England will host Tonga at Twickenham in November after finalising their schedule for the Quilter Internationals.
The visit of Tonga on November 21 will mark the third of four matches Eddie Jones' side are due to contest this autumn.
England open their campaign against New Zealand on November 7 before facing Argentina a week later.
They will conclude their run of Test fixtures against Australia on November 28.
England beat Tonga 35-3 at last year's World Cup. The match in November will mark just the fourth fixture between the two nations.
England's autumn international fixtures in November 2020
England v New Zealand - Saturday 7th November @ 5:30pm
England v Argentina - Saturday 14th November @ 8pm
England v Tonga - Saturday 21st November @ 3:15pm
England v Australia - Saturday 28th November @ 3:15pm