The Japan Airlines app handles trip discovery, booking, seats, check-in, official gate and delay updates, JAL Mileage Bank, and onboard guidance for meals, entertainment, and Wi-Fi.
byAir adds one carrier-neutral timeline, independent flight-data context, cross-airline history and statistics, and early delay signals on eligible flights.
Japan Airlines controls its booking, airline documents, and JAL membership. byAir connects that segment with partners, separate reservations, and the rest of the journey.
Add byAir to your travel stackKeep JAL for official airline actions and onboard services; use byAir for independent awareness across the entire itinerary.
Japan Airlines remains the official source of truth for a JAL booking.
byAir adds independent context across every airline.
byAir Predict monitors eligible flights and separates its predicted departure time and likely reason from the airline’s official status.
Import from Gmail, Outlook, a calendar, a forwarded email, or Quick Scan—then follow the whole trip in one place.
byAir Predict metrics cover eligible, verified delays of 10 minutes or more. Availability and lead time vary by route and data coverage; these figures are global, not airline-specific.
Discover destinations, plan and book JAL travel, choose seats, check in, follow official gate or delay information, preview meal timing and inflight entertainment, access onboard Wi-Fi, and monitor mileage or status points.
Publicly listed app capabilities reviewed in July 2026. Airline functions remain subject to the carrier’s current app, route, airport, device, and itinerary eligibility.
Super easy and friendly app to track your flights, family, and friends. I use it when going to pick someone up at the airport too. Super useful, with lots of airport info.
This is the best traveling and tracking app I have ever used. So easy and convenient. Everything is synchronized in one place.
Excellent app for keeping track of my flights during an arctic freeze snowstorm. It kept me updated on delays and cancellations and helped keep my stress low.
Easy to add flights and track real-time delays before the airlines report them at the airport. So far it’s been great!
I find that sometimes airlines don’t notify you about flight changes, but byAir is trustworthy in sending me flight information.
This app transformed the way I travel. It gives me real-time flight updates, helps me navigate airports, and sends timely gate-change alerts.
Keep JAL for official actions. Add byAir for the complete journey.
