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Maestrow Naming Conventions

Maestrow uses IATA definitions for common airline terms. If your organization uses a different meaning for a term, you can specify your own definition in the User Profile.

If you are unsure of a term's IATA definition, ask Maestrow directly:

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What is the IATA definition of direct flight?

Common Terms​

TermIATA Definition
Direct FlightA flight where the flight number remains the same across more than one leg (a continuing flight). Often confused with non-stop.
Non-stopA flight that operates between two points with no intermediate stops.
RouteA city-pair combination representing an origin and destination.
HopA single flight leg.
MarketA passenger travel market between two city points.
O&D (OND)Origin and Destination — a passenger's full journey from start to final destination, regardless of connections.
True ONDThe actual end-to-end city-pair a passenger travels between.
Segment ONDAn individual flight segment within a broader O&D journey.
ConnectionsItineraries requiring a transfer between aircraft at an intermediate point.