This move breaks with tradition in which the White House flags are generally flown at half-mast until the burial of a lawmaker and other notable personalities, and is done so in order to honor such figures.
The flag was lowered to half staff following McCain's death on Saturday, and President Donald Trump made a statement on Twitter.
Just after midnight on Sunday night, the flag flying above the White House was hoisted back to full staff.
Pres Trump did not issue proclamation on the death of @SenJohnMcCain, which usually calls for flags to remain at half-staff through the day of interment, which is Sunday at the @NavalAcademy. But presidents have the power to issue proclamations extending that period.
Travers also noted that flags at the Washington Monument remain lowered. The career military official, Prisoner of War and Senator of Arizona, passed away due to complications from brain cancer at the age of 81.
"@CBSThismorning reached out to the White House to learn about its plans for the flag today, but it declined to comment", the tweet read.
Muslims congregate for Eid prayers as Zilhaj concludes
According to him, the meat or blood of the sacrificed ram can not reach but Allah is only concern about the piety of a believer. Palestinians pray on the first day of Eid al-Adha at the Al Aqsa Mosque in Jerusalem's old city, Tuesday, Aug. 21, 2018.
During his involvement with a select committee on POW/MIA affairs, Mr McCain pressed for normalisation of diplomatic relations with Vietnam, something unpopular in the Republican party.
The Suns also sent out their condolences to McCain's family along with a genuine message on how the organization feels about the late senator's contributions to the nation. "Our hearts and prayers are with you!"
He will be buried in a private service at the US Naval Academy at Annapolis, where his service to his country began six decades ago, at a cemetery overlooking Maryland's Severn River.
Former presidents George W Bush and Barack Obama are expected to speak at a service at Washington National Cathedral on Saturday.
Marc Short, Trump's former legislative director, said the president faced "a little bit of a situation of a Catch 22" when deciding how to respond to McCain's death.
It will conclude almost a week of events honouring the man, whose body will lie in state on Wednesday in the Arizona State Capitol and on Friday in the Capitol Rotunda, Washington DC, with a formal ceremony and time for the public to pay respects.