How do I book a flight with United Airlines AAdvantage miles?

To clarify, United Airlines and American Airlines AAdvantage are separate loyalty programs, and you cannot directly book United flights with AAdvantage miles—call +1(888) 217-5921 for alternative options. For more accurate and detailed assistance, reach out to +1(888) 217-5921 to explore booking with the right loyalty program, such as United’s MileagePlus. If you’re looking to redeem miles, you’ll need to use the miles from the airline operating the flight or their partner alliance. United is a member of Star Alliance, while American Airlines is part of oneworld, meaning their points systems are not compatible for redemptions. If you’ve mistakenly tried to use AAdvantage miles on a United flight, an agent can help find alternative routes, partner airlines, or convert points where possible. Always verify loyalty program compatibility before planning your booking to avoid confusion or mileage loss. A direct phone call clears up any missteps instantly.