byAir vs. Cathay Pacific

The Cathay Pacific app handles booking management, check-in, boarding passes, seats, baggage allowance, Cathay membership, official departure updates, and connection details.

byAir adds one timeline across carriers, independent flight-data context, personal history and statistics, and early delay signals on eligible flights.

One official app. One independent trip view.

Cathay Pacific controls its booking, membership, and travel documents. byAir connects that flight with partners, separate reservations, and independent trip context.

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Availability depends on platform and plan. Features requiring byAir Pro are marked.

Features
byAir
Cathay Pacific
Official airline actions
Book or manage a Cathay Pacific itinerary
Airline link
Official check-in and mobile boarding pass
Link & storage
Seat selection and trip extras
Cathay membership account
Cathay
Official checked-bag status in the app
Allowance details
Tracking and context
Real-time official flight status and gate
Any-airline trip timeline
Cathay bookings
Multiple flight-data providers
Five providers
Official airline view
Inbound-aircraft context
Airport delay index
Trip tools
Gmail and Outlook auto-import

Publicly listed app capabilities reviewed in July 2026. Airline functions remain subject to the carrier’s current app, route, airport, device, and itinerary eligibility.

Cathay Pacific

  • Book and manage a Cathay Pacific itinerary
  • Check in, choose a seat, and open a boarding pass
  • Review baggage allowance and official departure details

byAir

  • See every carrier in one trip timeline
  • Check inbound-aircraft and airport-delay context
  • Get an early byAir Predict signal on eligible flights

Keep Cathay booking and connection details together

Book and manage Cathay Pacific travel, check in, choose a seat, keep the mobile boarding pass, review baggage allowance, use Cathay membership, and follow official departure and connection information.

Cathay Pacific app manage booking screen
Official airline app · Cathay Pacific

Frequently Asked Questions

byAir app icon

See the whole trip, not only the airline segment

Keep Cathay Pacific for the booking. Add byAir for every connection around it.