D
Delta Air Lines also built up a hub operation at DFW , which occupied most of Terminal 4E through the 1990s . The Delta hub peaked around 1991 , when Delta had a 35 % market share at DFW ; its share was halved by 2004 , after many of its mainline routes were downgraded to more frequent regional jet service in 2003 .
Illustration of plans for the airport
Delta closed its DFW hub in 2004 in a restructuring of the airline to avoid bankruptcy , cutting its DFW operation to only 21 flights a day from over 250 and redeploying aircraft to hubs in Cincinnati , Atlanta and Salt Lake City . Prior to the closure , Delta had a 17.3 % market share at DFW . After the closing of Delta ' s hub , DFW offered incentives to Southwest Airlines to relocate its service to DFW from Love Field , but Southwest , as in the past , chose to stay at Love Field . DFW has been a hub for Braniff International Airways , Braniff 2 , Delta Air Lines , Frontier Airlines and Texas International Airlines . In 1989 the airport authority announced plans to rebuild the existing terminals and add two runways . After an environmental impact study was released the following year , the cities of Irving , Euless and Grapevine sued the airport over its extension plans , a battle that was finally decided ( in favor of the airport ) by the US Supreme Court in 1994 . The seventh runway opened in 1996 . The four primary north – south runways ( those closest to the terminals ) were all lengthened from 11,388 feet ( 3,471 m ) to their present length of 13,400 feet ( 4,084 m ). The first , 17R / 35L , was extended in 1996 ( at the same time the new runway was constructed ) and the other three ( 17C / 35C , 18L / 36R and 18R / 36L ) were extended in 2005 . DFW is now the only airport in the world with 4 serviceable paved runways longer than 4,000 metres ( 13,123 ft ). Terminal D , built for international flights , and DFW Skylink , a modern bidirectional people mover system , opened in 2005 .
KDFW Dallas
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