Instead, some frequent flyers are making connections through European rivals such as Frankfurt, Charles de Gaulle in Paris and Schiphol in Amsterdam, with British-based business travellers living outside London saying they prefer to take short-haul flights from local airports to these foreign hubs to pick up long-haul flights, rather than struggle through Heathrow's crowded terminals and lounges.
However, when only regional markets are considered, significant dependence on foreign hubs appears in many destinations, particularly to Asia Pacific or the BRIC countries where above 80% of passengers use transfer flights.
While dependence on foreign hubs can be interpreted as a sign of vulnerability, there is also the argument that bypassing Heathrow allows regional airports to develop new markets and reduce the level of congestion in the London airport system.
Spain is certainly not the only foreign tech hub that depends on U.S. venture capital.
Consider fintech and the foundations on which this rapidly growing sector is built; London is the world's leading foreign exchange hub, handling $2.6 trillion per day, more than double that of New York City.
P.S. 7 is the foreign language hub of the district, Principal Edwin Rivera told HuffPost.
The plan is to create four foreign correspondent "hubs" in Washington, London, Jakarta and Beijing and have camera crews flying in and out of hot spots.
That number is inflated by London's role as a global financial hub where foreign banks cluster to do international business.
Pune and its environs have long been a hub of foreign investment, tracing their industrial roots to a munitions factory built in 1869 under British rule.
The city acted as the hub for foreign investors entering the Israeli economy in that decade and served as the crux of the real estate boom and of the proliferation of high-technology start-ups.
