9K 5423 Nantucket to Boston Flight Status

Cape Air Flight 9K5423 from Nantucket Memorial Airport ACK to Boston Logan International Airport BOS is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on September 28th, 2025.
Check the table below for 9K5423's most recent flight history:

9K 5423 Flight Status & Schedule

Date Departure Arrival Status
Sep 28 13:04 13:52
Landed
Track >
Sep 14 13:13 14:02
Landed Late
Track >

Cape Air 9K 5423 Nantucket to Boston Flight Information

Cape Air Flight 9K5423 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 9K5423 flight from Nantucket to Boston?

The average flight time from Nantucket to Boston is 48 minutes. The flight distance is 146 km / 91 miles and the average flight speed is 181 km/h / 112 mph.

What is the On-Time Performance (OTP) of Cape Air Flight 9K5423 Nantucket to Boston?

The Airportia On-Time Performance Rating for Cape Air Flight 9K5423 is 4.8/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight 9K5423 arriving at?

Flight 9K5423 arrives at Boston Logan International Airport (BOS) Terminal C.

When was the latest 9K5423 flight?

The latest flight took off on Sunday, September 28th, 2025 with the flight status being Landed on 13:52.

How else can the flight 9K5423 be referenced as?

This Cape Air flight can also be referenced as KAP5423, 9K 5423, KAP 5423.

How often is flight 9K5423 delayed?

On average, 100% of all 9K5423 flights are delayed. The average delay is 12 minutes.

Can I get compensation for my delayed or cancelled 9K5423 flight or baggage issues?

If your 9K5423 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 9K5423 Flight Tracker above for more details.

9K5423 and Nantucket ACK to Boston BOS Flights

Other flights departing from Nantucket ACK: 9K7541, 9K7521, TJ1023, 9K5422

Other flights arriving at Boston BOS: B62278, DL5738, WN2530, 9K5422

All flights connecting Nantucket ACK to Boston BOS.

9K5423 Cape Air Flight: Nantucket to Boston Route Map

9K5423 Cape Air Flight Map: Nantucket to Boston
Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.