The multi-million dollar investment will upgrade facilities and support more than 2,600 jobs.
The enhanced security measures will be announced in the coming days for certain overseas airports.
The number is approximately 2 percent more than in 2013.
Many cancellations were due to the bad weather.
The weekly non-stop flights will be offered during the summer.
The new engines will be seen in Pennsylvania by the end of 2015.
The Thanksgiving holiday is one of the busiest travel weekends of the year.
Bomb technicians clear out more bottles of dry ice from major international airport.