The 28-year-old forward heads to the John Smith’s Stadium until Saturday 29 December and could make his debut for the Terriers against Watford in the npower Championship on Saturday.
Beckford joined City from Everton a year ago and has made 49 appearances for the Foxes, scoring 15 times.
He will be ineligible for selection when City travel to the John Smith’s Stadium to play Huddersfield in the npower Championship on Tuesday 2 October.