Latest possible moment to claim voucher?

[tk.h]

Hello,

Unfortunately I have covid at the moment but am due to travel at the end of the week. I booked the tickets at the end of last year so I know I can claim a voucher but I also want to wait to see if I can clear covid.

Does anybody know the last possible moment you can cancel a booking and claim a voucher with BA? I’m assuming it’s just before check in but could I even wait until the morning of the flight?

Thanks

[AJA]

I assume your flight booking is still valid under BWC terms,sounds like it is. In which case you have until check in closes at the airport but I’d not leave it that late.

[AJA]

Hope you get well soon too.

[tk.h]

Ok thank you!