Directly combining miles from different airlines into a single frequent flyer account is generally not possible. However, you can use airline alliances, transferable credit card points, and strategic booking workarounds to achieve the exact same result.

If you have 20,000 miles with Delta and 30,000 miles with United, you cannot merge them into a single pot of 50,000 miles. But by understanding how the aviation and credit card ecosystems work, you can easily use different pools of points to book the same trip, transfer points to shared partners, or leverage alliance networks to fly on one airline using the miles of another.

The Power of Airline Alliances: Booking, Not Combining #

While you cannot literally move miles from airline A to airline B, you can use airline alliances to achieve the same goal. The global aviation industry is dominated by three massive alliances: Star Alliance, SkyTeam, and Oneworld.

Within these alliances, member airlines allow you to use their miles to book flights on any other partner airline, provided there is award space available. Instead of trying to combine your miles, you simply earn and accumulate miles in the program that offers the best redemption rates, and then use those miles to book flights operated by partner carriers.

Star Alliance #

The largest global alliance includes carriers such as United Airlines, Air Canada, Lufthansa, ANA, Singapore Airlines, and Swiss.

• The Workaround: If you want to fly on United Airlines, you do not need United MileagePlus miles. You can use Air Canada Aeroplan miles or Singapore Airlines KrisFlyer miles to book that exact same United flight.
• Why This Matters: Air Canada and United are separate programs, but because they are in the same alliance, your “different” miles can be used to book the same physical plane seats.

Oneworld #

This alliance features American Airlines, British Airways, Alaska Airlines, Qantas, Qatar Airways, and Cathay Pacific.

• The Workaround: You can use British Airways Avios to book domestic flights on American Airlines or Alaska Airlines. This is often one of the best “sweet spots” in award travel, as British Airways frequently charges fewer miles for short-haul domestic U.S. flights than American Airlines charges its own members.

SkyTeam #

SkyTeam includes Delta Air Lines, Air France, KLM, Virgin Atlantic, and Korean Air.

• The Workaround: Delta SkyMiles are notorious for high redemption rates (often referred to as “SkyPesos”). However, you can use Air France/KLM Flying Blue miles or Virgin Atlantic Flying Club points to book Delta-operated flights for a fraction of the price.

By shift-focusing from “How do I combine these miles?” to “Which partner program can I use to book this flight?”, you bypass the technical limitation of locked airline programs.

The Avios Exception: The Only True Way to Merge Miles #

While 99% of airlines do not allow you to transfer miles directly to another carrier, there is one major exception: the Avios ecosystem.

Several major airlines use the exact same loyalty currency, called Avios. These airlines include:

• British Airways
• Iberia
• Qatar Airways
• Finnair
• Aer Lingus

Because these airlines share a common currency, you can link your individual frequent flyer accounts and transfer your Avios between them instantly, at a 1:1 ratio, for free.

How to Combine Avios Across Airlines #

1. Create frequent flyer accounts with the airlines you want to link (e.g., British Airways Executive Club and Qatar Airways Privilege Club).
2. Ensure your personal details (first name, last name, date of birth, and email address) match exactly across all accounts.
3. Log into your British Airways account, navigate to the “Combine My Avios” section, and select the partner airline you wish to link.
4. Follow the prompts to authorize the link. Once connected, you can move Avios back and forth instantly.

This exception is incredibly powerful. For example, you can earn Avios on British Airways, move them to Qatar Airways, and use them to book Qatar’s world-renowned Qsuite business class.

Transferable Credit Card Points: The Ultimate Solution #

If you want to truly combine rewards to book a single flight, the best strategy is to avoid earning airline-specific miles in the first place. Instead, focus on earning transferable credit card points.

Flexible point programs—such as Chase Ultimate Rewards, American Express Membership Rewards, Capital One Venture rewards, and Citi ThankYou Rewards—act as a central clearinghouse. These points sit in your credit card account until you are ready to book a trip. At that point, you can transfer them to dozens of different airline partners.

The “Shared Partner” Strategy #

Because many airlines partner with multiple credit card programs, you can combine points from different credit cards into a single airline account.

For example, Air France/KLM Flying Blue is a transfer partner of Chase, Amex, Capital One, and Citi. If you need 80,000 Flying Blue miles to book a business class flight to Europe, you can combine:

• 30,000 points from your Chase Ultimate Rewards account
• 30,000 points from your Amex Membership Rewards account
• 20,000 miles from your Capital One Venture account

By transferring all of these points to the same Flying Blue account, they instantly merge into a single pool of 80,000 miles.

Juggling multiple credit cards to maximize your point accumulation can get complicated quickly. To keep your strategy organized, consider tracking your reward categories in one dashboard to ensure you are always using the right card for the right purchase. Furthermore, as you open new cards to acquire these highly valuable flexible points, monitoring your sign-up bonus progress becomes essential to guarantee you never miss a minimum spend deadline.

Points.com and Third-Party Exchanges: Why to Avoid Them #

If you search for ways to combine miles online, you will likely encounter Points.com. This platform partners with several loyalty programs to allow users to trade, exchange, or move miles between different accounts.

While it is technically a way to combine miles from different airlines, it is almost always a terrible financial decision.

The exchange rates offered on these platforms are incredibly poor. For example, you might have to trade 10,000 miles from Airline A just to receive 1,500 to 2,000 miles in Airline B. You lose 80% or more of the value of your rewards in the process.

Unless you have a small batch of orphaned miles that are about to expire and you have absolutely no other use for them, avoid third-party exchange platforms entirely. Your miles are far too valuable to be traded away at such abysmal ratios.

Marriott Bonvoy: The Emergency Transfer Bridge #

Another option to combine points across programs is Marriott Bonvoy. Marriott is unique because its hotel loyalty points can be transferred to more than 35 different airline frequent flyer programs.

Generally, Marriott points transfer to airlines at a 3:1 ratio (3,000 Marriott points equal 1,000 airline miles). Plus, for every 60,000 Marriott points you transfer to an airline, Marriott usually throws in a 5,000-mile bonus (resulting in 25,000 airline miles total).

How to Use Marriott as a Bridge #

If you have a Marriott Bonvoy account, you can use it to top off an airline account where you are just short of an award ticket. For example, if you need 5,000 more United miles for a flight, you can transfer 15,000 Marriott points to United to get over the finish line.

However, the reverse is not true. You cannot transfer miles from Delta or United into your Marriott Bonvoy account to then transfer them to another airline. Once miles are inside an airline frequent flyer account, they are locked there. The Marriott bridge only works one way: from hotels to airlines.

Combining Miles with Other People (Family Pooling) #

Sometimes the issue isn’t combining miles across different airlines, but rather combining miles from the same airline across different people (such as family members).

Fortunately, many airlines have realized that families want to pool their miles together to book group trips. Several major carriers offer formal “Family Pooling” or “Household Accounts” that let you merge balances for free:

• JetBlue: Allows up to seven family members to pool their TrueBlue points into a single “Points Pooling” account.
• Air Canada: Offers Aeroplan Family Sharing, allowing up to eight family members to combine their miles.
• British Airways: Allows up to six people living at the same physical address to create a Household Account to pool Avios.
• Frontier Airlines: Offers family pooling for Elite status members or holders of their co-branded credit card.

If your airline does not offer free pooling, they will likely charge you a fee to transfer miles from one person’s account to another. These fees are usually exorbitant (often 1 cent per mile plus a processing fee), making it cheaper to buy a ticket with cash rather than paying to transfer the miles.

Focus on simplifying your credit card management to earn transferable points directly into a single primary account, rather than earning small, un-poolable balances across multiple family members’ individual airline accounts.

Frequently Asked Questions #

Can I transfer Delta miles to United? #

No. You cannot transfer miles directly between Delta Air Lines and United Airlines. Because they belong to different, competing airline alliances (SkyTeam and Star Alliance, respectively), there is no pathway to link or trade miles between these two programs.

Can I use my American Airlines miles to book a flight for someone else? #

Yes. While you cannot combine your miles with someone else’s miles, you can use your own miles to book an award ticket in anyone else’s name. During the checkout process, simply enter their traveler details instead of your own.

Does transferring credit card points to airlines count as combining? #

Yes, this is the most effective way to combine rewards. You can transfer flexible points from different credit cards into the exact same airline frequent flyer program, effectively merging your credit card points into a single airline balance to book a flight.

What is the best way to keep track of all my points and miles? #

To maximize your travel rewards, you should use a dedicated organizing tool. Keep track of your credit card details, annual fees, and reward categories in one centralized location so you always know which card to use to earn the transferable points that make combining rewards possible.