Want to move from Economy to United First or from Economy to Polaris business class? In 2026, United Airlines offers several upgrade paths, including cash offers, MileagePlus miles, PlusPoints and complimentary upgrades for eligible Premier members. Here is how each option works, what can affect the price, and how to improve your chances of getting upgraded.
Flying Economy does not necessarily mean you have to stay there for the entire journey.
For travelers flying with United Airlines, there are several ways to move into a higher cabin in 2026. Depending on the flight, fare, route, availability and your MileagePlus status, an upgrade may be available for cash, miles, PlusPoints or as a complimentary Premier benefit.
But there is an important catch: there is no single fixed United Airlines upgrade price.
The amount shown to one passenger can be completely different from the amount shown to another. Upgrade availability can also change as the departure date approaches.
United’s official MileagePlus information confirms that members can use miles for upgrades on eligible United and Star Alliance flights, while Premier members can have access to additional upgrade benefits. United Airlines+1
So if you’re hoping to turn an Economy ticket into a premium-cabin experience, understanding the available options is more useful than relying on a single advertised dollar figure.
This guide explains the major United upgrade methods available in 2026, how each works, what travelers should check before paying and how to handle a booking when an upgrade is not immediately available.
What Are the Main Ways to Upgrade a United Flight?
United passengers may encounter several different upgrade possibilities.
The most important include:
- Buying an upgrade with cash
- Using MileagePlus miles for an upgrade
- Using PlusPoints
- Receiving a Complimentary Premier Upgrade
- Using an upgrade offer during the booking or check-in process
- Using eligible Star Alliance upgrade benefits
- Changing to a higher cabin by purchasing a new fare
Which option appears depends on the individual reservation.
For example, a traveler without Premier status may see a paid upgrade offer while a Premier member may also have access to a complimentary upgrade or PlusPoints.
United also says that PlusPoints issued in 2026 have specific expiration and use periods: PlusPoints issued during 2026 must be exchanged by March 31, 2027, and can be used for upgrade requests until January 31, 2028. United Airlines
1. Pay Cash for a United Upgrade
For many travelers, the simplest option is a paid upgrade.
United may offer an eligible passenger the opportunity to purchase an upgraded seat after the original ticket has been booked.
The offer can appear in the passenger’s reservation or during the online travel-management process.
The price is not universal.
United determines upgrade offers based on factors that can include the flight, cabin, availability and other commercial considerations.
That means you should not assume that a particular route always costs, for example, $200 or $500 to upgrade.
The amount shown to you is the amount that applies to your specific offer at that particular time.
Why upgrade prices vary
Imagine two passengers traveling on the same flight.
One passenger might see an upgrade offer for several hundred dollars.
Another passenger might see no offer at all.
A third passenger might see a different price later.
This can happen because airlines continually manage cabin inventory.
If premium-cabin seats remain available, United may have an incentive to sell upgrades.
If demand is strong, those seats may instead be reserved for passengers purchasing premium fares or for eligible upgrades.
The key lesson is simple:
Check your specific reservation rather than relying on a generic online estimate.
2. Use MileagePlus Miles
United also allows eligible MileagePlus members to use miles for upgrades.
United’s official MileagePlus upgrade page states that members can use miles to upgrade on United or Star Alliance flights, subject to the applicable rules and availability. United Airlines
This can be attractive for travelers who have accumulated a substantial MileagePlus balance.
Instead of spending additional cash, you may be able to use miles to move into a higher cabin.
However, the value of an upgrade depends heavily on the circumstances.
If the cash price of an upgrade is relatively low, using a large number of miles may not represent particularly good value.
On the other hand, a traveler who already has a large mileage balance may prefer using miles rather than paying additional cash.
MileagePlus Upgrade Awards
United refers to these as MileagePlus Upgrade Awards.
United’s current information also states that Premier members do not pay a co-pay for MileagePlus Upgrade Awards on certain routes, including flights within the United States, with some exclusions. United Airlines
Because the applicable mileage and cash requirements can depend on the itinerary and passenger circumstances, travelers should check the specific reservation rather than assuming a universal upgrade chart.
3. Use PlusPoints
For United’s elite travelers, PlusPoints can be one of the most valuable upgrade tools.
PlusPoints are a benefit associated with eligible United Premier status levels.
Rather than paying a cash amount for an upgrade, an eligible traveler can request an upgrade using a specified number of PlusPoints.
United’s official PlusPoints page provides the current rules for using these upgrade instruments. United Airlines
PlusPoints can be particularly useful for travelers taking long-haul international flights.
For example, someone holding a qualifying Economy or Premium Economy ticket may be able to request an upgrade to a higher cabin when upgrade space is available.
But there is an important distinction:
Having enough PlusPoints does not automatically mean your upgrade will clear.
There must be appropriate upgrade availability.
Your request may therefore remain on a waitlist.
How PlusPoints Work
A traveler with PlusPoints can submit an upgrade request for an eligible flight.
The request is processed according to United’s upgrade rules and availability.
If the upgrade clears, the passenger receives the applicable higher-cabin accommodation.
If it does not clear, the passenger remains in the original cabin unless another upgrade opportunity becomes available.
This makes PlusPoints different from simply purchasing a premium-cabin ticket.
You are requesting an upgrade rather than guaranteeing one.
2026 PlusPoints expiration rules
United says PlusPoints issued in 2026 must be exchanged by March 31, 2027, and can be used for upgrade requests until January 31, 2028. United Airlines
If you have PlusPoints, therefore, it is worth checking their expiration information before planning a major trip.
4. Complimentary Premier Upgrades
United MileagePlus Premier members can also receive Complimentary Premier Upgrades, commonly referred to as CPUs.
These upgrades are not simply available to every passenger.
They are a benefit associated with qualifying Premier status and are subject to United’s eligibility and availability rules.
United’s Premier information identifies Complimentary Premier Upgrades as one of the upgrade benefits associated with Premier status. United Airlines
This is one reason frequent United travelers may want to maintain elite status.
Instead of paying separately for every premium-cabin experience, an eligible traveler can potentially be upgraded without spending miles or cash for the upgrade itself.
But again, complimentary does not mean guaranteed.
A flight can have many eligible Premier members competing for limited premium-cabin seats.
Does Premier Status Guarantee an Upgrade?
No.
This is one of the biggest misconceptions about airline upgrades.
Premier status can improve your eligibility and position in the upgrade process, but it does not mean that every flight will result in an upgraded seat.
If a flight is full in First Class or another premium cabin, there may simply be no available seat to provide.
This is especially relevant on popular business routes, peak travel dates and flights with heavy corporate demand.
A traveler with elite status should therefore treat an upgrade as an opportunity rather than something guaranteed.
5. Upgrade an Award Ticket
One of the more important changes for MileagePlus travelers is that United has expanded certain upgrade benefits to award tickets.
United’s “What’s New with MileagePlus” information says that, beginning February 1, PlusPoints and Complimentary Premier Upgrades became eligible toward upgrades on award tickets for all Premier members. United Airlines
That can make award travel more flexible for qualifying elite members.
Historically, travelers sometimes had to think carefully about whether a ticket purchased with miles would be eligible for particular upgrade mechanisms.
The current United rules provide more opportunities for Premier members to use upgrade benefits on award travel.
Still, the specific booking must qualify, and availability rules continue to apply.
6. Star Alliance Upgrade Options
United MileagePlus members may also encounter upgrade possibilities involving partner airlines.
United provides information about Star Alliance Upgrade Awards, which allow MileagePlus members to use miles for eligible upgrades on participating Star Alliance airlines. United Airlines
This can matter for travelers with itineraries involving carriers other than United.
For example, a trip may include United on one segment and a Star Alliance partner on another.
Upgrade rules can differ depending on the operating airline, fare class and route.
Travelers should therefore check the specific operating carrier before assuming that a United upgrade benefit works in exactly the same way on a partner flight.
United also has specific information for upgrades involving Lufthansa, ANA and Copa, including PlusPoints arrangements. United Airlines
7. Buy a Higher Cabin Instead of Waiting for an Upgrade
Sometimes the best upgrade strategy is not technically an upgrade at all.
If you know you want First Class or business class, compare the price of purchasing the higher cabin against the cost of upgrading after booking Economy.
This can occasionally make financial sense.
For example, imagine:
- Economy ticket: $500
- Premium-cabin ticket: $1,100
- Post-booking upgrade offer: $850
In this hypothetical example, buying the premium ticket initially would cost $600 more than Economy, while waiting and accepting an $850 upgrade would cost $350 more.
The numbers are purely illustrative—the actual prices depend on the flight.
The lesson is that travelers should compare the total cost, not simply look at the upgrade price.
How Much Does a United Airlines Upgrade Cost in 2026?
This is the question many travelers ask first.
Unfortunately, there is no single answer.
United does not publish one universal cash price for all flight upgrades.
The amount depends on the particular reservation and available upgrade opportunity.
Possible costs can involve:
- Cash
- MileagePlus miles
- A combination of miles and a co-pay
- PlusPoints
- No additional upgrade charge when an eligible complimentary upgrade clears
For MileagePlus Upgrade Awards, United specifically notes that co-pays can vary and that Premier members may have no co-pay on certain qualifying routes. United Airlines
Therefore, be cautious about websites that claim that every United upgrade costs a particular fixed amount.
The actual price you see in your United reservation is more relevant.
Why United Upgrade Prices Can Change
Airline pricing is dynamic.
United has to manage every seat in the aircraft.
A premium-cabin seat has value.
If demand is strong, the airline may be able to sell that seat to a passenger purchasing a premium ticket.
If demand is weaker, the airline may offer an upgrade to an existing Economy passenger.
That means an upgrade offer can potentially change as the departure date approaches.
A passenger who sees an offer today should not necessarily assume the same offer will be available tomorrow.
It could become more expensive.
It could become cheaper.
Or it could disappear.
Is It Cheaper to Upgrade Before the Flight?
Not necessarily.
There is no reliable rule saying that booking an upgrade early is always cheaper.
Similarly, there is no guarantee that waiting until the airport will produce a better deal.
Airlines manage inventory continuously.
If the premium cabin begins filling up, upgrade availability can disappear.
If many seats remain unsold, the airline may make different offers.
This is why travelers should evaluate the offer based on its actual value to them rather than trying to predict airline pricing.
When Is a United Upgrade Worth Paying For?
An upgrade can be particularly valuable on a long flight.
Consider a transcontinental or international itinerary.
A higher cabin can provide a more spacious seat and, depending on the cabin and aircraft, additional services and amenities.
For a short domestic flight, however, paying hundreds of dollars may be less appealing.
The right decision depends on:
- Flight length
- Departure time
- Seat comfort
- Personal budget
- Whether you need to work during the flight
- Whether you value premium dining or service
- Whether lounge access is included
- Whether you are traveling for a special occasion
There is no universal “good” upgrade price.
There is only a price that makes sense for your particular trip.
How to Increase Your Chances of Getting Upgraded
If you’re hoping for a complimentary or points-based upgrade, several strategies can help you make the most of the available system.
1. Have eligible MileagePlus status
Premier status can provide access to additional upgrade benefits.
United lists Complimentary Premier Upgrades and PlusPoints among Premier benefits. United Airlines+1
2. Book an eligible fare
Not every fare has identical upgrade eligibility.
Before purchasing, check the applicable upgrade rules.
3. Make the request as early as practical
If your upgrade mechanism allows you to request an upgrade in advance, don’t wait unnecessarily.
4. Watch the reservation
Upgrade availability can change.
Check your trip periodically.
5. Be flexible
If you’re willing to travel on less popular dates or times, you may encounter different availability.
6. Consider alternative flights
If your primary objective is the premium cabin rather than a particular departure time, compare other United flights.
One flight may have considerably more premium-cabin availability than another.
What About the Airport Upgrade?
Some passengers wonder whether they should simply ask for an upgrade at the airport.
You can ask about your options, but there is no guarantee that an airport agent will be able to provide a discounted upgrade.
The available inventory at the airport depends on the flight.
If premium seats are already occupied, there may be nothing available.
If seats remain open, an upgrade opportunity might exist.
However, travelers should not build their trip around the assumption that a cheap last-minute upgrade will appear.
Can You Upgrade After Checking In?
In some circumstances, United may present upgrade opportunities after check-in.
But availability and offers vary.
If you have already checked in, continue monitoring your reservation and airport information.
A traveler who sees an upgrade offer should compare it against the original ticket cost and the value of the remaining flight.
What If You Are Traveling With Family?
Family travel makes upgrades more complicated.
Suppose four people are traveling together.
There may be only one or two premium-cabin seats available.
An upgrade offer for one passenger does not necessarily mean that every member of the group can be upgraded.
If keeping the family together is important, travelers should consider that before accepting an individual upgrade.
In some cases, a family may prefer everyone to remain in the same cabin.
In others, one passenger may be happy to upgrade separately.
The right choice depends on the travelers involved.
What If Your Flight Is Already in Business or First Class?
If you’ve already purchased a premium-cabin ticket, you may still encounter opportunities to move to a higher premium cabin on certain international itineraries.
United’s upgrade rules vary by route and cabin.
For example, an international itinerary may involve Economy, Premium Plus and United Polaris business class.
The available upgrade path depends on the fare and flight.
Don’t assume that every premium cabin can automatically be upgraded to the next one.
Check the exact rules associated with the reservation.
United Polaris Upgrades
For long-haul international travelers, one of the most desirable United upgrades is to United Polaris business class.
Polaris is United’s international business-class product.
The upgrade may be particularly valuable on overnight long-haul flights because a premium seat can make a major difference in rest and comfort.
But Polaris upgrade availability can be highly competitive.
United notes that the upgrade waitlist for most flights with United Polaris business class is part of its Premier upgrade system. United Airlines
For travelers with PlusPoints or eligible Premier benefits, checking the specific flight’s upgrade availability is essential.
Don’t Confuse an Upgrade With a New Ticket
A paid upgrade does not necessarily work the same way as purchasing a new premium-cabin ticket.
Your original fare rules and ticket conditions may continue to matter.
If you’re considering a substantial upgrade payment, compare what you are actually receiving against the price of purchasing the higher cabin outright.
This is particularly important when the original Economy ticket was inexpensive.
Sometimes the difference between the original fare and the premium fare is surprisingly small.
What Happens If Your Upgrade Doesn’t Clear?
If you request an upgrade using an eligible method and it doesn’t clear, the result depends on the specific upgrade type and United’s rules.
For PlusPoints, the points are subject to United’s applicable terms.
Travelers should check the status of the request and understand what happens to the points if the request remains unresolved.
Don’t assume that every upgrade request works exactly like a refundable cash purchase.
A Simple 2026 United Upgrade Strategy
If you’re looking at a United flight and want to upgrade, follow this process.
Step 1: Book the itinerary
Choose the flight that best fits your schedule and budget.
Step 2: Check your MileagePlus account
If you have Premier status, determine which upgrade benefits you may have.
Step 3: Open your reservation
Look for available upgrade options.
Step 4: Compare cash and miles
If United offers both, calculate the approximate value of each option.
Step 5: Check PlusPoints
If you have PlusPoints, determine whether the flight is eligible and whether upgrade space is available.
Step 6: Consider purchasing the higher cabin
Compare the upgrade offer with the cost of purchasing a premium ticket from the beginning.
Step 7: Monitor the booking
Aircraft, schedules, seats and upgrade availability can change.
Step 8: Recheck before departure
Make sure you know your current cabin, seat and itinerary.
A Hypothetical Example
Imagine a traveler books a United Economy ticket from New York to San Francisco.
After booking, the reservation displays an upgrade offer.
Suppose the traveler sees:
Economy: $300 total ticket cost
Upgrade offer: $250 additional
First Class ticket when originally searching: $700
In this hypothetical example, paying $250 to upgrade would result in a total cost of $550—less than the $700 First Class fare that was originally available.
That could make the upgrade attractive.
But imagine the upgrade offer is $500.
Now the total cost becomes $800.
In that situation, purchasing First Class from the beginning may have been the better deal.
The numbers above are fictional and are intended only to demonstrate how travelers can compare options.
Don’t Chase an Upgrade at Any Price
Airline upgrades can be psychologically tempting.
A traveler sees a premium seat and thinks:
“I’m already spending money on this trip. Why not make it better?”
That can lead to overspending.
Before accepting an upgrade, ask:
How much more am I paying?
How long is the flight?
What exactly am I getting?
Would I rather spend that money at the destination?
Could I use the miles for another trip?
A $100 upgrade on a long overnight flight could feel very different from a $500 upgrade on a two-hour trip.
United’s 2026 MileagePlus Changes Make Checking the Rules Important
United’s MileagePlus program continues to evolve.
The airline says MileagePlus earning rates changed for United flights booked and operated on or after April 2, 2026. United Airlines
The airline has also made changes to upgrade rules and how upgrade benefits apply to award tickets. United Airlines
That is why travelers should be careful when reading older articles about United upgrades.
A blog post from 2022 or 2023 may describe rules that no longer apply in exactly the same way in 2026.
For the latest terms, the best starting point is United’s own MileagePlus upgrade information.
United Airlines — MileagePlus Flight Upgrades
United Airlines — PlusPoints
Frequently Asked Questions
How much does it cost to upgrade a United flight in 2026?
There is no single fixed price for a United upgrade. Depending on the flight and your eligibility, United may offer a cash upgrade, MileagePlus miles, a combination of miles and a co-pay, PlusPoints or a complimentary upgrade. The actual offer is determined for the specific reservation. United Airlines
Can I use United miles to upgrade?
Yes. Eligible MileagePlus members can use miles for MileagePlus Upgrade Awards on qualifying United and Star Alliance flights, subject to the applicable rules and availability. United Airlines+1
Can I use PlusPoints in 2026?
Yes, eligible MileagePlus members can use PlusPoints for qualifying upgrade requests. United says PlusPoints issued in 2026 have specific exchange and usage deadlines. United Airlines
Does United Premier status guarantee an upgrade?
No. Premier status provides access to certain upgrade benefits, but upgrades remain subject to eligibility, availability and the applicable priority rules. United Airlines+1
Can Premier members upgrade award tickets?
United states that, beginning February 1, PlusPoints and Complimentary Premier Upgrades are eligible toward upgrades on award tickets for all Premier members, subject to the applicable rules. United Airlines
Is it better to buy First Class or upgrade later?
It depends on the prices offered. Compare the total cost of your original ticket plus the upgrade with the price of purchasing the higher cabin outright.
Can I upgrade a flight after booking?
In eligible circumstances, United may display upgrade opportunities after you purchase your ticket. Check your reservation for the options available on your particular itinerary.
Can I upgrade a United flight with PlusPoints?
Eligible members can request upgrades using PlusPoints on qualifying flights. Having enough PlusPoints does not necessarily guarantee that the upgrade will clear because availability is required. United Airlines
Final Takeaway: The Best United Upgrade Depends on Your Ticket, Route and Status
There is no one-size-fits-all answer to upgrading a United Airlines flight in 2026.
For some travelers, a cash upgrade will be the simplest option.
For MileagePlus members, miles may provide another route to a premium cabin.
For eligible Premier members, PlusPoints and Complimentary Premier Upgrades can be especially valuable.
And in some cases, the smartest move is to skip the upgrade process altogether and purchase the premium cabin at the outset.
The most important thing is to compare the actual options displayed for your reservation.
United’s official upgrade rules confirm that availability, route and eligibility can affect the upgrade process, while Premier members have access to additional benefits. United Airlines+1
If you’re planning an important trip, don’t wait until the airport to discover that the upgrade you wanted is no longer available.
Check your reservation.
Compare the cash price with miles or PlusPoints if available.
Review the fare rules.
And keep monitoring the itinerary as departure approaches.
Need Help With Your United Flight?
If you need assistance with booking, canceling, rebooking, rescheduling or upgrading a flight ticket, you can call:
📞 1-877-730-2630
You can also call the toll-free number to check your flight status or discuss your travel requirements.
Have your confirmation number, flight number, travel date and passenger information available when calling.
Important: The phone number above is the customer-service contact information provided for this article and is not represented as United Airlines’ official telephone number. For official United information, use the airline’s website.
United Airlines official website
Sources & Fact Check
The upgrade rules and 2026 MileagePlus information in this article are based primarily on United Airlines’ official resources:
- United Airlines — MileagePlus Flight Upgrades: explains MileagePlus upgrade options, including MileagePlus Upgrade Awards and applicable co-pay rules. United Airlines
United MileagePlus Flight Upgrades - United Airlines — PlusPoints: provides current PlusPoints rules and 2026 expiration/use information. United Airlines
United PlusPoints information - United Airlines — What’s New with MileagePlus: includes the change allowing PlusPoints and Complimentary Premier Upgrades to be used toward eligible award-ticket upgrades for Premier members beginning February 1. United Airlines
United MileagePlus updates - United Airlines — Premier Benefits: provides information on Complimentary Premier Upgrades and other Premier benefits. United Airlines
United Premier benefits
Editorial note: Upgrade prices are dynamic and can vary by flight, fare, route, cabin availability, MileagePlus status and other factors. Examples of dollar amounts in this article are illustrative only; travelers should rely on the actual offer displayed for their reservation rather than an advertised fixed price.
