Hub-and-Spoke
A network model in which passenger traffic is routed through central hub airports to connect travellers between many different origin and destination pairs.
The hub-and-spoke model is the dominant network architecture used by full-service airlines to maximise network reach without operating direct services between every possible city pair. Passengers from smaller origin points travel on shorter feeder flights to a central hub, where they connect onto mainline services to major destinations. The model enables airlines to aggregate sufficient passenger volume to operate efficient mainline services on routes that could not sustain direct connections from each spoke city.
Why it matters
The hub-and-spoke model shapes the routing options and connection logic of most major corporate travel programmes. It explains why travellers from smaller cities often travel through a hub rather than directly to their destination, and why connection quality at the hub — reliability, terminal layout, connection time requirements — matters as much as the quality of the mainline service. Understanding how hub-and-spoke networks work also helps programme managers anticipate disruption patterns: hub weather events have a disproportionate impact on the overall network.
How it works in practice
Airlines schedule their hub operations in coordinated banks of arrivals and departures — multiple inbound flights arriving within a window, followed by a departing wave — to maximise the number of viable connections. The hub's slot allocation, terminal configuration, and MCT standards determine how tight connections can be while remaining operationally reliable. Low-cost carriers, by contrast, typically operate point-to-point networks that avoid hub complexity but require travellers to self-connect if indirect routing is needed.
The takeaway
When booking travel through hub-and-spoke networks, connection time at the hub is the primary risk variable. Book with enough buffer to absorb the typical operational delay on the inbound leg — not just the airline's stated minimum connection time — and understand that any disruption at the hub itself can have cascading effects across the entire itinerary. On high-frequency routes, same-day rebooking options on alternative departures are usually available; on thin routes, they may not be.