Southwest Amazon's search for its second headquarters, HQ2, has city governments competing to offer the most appealing pitch But some industries, including airlines, will also benefit from HQ2. A new report from Bank of American Merrill Lynch found that both legacy airlines like Delta and United, as well as smaller airlines like Southwest and JetBlue, could get a boost from Amazon's HQ2. Amazon's search for its second headquarters, HQ2, has city governments competing to offer the most appealing pitch.