United Airlines transfer partners let you move miles from your account to airline and hotel programs, sometimes at better redemption rates than booking United flights directly.
United's transfer partners fall into two categories: other airlines you can fly with, and hotel chains where you can book stays. The transfer happens when ready once you initiate it through your United account. Most transfers are permanent — you cannot move miles back to United after they leave your account, so the decision matters.
Transfer rates vary. Some partners accept miles at a 1:1 ratio (one United mile equals one partner mile). Others discount the rate, meaning you lose value in the exchange. The best transfers depend on what you actually want to book and which partner's redemption rates work in your favor for that specific trip.
Key Takeaways
- United's transfer partners include 13 airlines and 3 hotel chains, each with different redemption rates and award availability.
- Most airline transfers happen at a 1:1 ratio, but some partners discount the rate, so you should compare the cost in miles before transferring.
- Hotel transfers typically require larger mile amounts (often 10,000 miles minimum per transfer) and work best for premium properties.
- Transfers are permanent and cannot be reversed, so confirm the partner's award availability for your dates before moving your miles.
- Transfer bonuses occasionally appear in your United account, offering bonus miles when you move a certain amount to specific partners.
Airline transfer partners and their redemption value
United partners with 13 airlines across the Star Alliance network and beyond. The major partners are Air Canada, Lufthansa, Singapore Airlines, ANA (All Nippon Airways), and LATAM. Each airline sets its own award chart and availability, so the number of miles required for the same route can differ significantly between partners.
Most airline transfers occur at 1:1 value, meaning 10,000 United miles become 10,000 miles in the partner program. However, some partners like Turkish Airlines and Thai Airways occasionally offer transfer bonuses — for example, a 25% bonus means 10,000 United miles become 12,500 partner miles. These bonuses appear in your United account when active and are time-limited.
The real value emerges when you compare award prices. A flight that costs 60,000 United miles might cost only 45,000 Lufthansa miles on the same route. In that case, transferring to Lufthansa saves you 15,000 miles even though you started with United miles. This requires checking both award charts before you transfer.
Hotel transfer partners and minimum transfer amounts
United transfers miles to three hotel programs: Marriott Bonvoy, Hilton Honors, and IHG One Rewards. Hotel transfers work differently than airline transfers because they require larger minimums and the exchange rate is fixed by United, not negotiable.
The minimum transfer is typically 10,000 United miles per transaction, and you receive a set number of hotel points in return. For example, United might offer 1,000 Marriott Bonvoy points per 10,000 United miles transferred. Hotel transfers make sense when you have a specific property in mind and know the nightly point cost. A luxury resort that costs 50,000 Marriott points per night might be worth the transfer if you have 500,000 United miles sitting unused.
Hotel transfers rarely offer the same value as airline transfers for most travelers. The exception is when a premium property has limited award availability through United but abundant availability through the hotel program directly. In that case, the transfer unlocks an option that would otherwise be closed.
How to initiate a transfer and what happens next
Log into your United account, navigate to the "Transfers" or "Manage Miles" section, and select the partner program. Enter the number of miles you want to transfer and confirm the partner account number where the miles should land. United processes most transfers within 24 hours, though some partners take up to 48 hours to post the miles to your account.
Before you transfer, verify that the partner program has the award you want available on your travel dates. Award availability changes constantly, and transferring miles to a partner only to find no seats available is permanent loss. Check the partner's website or call their customer service to confirm availability first.
Keep records of your transfer confirmation number. If miles do not appear in the partner account within the stated timeframe, you will need this number to contact United's customer service. Miles transferred in error cannot be returned to your United account, so the confirmation number is your only proof of the transaction.
Transfer bonuses and when they appear
United occasionally runs transfer bonus promotions where moving miles to a specific partner earns you bonus miles on top of the transfer. For example, a promotion might offer 25% bonus miles when you transfer to Singapore Airlines, meaning 10,000 United miles become 12,500 Singapore miles. These bonuses appear as targeted offers in your United account and are not available to all members simultaneously.
Bonuses typically run for 30 to 60 days and have minimum transfer amounts (often 25,000 or 50,000 miles). The bonus is applied when ready when you complete the transfer. If you have been considering a transfer to a specific partner, checking your United account for active bonuses before transferring can add significant value.
United does not announce transfer bonuses widely, so they are straightforward to miss. Log into your account monthly if you transfer miles regularly, or check the United website's promotions page before moving a large amount of miles.
Comparing transfer value against direct United redemptions
The core decision is whether transferring miles to a partner gives you better value than booking the same trip with United miles directly. This requires checking three things: the United award price, the partner award price, and the transfer rate.
Example: You want to fly from New York to Tokyo. United charges 110,000 miles for a business class seat. ANA (a United partner) charges 85,000 miles for the same seat. United transfers miles to ANA at 1:1 value. In this case, transferring 85,000 United miles to ANA and booking the flight saves you 25,000 miles compared to booking directly with United.
The math changes if a transfer bonus is active. If United offers a 25% bonus on ANA transfers, your 85,000 United miles become 106,250 ANA miles, which is more than enough to cover the award and leaves you with extra miles. Always run this comparison before transferring, because the decision depends entirely on the specific award you want and the rates at that moment.
Risks and limitations of transferring miles
Transfers are permanent. Once miles leave your United account and land in a partner program, United cannot reverse the transaction. If you transfer miles and then find no award availability, or if you change your travel plans, you are left with miles in a program you may not use.
Partner award availability is not may provide. Just because a partner airline has seats available does not mean those seats are available for award redemption. Some airlines release award inventory in waves, and popular routes can sell out quickly. Confirm availability before transferring.
Partner programs have their own rules, blackout dates, and fees. A partner airline might charge fuel surcharges on awards, require stopovers, or have different cancellation policies than United. Review the partner program's terms before transferring, especially for international awards where these rules matter most.
Frequently Asked Questions
Can I transfer miles to a partner and then transfer them back to United?
No. United does not accept transfers back from partner programs. Once miles leave your United account, they stay in the partner program. This is why confirming award availability before transferring is critical.
Do I need to have a frequent flyer account with the partner airline before I transfer?
Yes. You must provide a valid frequent flyer account number for the partner program when you initiate the transfer. If you do not have an account yet, create one first — it is free and takes a few minutes. Make sure the account number is correct, because miles transferred to the wrong account are difficult to recover.
What is the maximum number of miles I can transfer at once?
United typically allows transfers up to 250,000 miles per transaction, though this limit can vary. Check your account for the current limit. If you need to transfer more, you can initiate multiple transfers, but there may be a waiting period between them.
Do transfer bonuses explore to all members or just some?
Transfer bonuses are targeted offers that appear in some accounts but not others. United determines who sees which bonuses based on account activity and other factors. Check your account regularly during bonus periods to see if you have access to current offers.
What happens if I transfer miles but the partner program does not post them?
Contact United customer service with your transfer confirmation number. United can verify that the miles left your account and provide documentation to the partner program. The partner program will then investigate and post the miles if they were not received. This process can take several weeks, so keep your confirmation number.