Japan Airlines has Wi-Fi. It is free at home; an hour in Economy abroad.

Does Japan Airlines have Wi-Fi?

Yes, Wi-Fi

Free at home; an hour in Economy abroad

Sources

• JAL's Free inflight Wi-Fi Service (International Flights),Japan Airlines·1 Nov 2026
• JAL to expand free onboard Wi-Fi service to international flights,Japan Aviation Hub·1 Oct 2024