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Delta to cancel order for 18 Boeing 787 Dreamliner aircraft

Delta planes line up at their gates while on the tarmac of Salt Lake City International Airport in Utah September 28, 2013. REUTERS/Lucas Jackson/File Photo

(Reuters) - Delta Air Lines Inc (DAL.N) said on Tuesday that in agreement with Boeing Co (BA.N) it would cancel an order for 18 787 Dreamliner aircraft, which it assumed as a part of its merger with Northwest Airlines.

The order is valued at more than $4 billion at current list prices. Delta, in its statement, did not disclose specific terms of the agreement. (http://bit.ly/2ibCr6f)

The airline, which acquired Northwest in 2008 for $2.6 billion in shares, said it would continue to take delivery of 737-900ER aircraft through 2019.

Delta declined to comment beyond its statement.

The cancellation comes as Delta and other top U.S. airlines seek to slow flight capacity growth and in some instances shrink existing service in response to falling airfares.

Airlines like Norwegian Air Shuttle ASA (NWC.OL) from outside the United States are adding flights that Delta says have exceeded passenger demand and hurt unit revenue.

Delta has 25 widebody aircraft from Airbus Group SE (AIR.PA), the A350, already slated for delivery that will add to its flight capacity this decade. Delta said earlier this year that it would defer the delivery of four A350s by a year or two from 2018 to make the schedule "more consistent with (the) expected pace of international market improvement."

(Reporting by Ahmed Farhatha in Bengaluru and Jeffrey Dastin in New York; Editing by Leslie Adler)