The Baltimore/Washington International Airport (BWI) Check-In offers a smooth and efficient start to your journey with multiple options including online check-in, self-service kiosks, and traditional airline counters. Travelers are advised to arrive at least 2 hours before domestic and 3 hours before international flights to allow time for security and baggage drop. BWI provides clear signage, helpful staff, and accessible facilities for all passengers. Curbside check-in is available for select airlines, adding convenience. Ensure you carry valid identification, boarding pass, and travel documents. Real-time flight updates and airline apps further streamline the check-in process.