The Marvel superhero movie by Disney was not being screened in the country as Disney's regional office did not give Pakistan the rights to run it.
Fans across the country were disappointed last month when Captain Marvel, MCU’s first film to feature a female lead was not released, so there was great relief when Atrium Cinemas announced on Twitter that Avengers Endgame will be released on April 26.
Meanwhile, in the US advance ticket sales for the movie surpassed the last two Star Wars films, and some appeared on resale platforms with asking prices of up to $500 each.
Fans took to social media to complain about websites crashing, error codes and long waits to get their tickets.
"Took me 5 hours to get #AvengersEndgame tickets," tweeted Meghan Keatley.
"It's been hours and they paused the site," a fan called Bakuhoe wrote on Twitter. Five hours later Bakuhoe tweeted, "It was fun waiting with y'all, hope you all get tickets and we can suffer at the diabolical hands of Marvel together."