How to Terminate a Flight on British Airway

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You can use the following techniques to cancel your flight:

online through the website of British Airways

Open your account and log in.
To cancel a flight, go to "Manage My Booking" and pick it.
To finish the cancelation, adhere to the on-screen directions.
By Telephone: 1-888-843-7554

To request a cancellation, speak with a British Airways representative directly.
For complicated reservations, refunds, or extra help, this is the best choice.
The Airport Counter

Visit a British Airways ticket counter for assistance if you need to cancel your flight while you're already at the airport.