No matter what business model airlines choose, ancillary fees are here to stay: at least you don't always have to pay them.
Under the hub-and-spoke model, airlines realized that it didn't make sense to price flights based on their costs: after all, few passengers would want to spend more for longer flights, with layovers, than on nonstop options.
Priceline.com, which earned its reputation with the name-your-own-price model for airline tickets, will soon try to interest you in bidding for a new commodity: cheap phone calls.
Fine china, silver, impressive wine lists, even an onboard chef: this deluxe mode of travel later became a model for airlines with international flights.
IBM is working with an American limousine-fleet company to introduce the same mathematical models the airline industry uses to route aircraft.
JetBlue builds on the successful models of airline mavericks, notably People Express, a low-cost travel pioneer of the 1980's that is no longer in operation, and Southwest Airlines, from which it has borrowed many features.
The rich data set allows the estimation of discrete choice models of airline itinerary choice.
Revenue models in airline planning optimisation only roughly approximate the passenger decision process.
In theory, this model allows airlines to provide discounts only to those flexible leisure travelers, while selling unsold seats and protecting existing yield from business travelers.
There are three basic models: some airlines provide it for free (such as Virgin), others for a fee (Ryanair) and others allow you to bring your own by prior arrangement (Easyjet).
