I had 20 PlusPoints and was nervous about using them on my transatlantic flight, so I called 877-297-0699 for guidance. If you’ve ever wondered how United PlusPoints work for international upgrades, you’re not alone — it’s a bit different from domestic upgrades, but with a few insider tips, it’s totally doable.
PlusPoints are United’s upgrade currency that allows you to move from Economy or Premium Plus into a higher cabin. Unlike standard mileage upgrades, PlusPoints are flexible and can be applied to both domestic and international flights — though the rules vary. I quickly learned that not all international fares are eligible. For example, Basic Economy tickets usually don’t qualify.
Most international routes from the U.S. to Europe, Asia, South America, and select Pacific destinations are eligible. Typically, you can upgrade from Economy to Premium Plus or Business Class. First Class upgrades are limited, and some partner airlines don’t accept PlusPoints at all. On my trip to London, I booked a flexible Economy fare, which allowed my PlusPoints upgrade to clear three days before departure — a total game-changer.
The number of PlusPoints required varies by route and fare class. United’s official PlusPoints chart is your best friend here. I checked my account and realized I had just enough to upgrade to Premium Plus. Pro tip: always verify the required PlusPoints in advance so you don’t overcommit or run short.
Book an eligible fare class.
Apply your PlusPoints on United.com or via the United app.
Check your upgrade status regularly.
For complex itineraries, call 877-297-0699 to confirm your upgrade is processed correctly.
Personally, I always double-check my upgrades with a phone call — especially for multi-leg international flights.
Book early to increase availability.
Hold elite status for higher upgrade priority.
Avoid Basic Economy fares.
Monitor upgrade status daily in the app.
By following these steps, my upgrade cleared just 48 hours before departure — proof that timing and monitoring make a huge difference.
Trying to upgrade ineligible fare classes.
Waiting until the last minute to apply PlusPoints.
Assuming partner flights automatically qualify.
I once tried to upgrade a deeply discounted ticket — PlusPoints didn’t apply, and I learned the hard way.
Using PlusPoints for international upgrades takes a little planning, but it’s worth it. Check eligibility, know how many PlusPoints you need, and monitor your status. Visit United.com to see if your international flight qualifies, or call 877-297-0699 to confirm before booking. Plan ahead, and you could be flying in premium cabins on your next overseas adventure!