The last time I flew United, I ended up calling 877-297-0699 while pacing around my living room, trying to decide whether I should finally pay for an upgrade or tough it out in economy. If you’ve ever stared at United’s upgrade options and wondered which button to click—or whether it’s even worth it—you’re definitely not alone.
Over the years, I’ve tested nearly every upgrade method United offers. Below is the simple, traveler-tested guide I wish I had when I started.
When you’re buying your ticket, United often shows an “Upgrade to First/Business” price right on the checkout screen.
This is typically the cleanest and easiest way to upgrade.
Cash upgrades at booking sometimes offer decent value on domestic flights.
For long-hauls, prices vary wildly—this is where it pays to compare.
Pro tip: If the upgrade price looks high, don’t panic. United frequently adjusts prices closer to departure.
If you’ve already booked, just go to My Trips → Upgrade and you’ll see real-time pricing.
I’ve seen cash upgrades drop the week of travel—once my SFO–IAD upgrade fell from $429 to $249 just 48 hours before departure. If your dates are flexible or you enjoy the thrill of “upgrade roulette,” this option is gold.
If you’d rather protect your wallet, you can pay for a United upgrade using miles.
This works well when:
You have leftover miles but not enough for an award ticket.
The route has predictable upgrade inventory.
Some discounted economy fares require a cash co-pay—so the value depends on the route and fare class. To estimate whether it’s worth it, use the simple rule: aim for at least 1.1–1.4 cents per mile.
PlusPoints aren’t exactly “payment,” but they function like upgrade currency.
If you have status, this is usually the smartest option because:
You avoid cash out of pocket
You get better upgrade priority
You can often waitlist with confidence
At the airport—or sometimes through an app notification—United may offer discounted last-minute upgrades. These can be amazing deals on quiet travel days.
If you're debating a last-second offer, it’s perfectly fine to call 877-297-0699 to talk it through before accepting.
Paying for a United upgrade can absolutely be worth it—especially on longer flights where comfort pays off in productivity, rest, or just sanity. The key is knowing when to pay cash, when to spend miles, and when to wait for a deal.