It will be the Magpies' first league game at the Bees' new Brentford Community Stadium and the first opportunity for most United supporters to visit the venue, with last season's Carabao Cup quarter-final tie played behind closed doors due to Covid-19 restrictions.
Newcastle United were given an allocation of 1,700 - the stadium holds 17,250 - and tickets initially went on sale to season ticket holders with 180 or more away points at 10am on Thursday, 20th January.
The final remaining tickets sold on the afternoon of Monday, 31st January with the away points requirement at 130.
All juniors under the age of 13 must be accompanied by an adult.
Fans travelling by car can pre-book parking for the game here.
Supporters should only attend the fixture if they are free of any Covid-19 symptoms, and are also encouraged to maintain good hand hygiene and wear face coverings in crowded areas unless exempt.
Tickets for future games can be bought online at book.nufc.co.uk or by calling 0344 372 1892.