PlusPoints can be used to upgrade flights operated by United Airlines, United Express, All Nippon Airways (ANA), Lufthansa, and Copa Airlines. All flights operated by partner airlines will cost 40 PlusPoints while the cost of upgrades on United-operated flights will vary from 10 to 80 PlusPoints. Complimentary Premier Upgrades ($225): You’ll also be eligible for complimentary upgrades to first class as a Premier Silver traveler, and this applies to domestic flights along with flights to Hawaii (from the West Coast only), Canada, Mexico, the Caribbean and Central America. Unfortunately, these typically won’t clear until the day of departure, and you’ll be prioritized behind all other elite members. United’s upgrade process is convoluted, and unfortunately, there are many reports of discrepancies between the published policies and the reality at the gate. However, at least having a general idea of where you fall on the upgrade list can help you avoid a nasty surprise when you arrive at the airport.