage issues?
If your 9K5431 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 9K5431 Flight Tracker above for more details.
Flight 9K5431 is code-shared by 1 airline using the flight number B65744
Other flights departing from Boston BOS: AA4794, DL1297, B61785, WN4623
Other flights arriving at Nantucket ACK: 9K5031, 9K5231, 9K5291, TJ82
All flights connecting Boston BOS to Nantucket ACK.
