The Premiership champions are in Riyadh to provide the opposition for Saudi legend Sami Al Jaber's testimonial game and will face Al Hilal in front of 65,000 fans in the King Fahd Stadium on Monday.
However the club have been subjected to accusations of greed, with an estimated one million pounds being paid into the Old Trafford coffers by the Saudis to entice United to the Middle East.
United's global popularity ensures they are a huge draw for local supporters wherever the play, and the club have stressed their determination in the past to visit their far-flung fan-base and play 'in the flesh'.
But with an FA Cup tie against Spurs at Old Trafford to play next Sunday, manager Ferguson insisted that the Saudi trip will boost their on-field preparations first and foremost.
"We will have two good training sessions out here on Wednesday and Thursday in good, warm conditions, so that will definitely be an advantage to us before we go back to Manchester and we have made a decision to come out here which we hope will prove right," said Ferguson.
"We have gone away before in mid-season and it has worked well for us. We went to Dubai a couple of years ago and we won the FA Cup at the end of that season.
"Obviously, if we go back home and get a bad result, then people will say that we shouldn't have come here, but I'm sure that being here won't do us any harm at all.
"We are delighted to be here and I just hope that the sun gets even warmer over the next few days! We get back to Manchester on Thursday, so that will give us three days to prepare for the Spurs on the Sunday.
"It's a terrific tie for us and hopefully this trip will help us."
United have flown a full-strength squad out to the Saudi capital, with only the injured trio of Gary Neville, Paul Scholes and Louis Saha left behind to undergo treatment at Old Trafford.