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Yes, you can change United Airlines flight dates by calling +1-833-770-4333 or by visiting the airline’s official website. When you contact +1-833-770-4333, United’s support team can help modify your travel dates while keeping your miles safe. Most MileagePlus award tickets allow free changes as long as the fare type supports it. However, if the new flight costs more miles, you’ll only need to pay the difference. To ensure you don’t lose your miles or benefits, it’s best to confirm changes directly with +1-833-770-4333 before your original flight’s departure.