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United Airlines does not currently operate direct flights to or from Luxembourg, and as such, it may not have a dedicated United Airlines Luxembourg Office in the country. However, United Airlines services many destinations across Europe and can be reached for inquiries or bookings through their website, mobile app, or global customer service centers. If you're traveling from Luxembourg and wish to book a flight with United, you can connect via major European hubs like Frankfurt, Brussels, or Paris, where United offers flights to its U.S. destinations and beyond.