When Should I Leave for Baltimore/Washington International Thurgood Marshall Airport?
Real-time calculator for Baltimore, MD (BWI) — live traffic, TSA waits, all transport modes.
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Frequently Asked Questions — BWI
How early should I arrive at BWI for a domestic flight?⌄
For domestic flights at Baltimore/Washington International Thurgood Marshall Airport, we recommend arriving at least 90 minutes before departure. During peak hours or holidays, allow 2 hours. TSA lines at BWI can be unpredictable — use the WhenToLeave calculator above for a personalised recommendation based on live traffic from your address.
How early should I arrive at BWI for an international flight?⌄
For international departures at Baltimore/Washington International Thurgood Marshall Airport, plan to arrive 3 hours before your scheduled departure time. International check-in closes earlier, and customs documentation and additional security screening add time. Always check your airline's specific check-in deadline.
What is the TSA wait time at BWI right now?⌄
TSA wait times at Baltimore/Washington International Thurgood Marshall Airport vary significantly by time of day and season. Early morning (5–7 AM) and mid-afternoon (2–4 PM) are typically the shortest waits. The WhenToLeave calculator pulls live TSA wait data when available. You can also check the MyTSA app for real-time estimates.
How long does it take to walk to the gate at BWI?⌄
Gate walk times at Baltimore/Washington International Thurgood Marshall Airport average around 10 minutes after clearing security, but can be longer depending on your terminal and gate assignment. With 5 terminals, the distance can vary substantially — gates at the far end of a concourse may add 10–15 extra minutes.
What is the best way to get to BWI from Baltimore?⌄
Getting to Baltimore/Washington International Thurgood Marshall Airport depends on where you are coming from and the time of day. Driving and rideshare are the most flexible options, but parking costs and traffic — especially during rush hour — can add significant time. Public transit, where available, offers a predictable journey time. Use the WhenToLeave calculator to compare all modes side-by-side from your specific address.
About BWI — Baltimore/Washington International Thurgood Marshall Airport
Baltimore/Washington International Thurgood Marshall Airport (BWI) is one of the busiest commercial airports in the United States, serving millions of travelers each year through Baltimore, MD.
Navigating BWI takes planning — the airport spans multiple terminals, and gate-to-gate walks average 10 minutes after clearing security.
Baltimore is located in MD, and BWI sits at coordinates 39.18°N, 76.67°W.
Plan for an average 10-minute walk from security to your gate at BWI. Gates at the far end of concourses may add extra time — always check your boarding pass early.
TSA provides live wait time data for BWI checkpoints. The WhenToLeave calculator pulls this data in real time to build your personalized departure time.
BWI offers scheduled commercial service, connecting Baltimore to destinations across the US and internationally.