NEW YORK, NY February 18, 2007 —Stranded JetBlue passengers are out of luck again today. The Queens-based airline has canceled all flights in and out of 11 of its airports, including Pittsburgh, Nashville, Houston, Texas, and Portland, Maine.

The low-cost carrier is still reeling from a Valentine's Day snowstorm that led to hundreds of canceled and delayed flights. JetBlue canceled a quarter of its flights this weekend in an effort to get back on schedule.

Additional cancellations are still possible. The airline is advising travelers to check the status of their flights before heading to the airport.