BWI Security: Low Averages Mask Extreme Peaks in May
A review of the security screening data from Baltimore/Washington International Thurgood Marshall Airport (BWI) for May 2026 highlights the classic story of how averages can be deceiving. While the overall average wait time was just 2 minutes, identical to April’s performance, this figure conceals the reality of significant delays at specific checkpoints, with one passenger facing a peak wait of 91 minutes.
Despite this extreme outlier, the broader picture shows efficient processing, with 99% of waits officially recorded as being under the 15-minute mark. The typical daily peak for TSA lines stood at a more manageable 20 minutes. The busiest single day of the month was 21st May, though even then, the average wait only climbed to 3 minutes.
Checkpoint Performance Comparison
The passenger experience varied dramatically depending on the specific security checkpoint used. The month’s longest wait was recorded at Checkpoint B General, which saw the extreme 91-minute delay. Other checkpoints also experienced notable, albeit shorter, peak times.
- Checkpoint B General: Peak wait of 91 minutes
- Checkpoint DE General: Peak wait of 34 minutes
- Checkpoint DE Priority: Peak wait of 17 minutes
- Checkpoint A General: Peak wait of 16 minutes
In contrast, travelers using other lines had a much smoother journey. The peak wait at Checkpoint B Priority was just 3 minutes, while those at Checkpoint BC PreCheck and Checkpoint BC Priority saw maximum waits of only 4 and 5 minutes respectively, demonstrating a significant advantage for those with access to expedited screening services.
Timing Your Trip Through BWI
Analyzing the flow of traffic throughout the day provides clear patterns for travelers looking to avoid queues. The data shows that the airport’s active hours typically run from 5 am to 9 pm. The busiest time to travel through BWI security in May was the early morning rush at 5 am, which saw an average wait of 3 minutes. Other busy periods with the same 3-minute average occurred in the afternoon at 1 pm, 2 pm, 5 pm, and 6 pm. The quietest time was 12 am, with an average wait of just 1 minute.
For the most seamless experience at BWI security, our data suggests travelers should aim to clear security outside of the main peak times. Avoiding the 5 am morning rush and the busy afternoon windows between 1 pm and 2 pm, and again from 5 pm to 6 pm, offers the best chance of a swift journey through the airport.