When Do Japan Airlines (JAL) Miles Expire?

Japan Airlines (JAL) Mileage Bank miles expire 36 months from when you earned the miles. 

Specifically, JAL miles expire at 10 AM (EST) or 7 AM (PST) on the last day of the 36th month following the month of the transaction.

For example, if you earned or transferred 10,000 miles on April 1, 2021, your miles would expire on April 31, 2024. 

There is no way to extend the miles, similar to the other Japanese airline, All Nippon Airways.

Comparison of Mileage Expiration Policies

Below are the mileage expiration policies for the major points programs.

Airline Expiration
AEROMEXICO LOGO AeroMexico 24 months after inactivity
Air Canada Air Canada (Aeroplan) 18 months after inactivity
Air France Air France (Flying Blue) 24 months after inactivity
Alaska Airlines Alaska Airlines 24 months after inactivity
American Airlines American Airlines 18 months after inactivity
ANA ANA 36 months
Asiana Airlines Asiana Airlines 10 years
British Airways British Airways 36 months after inactivity
Delta Air Lines Delta Air Lines Never
Emirates logo Emirates 3 years
Etihad Etihad 24 months from inactivity
EVA Air EVA Air 36 months
Iberia logo Iberia 36 months after inactivity
Korean Air Korean Air 10 years
Lufthansa Lufthansa 36 months
Qantas Logo Qantas 18 months after inactivity
Qatar Airways logo Qatar Airways 36 months after inactivity
Singapore Airlines Singapore Airlines 36 months
Turkish Airlines logo Turkish Airlines 3 years
United Airlines logo United Airlines Never
Virgin Atlantic logo Virgin Atlantic Never