Informational Guide to Boston Logan Airport (BOS) - NON OFFICIAL

9K5121 Cape Air - Flight Status

Below, you can find details about Cape Air flight 9K5121, which currently operates between the airports of Nantucket - Nantucket Memorial Airport (Airport Code ACK) and Boston - Boston Logan International Airport (Airport Code BOS).
This flight data pertains specifically to the flight's details for Thursday, May 07, 2026.

9K5121 On Time performance:
n/a
It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions.

Flight Status

9K5121 Cape Air from Nantucket

Landed - On-time
Flight Status for Thursday May 07, 2026
This flight is also scheduled for Today (May 08, 2026). See it here

Airline information

Cape Air
Cape Air
Equipment: Cessna (Light aircraft)

Departure

Nantucket (ACK)
May 07, 2026
Nantucket Memorial Airport
Departed at:
08:15 am
Terminal:
-
Gate:
-
Scheduled Departure Time: 08:13 am

Arrival

Boston (BOS)
May 07, 2026
Boston Logan International Airport
Arrived at:
09:05 am
Terminal:
C
Gate:
C27
Scheduled Arrival Time: 09:13 am
Baggage: 9
Disclaimer
The information displayed on this website is gathered from third-party providers with a wide reputation on the sector, which in turn obtain the information from the airlines. This data is provided only for informative purposes. www.boston-airport.com assumes no responsibility for loss or damage as a result of relying on information posted here. Please contact your airline to verify flight status.

Codeshare Flights

This flight is shared with other airlines, this means that these other flights are the same:

- B65726 - JetBlue

Additional Information

Which is the frequency of flight 9K5121?
The flight 9K5121 is scheduled to flight on Monday, Tuesday, Wednesday, Thursday, Friday, Sunday on a weekly basis.

Which is the distance of flight 9K5121?
The distance between the two airports is 91 miles.

Are the departure airport and arrival airport at the same Time Zone?
Yes, both airports are in the same timezone.

Alternative Flights

The following airline serve the same route between Nantucket and Boston:
Cape Air - Flight Number: 9K5001. (On Time performance: 83 - Average Delay: 16 minutes)

Punctuality and delays

It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions.

Delays analyzed by Week: It is not possible to calculate the On-Time Performance for this flight accurately by weekday due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Delays analyzed by Month: We have gathered available data from last twelve closed months, spanning from May 14, 2025 to April 27, 2026. Next, you can observe the results broken down by month: number of flights analyzed, on-time performance per month, and average delay per month.

Note: We have excluded some months from the graph, since the quantity and quality of the data is not representative enough.

Last Past Flights 9K5121

Date
Departure
Arrival
Duration
Aircraft
Status
Thursday
07 May
08:15 am
Nantucket (ACK)
09:05 am
Boston (BOS)
00h 50min
Cessna (Light
Cessna (Light
Landed - On-time
Wednesday
06 May
08:08 am
Nantucket (ACK)
09:03 am
Boston (BOS)
00h 55min
Cessna (Light
Cessna (Light
Landed - On-time
Tuesday
05 May
08:32 am
Nantucket (ACK)
09:10 am
Boston (BOS)
00h 38min
Cessna (Light
Cessna (Light
Landed - On-time
Monday
04 May
01:55 pm
Nantucket (ACK)
02:50 pm
Boston (BOS)
00h 55min
Cessna (Light
Cessna (Light
Landed - On-time
Friday
01 May
11:20 am
Nantucket (ACK)
12:05 pm
Boston (BOS)
00h 45min
Cessna (Light
Cessna (Light
Landed - On-time
Monday
27 April
11:18 am
Nantucket (ACK)
12:07 pm
Boston (BOS)
00h 49min
Cessna (Light
Cessna (Light
Landed - On-time
Sunday
26 April
11:40 am
Nantucket (ACK)
12:35 pm
Boston (BOS)
00h 55min
Tecnam P2012 T
Tecnam P2012 T
Landed - On-time