To change your flight with Virgin, you can follow these steps:

1. Visit the Virgin website and log in to your account.

2. Go to the "Manage My Booking" section.

3. Select the booking you want to change.

4. Click on the "Virgin Change Flight" option.

5. Choose your new flight details, such as the date and time of your new flight.

6. Review the changes you have made to your booking and confirm your new flight details.

7. Pay any difference in fare or fees that may apply to your new booking.

Alternatively, you can call Virgin's customer service hotline and request to change your flight over the phone. The representative will guide you through the process and assist you in making the necessary changes to your booking.

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Source: https://manageairlinesbooking.com/blog/virgin-change-flight/