PlusPoints are United’s upgrade credits earned by frequent flyers under the MileagePlus program. They can be used to move from Economy to Premium or Business, depending on seat availability. Sometimes, passengers may wonder how many Plus Points for International Upgrade? The answer varies by route length, with long-hauls usually requiring more credits than regional flights. For more details about PlusPoints, one can contact the United customer service team or read the blog at the mentioned link by Airlines Group Travel.