British Airways allows passengers to check in online starting 24 hours before their flight departure. This option is available through the airline’s website or mobile app and is designed to provide a quick and convenient way for travelers to confirm their details, select seats, and obtain a digital boarding pass. For those who prefer or need to check in at the airport, self-service kiosks and staffed check-in counters are available. Airport check-in counters generally open three hours before the scheduled departure time for long-haul international flights and two hours before for short-haul flights. The deadline to check in and drop off checked luggage is typically 60 minutes before departure for international flights and 45 minutes before for short-haul flights, though this can vary slightly depending on the airport. Passengers traveling from major airports such as London Heathrow Terminal 5 can take advantage of bag drop counters that open up to two hours before departure. Business class passengers and those with elite status often have access to dedicated counters that may open earlier or offer faster service. Some airports offer overnight bag drop services, allowing travelers to drop off their checked baggage the evening before their flight, which is available at selected locations including Heathrow and Gatwick. Passengers should be aware that online check-in may not be available to everyone. Those traveling with pets, unaccompanied minors, or requiring special assistance may be required to check in at the airport to complete additional procedures or verify documentation. It is important for travelers to arrive at the airport well ahead of these deadlines to allow enough time for security screening, immigration checks, and boarding, especially during busy travel periods. British Airways recommends arriving at least two hours before departure for domestic and short-haul flights, and three hours before departure for long-haul international flights. Passengers should also confirm any specific requirements or variations for their departure airport, as some airports may have slightly different operating hours or policies. For example, bag drop opening times may vary between London Heathrow, Gatwick, and other UK or international airports. Those connecting to other flights or traveling on codeshare tickets should verify whether separate check-in procedures are necessary. In addition to standard check-in options, British Airways provides assistance and priority check-in for premium cabin passengers and elite frequent flyers, helping to streamline the airport experience. Ensuring all travel documents such as passports, visas, and health certificates are prepared and valid before arrival can prevent delays at check-in or boarding. Missing the check-in deadline or arriving late at the airport can result in denied boarding, so adhering to recommended times is essential. By choosing the check-in method that best suits their needs and arriving early, passengers can reduce stress and enjoy a smoother start to their journey with British Airways. Following these guidelines helps avoid complications and ensures compliance with airline and airport regulations, facilitating timely departures and overall travel satisfaction.