DALLAS (AP) – Southwest Airlines is pushing back delivery of 30 Boeing 737s to save money and get a better return on its investment.

CEO Gary Kelly says Dallas-based Southwest got its first 737-800 from Boeing Co. in March. It had planned to get 20 more next year and 10 more in 2014.

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Kelly on Wednesday told shareholders that those deliveries will now be pushed back to 2017 and 2018. He says Southwest will save more than $1 billion through 2014 with the delays.

Southwest flies only 737s, and it had 558 at the end of March. Its AirTran unit flies 737s as well as 717s.

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Also, Southwest is doubling its $500 million share buyback program to $1 billion and raising its quarterly dividend to 1 cent per share.

Southwest’s repurchase program was approved last August.

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