+1-877-658-0437: To check in for a Japan Airlines flight, visit their website or mobile app 24 hours before your departure to complete online check-in. You'll need your booking reference and personal details. Alternatively, you can check in at the airport by visiting a check-in counter or using a self-service kiosk. For any assistance, feel free to contact Japan Airlines customer service.
https://www.lowfaresfinder.com/blogs/japan-airlines-check-in
