The official site reports:
Next stop is Macau Stadium in China where Shenzhen FC will be the opposition on 23 July. The final destination will be Kuala Lumpur's Bukit Jalil Stadium for a match against a Malaysian XI on 27 July.
United chief executive David Gill says the Reds are relishing this summer's trip.
"The Club has a large and very loyal fanbase in the region and the players always enjoy their trips to see them and play in front of their passionate support," says Gill.
"Everyone is looking forward to it."