Thai Airways International will scrap ultra-long-haul Airbus A340-500 services to the U.S. as part of a route revamp that could also see it yield ground in Australia to rapidly expanding Emirates. The economic failure of the polar services to Los Angeles and New York casts renewed doubt over the attractiveness of the special A340 and Boeing 777 versions that can fly farther than other commercial aircraft but with fewer seats and correspondingly higher operating costs.
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