With addition of more member airlines since then, oneworld's footprint at the airport has expanded again to include Terminal 4.
In Madrid, all on-line member airlines moved into the EUR6 billion Terminal 4 at the Spanish capital in February 2006.
They cover areas such as check-in, lounges, boarding experience, cabin crew, meals, seat comfort, punctuality, in-flight entertainment, aircraft cleanliness and baggage handling.
The three main airline alliances, including oneworld, now account for almost two-thirds of the total world airline capacity (ASKs) – and more than 75 per cent of air travel spend between the world's top 100 business cities.
All but one of the world's 20 biggest full-service network airlines are now signed up to one of the three global alliances.
There are a number of reasons for the emergence of global airline alliances: From Adelaide to Zurich, from Argentina to Zimbabwe, oneworld's network reaches out to the four corners of the earth, making it easier for travellers to reach more places.
Our member airlines together serve 150 plus countries with flights to more than a thousand destinations, many more than any individual airline can offer itself - with the oneworld network focused on the most important cities for international business travellers.
The alliance's website, offers a wealth of useful tools and information on key aspects of its service and products in many languages – and an interactive map showing every destination and route served by the alliance's member airlines and their code-share partners In December 2008, oneworld became the first alliance to sell any of its consumer fares on-line, through the booking tool for oneworld Explorer round-the-world fares.
Surf its pages, and you can check out: oneworld was the first of the global airline alliances to establish a central unit to drive the management of the alliance, its future growth and customer offerings.
oneworld is the market leader for alliance fares and sales products, pioneering some of the most innovative, flexible and attractively priced alliance fares available – and the first to sell any of them on-line.
There's something for anyone interested in making an extensive journey - from captains of industry on a trip right around the world to the student backpacker exploring one continent or more.
oneworld fares earn frequent flyer points and miles.
oneworld Explorer and the Circle fares are available for group travel.
oneworld members have combined ticket offices, check-in facilities and/or lounges at some 50 airports worldwide.