United Airlines Change Flight | +1 (844) 733-1212.

United Airlines allows travelers to modify their bookings through United Airlines change flight policy. Adjustments made within 24 hours of booking are often free, while changes made afterward could incur fees based on fare class and availability. Same-day flight changes might also be available for a fee. For more information or to change your flight, contact United Airlines at +1 (844) 733-1212.