At British Airways ALG Terminal welcome to British Airways! From beginning to end, we are committed to making your trip unforgettable. You may easily get ready for your trip with our check-in desks open 24 hours prior to your flight. To guarantee a seamless check-in and security procedure, it is advisable to arrive at least three hours prior to your overseas trip. Snuggle up in our luxurious lounges and unwind with complimentary services and refreshments, if you qualify. Download your boarding permit and check in online up to 24 hours before departure to save time at the airport and for enhanced convenience.