Most of the increase came in the mid-80's, just as the hub airports were coming into their own.

It is also a hub airport for L3 and several other aviation companies.

Hub airports are usually very far away; so is good sushi.

Fog would be a key difficulty to overcome for a possible hub airport.

Thus, delays here, like at other hub airports, have a ripple effect throughout the nation.

It is a premier hub airport in the Middle East.

A new hub airport is desperately needed in London and the south-east.

From the hub airports, passengers change planes for their destinations.

At the hub airports, at least, the advice should be to expect very tight security.

Other cities that operate hub airports are finding themselves in similar jams.

Guam is the only hub airport that United has not rebranded.

This phenomenon has long troubled many members of Congress, especially those whose districts include these concentrated hub airports.

Piedmont's primary strategy was to avoid large hub airports and fly between small cities.

The other notorious problem is jammed airways at a steadily growing number of hub airports.

But industry representatives cited their own study as finding no relationship between fares and competition at hub airports.

While commercial aviation was suffering after Sept. 11, military flights from the hub airports were not, rising 4.5 percent.

A second part to this report, published in November last year, looks at the economic arguments (pdf) for a new hub airport.

But no major carrier has a tighter stranglehold on its hub airports than Northwest.

Some hub airport managers say they will add hundreds of workers or volunteers to the floors during the busiest times.

London doesn't need another hub airport - the capital already has more flights to the world's main business destinations than our European neighbours.

After airline deregulation in 1978 hub airports became prevalent.

But then, hardly anyone at that time understood the economic advantages of large route systems linking cities through hub airports.

In the mid-1980's, airlines started building big hub airports to which they funneled passengers from nearby cities.

Smaller hub airports were also sharply affected by cutbacks.

They operate at their hub airports largely at night.