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Flight Check-in
Enter a confirmation number, ticket number or use your MileagePlus® sign-in to access your reservation.
Confirmation or eTicket number:
Last name:
MileagePlus number:
PIN or password:
General Eligibility Requirements:
Check-in is available starting 24 hours before your scheduled departure. Minimum time requirements for check-in, baggage check and boarding may vary based on your departure airport and destination. Learn more about our check-in and boarding requirements.
Find more information and help on how to get started with your flight check-in on united.com.