Originally Posted by
Jet i son 1
Maximum certified number of seats is 145 (A319)
Maybe they were thin...

No. Max certified seats in an A319 is 156. Allegiant operates their A319s with 156. They have an additional overwing emergency exit (2 like an A320) which allows the additional passengers above 145.
"But Allegiant is going for a very specific type of A319. It is leasing all 10 of Cebu Pacific’s airplanes along with 9 that were operated by easyJet. What’s so special about these? They have two overwing exit doors on each side while just about all the others have one. Why the difference? Well, the additional exits mean they can jam in extra seats above and beyond 145. Allegiant will operate these airplanes with 156 seats."
From Airbus:
"In addition to the standard 124-seat configuration with a range of up to 3,740 nautical miles, Airbus offers an option with a seating capacity of up to 156 passengers – a version that is being ordered by an increasing number of low-cost airlines. "