The English international recently signed a new deal with Arsenal to keep him at the club for four more years, and wanted to stay and fight for his place at the Emirates.
However, with the arrival of Sokratis and Stephan Lichtsteiner in defence this summer, it seems as though Unai Emery did not think that Chambers would get many minutes on the pitch.
The defender enjoyed a string of games in the first season after he arrived in north London from Southampton, but since then has made just 24 appearances in the league.
He spent a successful loan spell at Middlesbrough in 2016-17 where he featured regularly, and it seems as though Emery is hoping he will replicate that for Premier League new-boys Fulham.
"We all believe this loan at Fulham will be an important part of his development and wish him a successful season." the Arsenal coach said of the deal.