In 2026, it is almost never worth it to transfer United MileagePlus miles from one person's account to another. United charges a steep fee for this service—typically $15 per 1,000 miles plus a $30 processing fee. For example, transferring 30,000 miles could cost you nearly $480. Since the value of a United mile is generally estimated at 1.1 to 1.3 cents, you are essentially paying more in fees than the miles are worth. A much smarter, "worth it" alternative in 2026 is to simply book the flight for the other person using your miles. You can book a ticket for anyone using your MileagePlus account at no extra cost; you just enter their name and details at checkout. If you are looking to combine miles with family, United's "MileagePlus Miles Pooling" feature (re-introduced and expanded in 2024–2025) is the best way to go. It allows up to five members to pool their miles for free into a shared "pot" for award redemptions, making the paid "transfer" option completely obsolete for most savvy travelers.