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Illustration of a Boeing 737 MAX 8 passenger airframe. Not a photo of N8721J.
Illustration of the Boeing 737 MAX 8 passenger airframe, not a photo of N8721J. Boeing 737-8 MAX 8 passenger-airframe exterior reference. Actual paint, installed equipment and modifications vary. This illustration does not establish a BBJ completion, cabin arrangement or this aircraft’s operating configuration.

N8721J 2018 Boeing 737-8 MAX 8

Serial number 42548. Registered to Southwest Airlines Co, Dallas, TX, US.

  • 2018Built

SPECIFICATIONS

Boeing 737-8 MAX 8 specs

Published figures for the type, from public sources. A given aircraft varies with its completion, weight and mods.

Model
Boeing 737-8 MAX 8
Year
2018
Serial number
42548
Engines
2 × CFM Intl LEAP-1B28 SER
Thrust
29,317 lbf each

THE AIRCRAFT’S LIFE

N8721J on the registry.

Registration events from FAA records, compiled October 2026. Maintenance, damage and component history live in the logbooks, not the registry.

  1. Registry record

    Airworthiness date on the current FAA record (standard category).

    FAA registry
  2. Southwest Airlines Co

    Certificate of registration issued as N8721J.

    FAA registry

FAA REGISTRATION

Registration details

Registration
N8721J
Status
Current as of October 2026
Certificate issued
Nov 6, 2018
Airworthiness date
Sep 20, 2018
Last FAA action
Jun 23, 2023
Registration expires
Nov 30, 2028
Mode S code (hex)
AC0048
Aircraft category
Airliner
Weight class
Over 20,000lbs

From FAA registry data as of October 2026. Check the FAA registry for the current record.

OWNERSHIP

Registered owner

Southwest Airlines Co

Corporation · Dallas, TX, US

ESTIMATED VALUE

What N8721J might be worth

Rough range$34M to $94M

A rough range for a 2018 airliner, with a middle of about $57M. From Radar's listing-based estimates for airliners of similar engine thrust and age. It is not an appraisal and knows nothing about N8721J itself: total time, engines, condition, equipment and the logbooks move the price of any one aircraft.

Open the aircraft value tool

SOURCES

Where this page comes from

Built from FAA registry records, manufacturer specifications, and public flight-tracking and market data, compiled October 2026. Values come from Radar’s aircraft value model. Owners and operators can ask for a correction or removal.

BUYING, SELLING OR FINANCING

What to check before a deal