Southwest is adding two new non-stop holiday flights from the Pittsburgh International Airport.
- Southwest is gearing up for more people to fly out of Pittsburgh International Airport. It's adding two nonstop destinations from Pittsburgh. One will fly direct to Miami, the other to Austin, Texas. The only catch. These are just seasonal flights. So they'll fly on select days between the week before Thanksgiving and New Year's day weekend. Southwest is now the busiest carrier at Pittsburgh International.