How does this reconcile with what DALPA has been spouting about the proposed block hour JV agreement found in TA2015?
"Yet Delta Air Lines (NYSE: DAL) is expanding its usage of 757s for international flights -- to some extent, at the 767's expense. What gives?
In Delta's most recent quarterly SEC filing, the airline revealed that it will purchase five used 757s later this year. This was an interesting move...
...not all 757s are alike. Some are optimized for shorter routes, while others are capable of long-haul flights of up to 4,000 miles. Moreover, the used 757s that Delta is buying are some of the last to be built, and are nearly two decades younger than many of the 757s that Delta is retiring.
In other words, Delta is buying 757s that can stick around for a while and that are capable of long-haul international flights. Indeed, there's no substitute today for the 757 on 3,000-4,000 mile routes that don't have enough demand for a larger widebody plane.
In April, Delta began a new route from Philadelphia to London that took advantage of the 757's unique capabilities. Joint venture partner Virgin Atlantic has a hub in London, but it doesn't have a small enough plane to fly economically to Philadelphia, a US Airways stronghold."
United Continental Zigs While Delta Air Lines Zags (DAL,UAL)