(Image source: thepointguys.com) Shares of JetBlue Airways Corporation (NASDAQ:JBLU) are slightly trading higher this morning on an upgrade from Goldman Sachs. The domestic airline provider was upgraded to neutral from sell with a price of $10.50 a share, which was $2.30 above the prior target level. Goldman cited improving fundaments in the domestic airline industry such as stronger pricing momentum as reasons for the upgrade. In addition, the approaching summer travel season will lift JetBlue out of its current slump.