Know what changed before it costs you time
byAir watches your flight day for the changes that actually matter: delays, gates, terminals, boarding, cancellations, baggage and inbound aircraft context. You get clear alerts early enough to decide what to do next.



byAir turns flight changes into alerts you can act on.

One flight, five data sources
No provider is strongest for every airline, airport or update type. byAir compares five global feeds and chooses the source that best fits the current flight context.
From scattered updates to one useful alert
Flight days are full of small changes. byAir separates the updates that affect your plans from the background noise.
Detect the change
byAir watches status, gates, terminals, boarding, cancellations, baggage and the aircraft scheduled to operate your flight.
Read the context
A small schedule shift and a gate change during boarding do not carry the same urgency. byAir considers timing and impact.
Send the next step
The alert tells you what changed and what to watch next, without exposing every raw provider update.
Spend less time guessing at the airport
Flight tracking should help you make better small decisions throughout the travel day, not just show another status screen.
Delay updates
Follow official departure and arrival time changes as they happen.
Gate and terminal changes
See gate, terminal and baggage updates where the airport and provider data supports them.
Inbound aircraft
See the latest available movement of the aircraft scheduled to operate your flight.
Flight status
Follow scheduled, boarding, en route, landed, cancelled and other status changes in one place.
Live surfaces
Use iOS Live Activities, Android Live Updates, widgets and push alerts during the flight day.
Smartwatch support
Check key flight updates from Apple Watch and Wear OS without pulling out your phone.
Family updates
Keep people waiting for you informed without manually forwarding every airport update.
Trip timeline
Keep flights, gates, baggage, documents and airport context organized around your trip.
See beyond the official departure time with byAir Predict
Get an independent departure prediction and likely reason directly in Flight Details.
Add flights from Gmail and Outlook
Auto-Scan Email can find booking confirmations, import upcoming trips, and rebuild past flight history before byAir starts tracking every change.
The proof behind the alerts
Historical source patterns help byAir weigh each update in the context of its airline, route, airport and update type.
Route-level patterns
byAir learns how timing and provider quality behave across repeated routes and connections.
Airport behavior
Some airports publish gates, terminals and operational changes earlier or more consistently than others.
Conflict resolution
When sources disagree, byAir can prefer the signal that has historically been more reliable in that context.
Common questions

Know what changed on your next flight
Get clear delay, gate, terminal and status alerts that help you decide what to do next.