Most have managed to turn operating profits over the past year as passenger traffic increased.
There is no shortage of depressing news from the group, from possible bankruptcies to lower passenger traffic.
However, the effect of higher non-fuel costs and lower passenger traffic was offset by higher passenger fares.
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Also, the slew of customer benefits introduced under the agreement should help Delta attract higher passenger traffic.
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Passenger traffic fell at Edinburgh Airport last month, dragged down by a drop in domestic traveller numbers.
From that, the Ambassador Bridge provides 40% of the overall truck traffic and 21% of the passenger traffic.
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Last year, only 4% of the airline's passenger traffic involved a frequent-flier award.
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But the likes of Istanbul, Dubai and Qatar saw their passenger traffic jump four and five-fold in that time.
Passenger traffic for the carrier declined in the third quarter, indicated by a 0.6% y-o-y decline in Revenue Passenger Miles.
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The carrier posted impressive growth in revenues and earnings in the first three quarters of 2012 on higher passenger traffic.
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Global passenger traffic has risen by 6%, faster than the long-term trend.
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American Airlines carries about 20 percent of the nation's air passenger traffic.
ANA, a Japanese airline, reported that passenger traffic between Tokyo and Hong Kong fell by a fifth after the disease was identified.
Passenger traffic in January fell to 61, 000 from 103, 000 in January 2010.
United and American control 80% of the gates at O'Hare and 89% of the passenger traffic, a cosily profitable arrangement for both.
The three Scottish airports owned by BAA saw a fall in passenger traffic to 1.88 million last month, down 5.4% on June 2008.
Boeing is betting big on China, expecting that increasing wealth and government spending on infrastructure will lead to continued growth in domestic passenger traffic.
As a result, passenger traffic increased around 9% y-o-y for the carrier in the fourth quarter, and will contribute towards revenue and earning growth.
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The first full week airlines operated after the attacks, passenger traffic had dropped off to 5 million passengers -- a decline of nearly 50 percent.
The airport said summer passenger traffic would be boosted by Ryanair's decision to add more flights to Mediterranean destinations Malaga, Faro and Alicante in July.
And while overall passenger traffic grew 5.4% in the first half of the year, it grew only 1.9% and 1.3% in July and August, respectively.
Airline stocks were reeling Monday, following a report from the International Air Transport Association reporting August passenger traffic slowed and offering a grim near-term forecast.
Fueled by Dubai's business, shopping and entertainment, passenger traffic through the Dubai airport is growing at 12% a year, versus an international average of 5%.
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As a result, passenger traffic for the carrier continued to rise.
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Local air passenger traffic declined 2.9% during January to November 2012--the most recent period for which comparable numbers are available--to 53.41 million, according to government data.
Passenger traffic is rare on the CPR these days, so rare that farmers and even trackmaintenance workers wave and cheer like the Railway Children as we pass.
Then, providing they can reduce space launch costs by a large factor, they may be able to exploit new business opportunities, including passenger traffic to outer space.
Global airline passenger traffic is on track for double-digit growth this year as a rebounding Chinese market leads broader expansion by carriers in Asia and the Middle East.
From 2003 to 2010, global airport passenger traffic increased 40%.
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