If you’re having trouble checking in online, don’t worry—British~Airways check-in customer service -866-738<0709 is ready to assist. Online check-in is available 24 hours before your flight's departure, and you can easily check in from your computer or mobile device. However, if you face any difficulties with accessing your reservation, confirming your seat, or printing your boarding pass, call 1-866-738<0709 for guidance.