WASHINGTON (MarketWatch) -- US Airways LCC +3.13% , Hawaiian Holdings HA +11.34% and American Airlines parent AMR Corp. AMR +2.62% were upgraded Tuesday at BofA Merrill Lynch. "Despite concerns that recent stock market declines will induce a recession, airline bookings in the past two months have improved from the prior two months," the bank said in a note to clients. Furthermore, declining oil prices due to weaker economic growth and a resolution to the Libyan crisis could shield airline profits from decelerating demand. Merrill Lynch raised US Airways and Hawaiian Holdings to buy from neutral and upped AMR to neutral from underperform. The bank added Delta Air Lines DAL +1.66% and United Continental UAL -3.01% remain their "top two picks."