Donald Trump will board his private jet just one more time before he is forced to bid it farewell ahead of being given Air Force One.

The president-elect was seen getting off Trump Force One at Ronald Reagan Washington National Airport in DC on Wednesday night.

And he didn't stay long, with his motorcade spotted heading back to the airport shortly after 9:15pm. After the final flight aboard his ostentatious jet on Wednesday, he will travel on a military plane on Thursday before he is sworn in on Friday.

After that, he will begin using the presidential plane.

Donald Trump is seen getting off 'Trump Force One' in Washington DC on Wednesday night. He will fly on the plane just one more time before he has to give it up after being sworn in

The president-elect's plane is seen touching down at the Ronald Reagan Airport in Washington. Trump will return to New York aboard the plane Wednesday night - his last flight on it before becoming president and taking Air Force One

Officials had earlier said it would be 'nearly functionally impossible' for Trump not to use 'AF1'.

While he was in Washington on Wednesday night, the president-elect attended two dinners, the first of which was packed with deep-pocket donors wanting to honor Mike Pence.

People who ponied up between $500,000 and $1 million were able to attend the event at the National Portrait Gallery, according to Politico.

Reporters were not allowed inside, but the New York Times was able to obtain quotes from Trump's speech to those at the dinner.

He started off by credited Pence for bringing around those who were unsure about the Trump ticket, saying: 'They all liked Mike. They were a little bit, you know, a little concerned with me.'

He also took aim at a number of his Republican foes, including Ted Cruz and Scott Walker.

He said Cruz is a, 'smart guy, he was a little late to the plate, but that’s OK', before describing Walker as 'nasty'.

The president-elect then took a shot at the 'Never Trump' movement - a group of Republicans who were committed to keeping him from the White House.

Mike Pence posted this picture of himself and the president-elect on stage at a dinner in DC on Wednesday

Mike Pence is pictured at his dinner on Wednesday night speaking to the donors in attendance

'They’re really right now on a respirator; they’re pretty much gone,' he said, according to the Times.

In the winding speech, he then 'thanked' African American voters who did not go to the polls on election day - something he has done previously.

'Because they liked me, or they liked me enough that they just said, 'No reason,"' he said.

The PEOTUS also shed some light on his immigration policy, according to the Times, by saying he wants the system to be: 'at least a certain degree to be merit-based'.

'We’re working on the border. We want people to come into our country, but we want them to come in legally,' he said.

Donald Trump is in Washington DC on Wednesday night to attend two donor dinners. He is pictured arriving aboard the jet at Reagan National Airport

Since landing in Washington, Trump has posted this picture of himself with Lee and Kimberly Greenwood. Lee Greenwood is performing at the inauguration

US President-elect Donald Trump's plane prepares to depart Laguardia Airport in New York on January 18

'We want people to come into our country who are going to love us and respect us.'

Trump posed for pictures with some of the guests, including country singer Lee Greenwood and his wife, Kimberly. Greenwood will perform at the inauguration on Friday.

The second dinner of the night was advertised as an 'intimate policy discussion' to be held at the Library of Congress.

Tickets to the event were included in a presidential inauguration package that sold for between $100,000 and $250,000.

It is not known which cabinet officials are attending the dinner.

Trump was there for just 40 minutes, and did not stay for a meal. On the way back to the airport he made a surprise visit to his DC hotel, where he was met by a cheering crowd.

Earlier on Wednesday Donald Trump was seen boarding his jet for one of the second last time before he becomes president

The motorcade carrying US President-elect Donald Trump drives to LaGuardia Airport in New York on January 18