The film, which revolves around the evacuation of Indians from Kuwait during the 1990 Iraq-Kuwait war, released on January 22, and on the opening day earned over Rs.12 crore at the ticket window.
"I don't know how to thank you all for every ounce of all your love and support for #Airlift, feeling extremely humbled," Akshay tweeted on Sunday.
The film tells the story of an unsung hero who provided help in the evacuation of Kuwait-based Indians during the Iraq-Kuwait war.
"Airlift" also stars Nimrat Kaur, Feryna Wazheir and Purab Kohli.
Nimrat also followed the star in thanking the movie-goers, and posted: "So grateful to each of you the love. Feel so fortunate to have been associated with this incredible story. #Airlift."