The hub-and-spoke network is an aviation routing model where an airline routes most of its traffic through central airports (hubs), with flights to other destinations radiating outwards (spokes).
What Is a Hub-and-Spoke Network?
A hub-and-spoke network is an airline routing model in which most flights connect through a small number of central airports, called hubs, rather than flying directly between every city pair. Passengers traveling between two smaller cities typically fly first to a hub and then transfer to a connecting flight to their final destination, with the routes forming a pattern resembling spokes radiating from a wheel's center.
U.S. carriers adopted the model rapidly after the Airline Deregulation Act of 1978 removed government control over routes and fares, allowing airlines to concentrate traffic and consolidate market power at chosen airports. The structure lets an airline serve far more city pairs than point-to-point flying would allow, using fewer aircraft and crews, and it remains the dominant network design for full-service network carriers worldwide.
How It Works
Airlines schedule inbound and outbound flights at a hub in tight arrival-and-departure clusters, called banks or complexes, so passengers can connect within a window of roughly 45 minutes to 2 hours. A single hub airport can support connections among 100 or more destinations without requiring direct service between each pair. Regional jets, typically 50 to 76 seats, and mainline narrowbodies feed smaller markets into the hub, while widebody aircraft handle high-demand or long-haul spokes. Hubs are often chosen for central geography, existing gate infrastructure, or strong local demand, and one carrier frequently controls a majority of gates and slots at its primary hub airport.
Where to Find It
The hub-and-spoke model underlies the networks of nearly all major full-service carriers globally, including U.S. legacy airlines, European flag carriers, and large Asian and Middle Eastern network carriers. Airports such as major U.S. metropolitan hubs, European gateway cities, and Gulf hub airports were built or expanded specifically to support this connecting traffic. By contrast, many low-cost carriers favor point-to-point routing instead, avoiding the connection banks and infrastructure costs that hub operations require.
Traveler Tip
When booking a connecting itinerary through a major hub, build in at least 60-90 minutes between flights, especially if the connection requires a terminal change or an international-to-domestic transfer. CEOFLIGHTS specialists can help find discounted fares — call (888) 851-6897.
