The girl group were due to release new single 'Wings' in the UK on July 22. However, a listing for the song on their official store now says it will be available from August 19.
A physical edition of 'Wings' will follow the next day on August 20, while their debut album has been handed an expected release date of September 3 by online store Amazon.
If Little Mix's first studio album is released in September, it would mark the first time since 2007 that an X Factor winner hasn't released their record following a performance on the first X Factor live show in October.
The quartet revealed that they co-wrote their new single 'Wings' and have contributed to the rest of their album.
Little Mix recently signed a joint deal with toymaker Vivid and music merchandiser Bravado to release a range of dolls in time for Christmas.
Watch Little Mix perform 'E.T.' live on The X Factor below: