Airline PRASM Fell 3.9% Last Month; What's It Mean For Investors? By: Benzinga via Benzinga May 20, 2015 at 12:42 PM EDT Airline stocks fell Wednesday following news that passenger unit revenue (PRASM) fell 3.9 percent in April. JetBlue Airways ... Read More >> Related Stocks: Alaska Air Group American Airlines Gp Delta Air Lines Jetblue Airways Corp Southwest Airlines