rabies no older than 6 months and a health certificate no older than 10 days. Call the airline, they will give you details.
The prohibition on pit bull has been lifted. Due to size and weight your dog will need to travel in the belly of the plane and arrive early in the morning before ther temperature goes too high. You need coordinate with the airline.
Some airlines have slyly different requirements, everything needs to be coordinated correctly or you will miss the plane and your dog will arrive with you the next day or the dog may not be able to travel, it is complex, do not try to go for a cheap flight, do it all directly with the airline.