Amex to United: Complete Guide to Booking Flights [2026]

Last Updated on July 27, 2026 by Daniel Globe

If you’ve been searching for a way to transfer American Express Membership Rewards points straight into United MileagePlus, the key fact is simple: you can’t transfer them directly. United MileagePlus is not an American Express transfer partner. You can still use Amex points for United flights, though, either by booking a paid United ticket through American Express Travel or by transferring points to an eligible Star Alliance loyalty program and booking a United-operated award.

Why You Can’t Transfer Amex Points Directly to United

American Express Membership Rewards lets eligible U.S. Card Members transfer points to participating airline and hotel loyalty programs. However, Amex’s current transfer-partner page lists 19 programs—16 airlines and 3 hotels—and United MileagePlus is not among them.

As of July 2026, Amex’s U.S. transfer portal displays 19 participating loyalty programs, and United MileagePlus is not one of them.

That means there is no legitimate Amex Membership Rewards → United MileagePlus transfer ratio. You cannot move 50,000 Membership Rewards points into MileagePlus and receive 50,000 United miles, for example.

United does have a direct transferable-points relationship with Chase. Eligible Chase Ultimate Rewards cards can transfer points to United MileagePlus, according to Chase’s current transfer-partner guide.

If you already have Amex points, however, you do not need to abandon the idea of flying United. The two main methods below still work.

Path 1: Book a United Flight Through Amex Travel

The simplest option is to book an eligible United ticket through American Express Travel and use Membership Rewards Pay with Points.

American Express currently values Membership Rewards points used for flights through Amex Travel at 1 cent per point. At that rate, a $500 eligible airfare would require 50,000 points if you covered the entire fare with points.

Amex also allows you to combine points with your eligible Card. According to the Pay with Points rules, you need at least 5,000 Membership Rewards points in your account to use the option.

How Pay with Points actually works

1. Log in at AmexTravel.com and search for your itinerary.
2. Select an eligible United flight.
3. At checkout, choose “Use Only Points” or “Use Points + American Express Card.”
4. Choose how many Membership Rewards points to apply.
5. American Express charges the full eligible purchase amount to your Card and then applies a corresponding credit for the points used, generally in a separate transaction.

Business Platinum can change the math

Eligible U.S. Business Platinum Card Members can receive 35% of the Membership Rewards points used for an eligible Pay with Points flight back when the booking is with their selected qualifying airline, subject to the program’s annual cap and other terms.

If United is your selected qualifying airline and the flight meets the benefit rules, that rebate can make the Amex Travel route much more attractive than the standard 1-cent-per-point calculation. Check your Card’s current benefit terms before booking because qualifying airlines, caps, and other conditions can change.

Path 2: Transfer Amex Points to a Star Alliance Program

United is a Star Alliance member, so another strategy is to transfer Membership Rewards points to an Amex airline partner that can issue Star Alliance awards and then book a United-operated flight through that program.

Four commonly relevant Amex partners are Air Canada Aeroplan, ANA Mileage Club, Avianca LifeMiles, and Singapore Airlines KrisFlyer. Amex’s current U.S. transfer portal displays each at a 1:1 exchange ratio: 1,000 Membership Rewards points = 1,000 partner points or miles.

The crucial detail is that the partner program—not United MileagePlus—controls the mileage price, fees, change rules, and award inventory you see when booking through that program.

Comparing the main Star Alliance options

Air Canada Aeroplan

Aeroplan deserves special attention because its United pricing changed. Since March 25, 2025, United has been included in Aeroplan’s “Air Canada and select partners” award structure rather than simply using the fixed pricing applied to many other partner airlines.

The current Aeroplan Flight Reward Chart uses distance bands and publishes starting and median pricing for Air Canada and select partners, including United. The exact price can therefore vary.

Aeroplan’s current Flight Reward Policy also applies a C$39 partner booking fee per ticket to rewards that include travel on an airline other than Air Canada and its specified in-house operators.

ANA Mileage Club

ANA’s current Partner Flight Awards include United and other Star Alliance carriers. ANA uses a zone-based partner award chart rather than a distance-based chart.

Another important freshness change is that ANA introduced one-way partner awards for reservations and tickets issued from June 24, 2025. Mileage requirements depend on the origin and destination zones and cabin.

Avianca LifeMiles

LifeMiles is another Amex transfer partner that can provide access to eligible Star Alliance awards, including United-operated flights. Search the exact itinerary in LifeMiles before transferring and compare the displayed mileage requirement, taxes, booking charges, and change or cancellation conditions with other programs.

Singapore Airlines KrisFlyer

KrisFlyer also permits Star Alliance award redemptions. Its current Star Alliance award chart prices travel by regions, with one-way Star Alliance awards generally requiring half the corresponding round-trip mileage shown on the chart.

Singapore Airlines notes that online award booking has been rolled out progressively across Star Alliance partners. If an eligible itinerary cannot be selected online, KrisFlyer may direct members to its reservation process or Membership Services.

Limitations and Restrictions

Step-by-Step: Using Amex Points for a United Flight

Which process you follow depends on whether simplicity or an airline award gives you the better result.

Option 1: Book through Amex Travel

1. Log in to AmexTravel.com with an eligible Membership Rewards account.
2. Search for your origin, destination, and travel dates.
3. Select an eligible United itinerary.
4. At checkout, select “Use Only Points” or “Use Points + American Express Card.”
5. Apply at least the minimum required points and complete the booking.
6. Add your MileagePlus number to the reservation if it is not already attached.

Option 2: Transfer to a Star Alliance partner

1. Create or log in to the loyalty account you intend to use, such as Aeroplan, ANA Mileage Club, LifeMiles, or KrisFlyer.
2. Search that program directly for your exact origin, destination, date, cabin, and number of travelers.
3. Confirm that the United-operated flight is genuinely bookable and note the required miles plus all cash charges.
4. Compare the result with at least one other program and with the cash fare through Amex Travel.
5. Log in to Membership Rewards and open the transfer-partner page.
6. Link your eligible loyalty account if necessary and confirm the live transfer ratio, permitted amount, and estimated transfer time.
7. Transfer only the number of Membership Rewards points you need.
8. Wait until the miles appear in the partner account, then complete the award booking through that program.

Getting the Most Value From Your Points

The best redemption is not automatically the option with the lowest mileage price. Compare what you are actually giving up and what you receive.

• Start with the cash price. Because Amex Travel currently values points used for flights at 1 cent each, a $400 eligible fare would require about 40,000 Membership Rewards points before any Card-specific rebate.
• Compare the complete partner-award cost. Look at required miles plus taxes, booking fees, and any change or cancellation costs.
• Search before transferring. A speculative transfer can strand points because Membership Rewards transfers are final.
• Check more than one program. Aeroplan, ANA, LifeMiles, and KrisFlyer do not necessarily charge the same number of miles for the same United flight.
• Check your Card benefits. Business Platinum Card Members who qualify for the 35% Airline Bonus may get substantially different economics from the standard Amex Travel calculation.
• Check live transfer offers. American Express sometimes runs targeted or temporary transfer promotions. Treat any bonus as time-sensitive and verify the current offer inside your account rather than relying on an old percentage quoted online.

Portal ticket or partner award?

Amex Travel is usually easier because you are effectively using points toward a paid airfare. You are not depending on Star Alliance award inventory, and Amex says eligible flight bookings can still earn frequent-flyer miles.

A partner award can require more work, but it may use fewer Membership Rewards points than paying the full cash-equivalent price through Amex Travel. Whether it is actually better depends on the award price, fees, flexibility, and your available Card benefits.

Other Ways to Use Amex Membership Rewards Points

If United is not essential, Membership Rewards offers many direct transfer choices. The current U.S. partner list includes programs such as Delta SkyMiles, Air France-KLM Flying Blue, British Airways, Virgin Atlantic Flying Club, Air Canada Aeroplan, ANA Mileage Club, Singapore Airlines KrisFlyer, Hilton Honors, and Marriott Bonvoy, among others.

Transfer ratios vary. Most of the programs discussed in this article currently display a 1:1 ratio, but not every Amex partner does. Always use the live Membership Rewards transfer page as the final authority.

You can also skip airline transfers and use Membership Rewards through Amex Travel for eligible flights on many airlines. That can be useful when award space is unavailable or when the cash fare is low enough that transferring miles would provide little advantage.

Beyond points strategy, broader travel planning can also affect the trip itself. For example, you may want to review your travel-card planning, compare considerations for long-haul flights, or think about comfort items such as merino wool travel socks when preparing for a longer United or partner-airline itinerary.

Is It Worth Using Amex Points for United Flights?

It can be. The right method depends on the specific flight.

Booking through Amex Travel is the simpler choice and gives you a predictable baseline of 1 cent per point on eligible airfare. It also avoids the need to find partner award space. For an eligible Business Platinum Card Member whose selected qualifying airline is United, the 35% Airline Bonus can make this route even more attractive.

Transferring to a Star Alliance program makes more sense when you find a confirmed United award whose total mileage and cash cost compare favorably with the paid fare. The trade-off is that the booking follows the partner program’s rules, and transferred points cannot simply be moved back to Amex.

If you fly United frequently and specifically want MileagePlus miles, an eligible Chase Ultimate Rewards card provides a more direct route because United is a Chase transfer partner. Membership Rewards remains useful for United travel, but the path is indirect.

Frequently Asked Questions

Can I transfer Amex points to United Airlines?

No. United MileagePlus is not an American Express Membership Rewards transfer partner. You can still use Membership Rewards for a United flight by booking through Amex Travel with Pay with Points or by transferring points to an eligible Star Alliance program and booking a United-operated award.

How do I use Amex points for a United flight?

The easiest method is to find an eligible United flight through Amex Travel and use Pay with Points. The other main method is to find a bookable United award through an Amex Star Alliance transfer partner such as Aeroplan, ANA Mileage Club, LifeMiles, or KrisFlyer, transfer the required points, and book through that program.

Is there a minimum number of Amex points required to transfer?

There is no single minimum that applies to every transfer partner. American Express says each participating program determines its minimum, maximum, and permitted transfer increments. Check the live transfer screen for the program you plan to use.

Are there fees for transferring Amex points to airline partners?

American Express charges an excise-tax offset fee of $0.0006 per point, capped at $99, when converting Membership Rewards points to a U.S. airline frequent-flyer program. The four Star Alliance programs discussed here are not U.S. airline programs, so that Amex transfer fee does not apply to those transfers. Award tickets can still have their own taxes and program-specific fees.

How long does an Amex points transfer take?

Transfer time depends on the loyalty program. American Express displays an estimated processing time for each partner in its transfer portal. Check that estimate immediately before moving points and do not assume a transfer will be instant.

Can I transfer Amex points to a family member’s loyalty account?

Not to just any family member. American Express says the partner loyalty account receiving the points must belong to you or to an eligible Additional Card Member linked to your Membership Rewards account. The Additional Card must have been issued to that person for at least 90 days before you can link the Additional Card Member’s loyalty-program account.

Why can I see a United award on United.com but not through Aeroplan or another partner?

United does not make every MileagePlus award seat available to every partner program. Partner award inventory and pricing can differ, so the important search is the one performed through the loyalty program that will actually issue your award ticket.

Will I earn United miles on a flight booked with Amex points?

An eligible flight booked through Amex Travel with Pay with Points can earn frequent-flyer miles according to American Express, so add your MileagePlus number when appropriate. A traditional United award booked with miles from a Star Alliance program generally does not earn normal flight miles because it is an award ticket.

Sources

1. American Express Membership Rewards Transfer Partners — current U.S. transfer-partner roster, transfer ratios, limits, and estimated timing.
2. American Express Travel: How to Pay with Points — Pay with Points process, minimum points, Card charge and credit mechanics, and flight-booking rules.
3. Air Canada Aeroplan Flight Reward Chart — current United/select-partner reward pricing structure and distance bands.
4. Aeroplan Flight Reward Policy — partner booking fees and current reward-reservation rules.
5. ANA Mileage Club Partner Flight Awards — United eligibility, zone-based partner awards, and current one-way award rules.
6. Singapore Airlines KrisFlyer Star Alliance Awards — Star Alliance redemption process and online-booking limitations.