Which premier league clubs has never been relegated from both the division one and premier league?

Newcastle United.

this answer is wrong it is arsenal football club.....there are the only team in England which has not been relagated

This is incorrect Arsenal are the only club not to be relegated since 1920 they iwere relegated from the Division One in 1913 and after finishing 5th in 1919 were somehow promoted to Division One.

Somehow? Sounds a little jealous. Just to add the year Arsenal were promoted (ie last time they were in any division below the premier/first division they replaced a certain Tottenham who were relegated and have never got over it lol