BWIBaltimore Washington
How long is the TSA security line at BWI right now?
At 10:39 am Eastern every open standard lane at BWI is 10 minutes or under. The longest standard line is Checkpoint DE, 7 min. Checkpoint BC is moving at 1 min.
Wait time by checkpoint
| Checkpoint | Standard | PreCheck |
|---|---|---|
| Checkpoint A | 3min | 1min |
| Checkpoint B | 5min | 5min |
| Checkpoint BC | 1min | 1min |
| Checkpoint DE | 7min | 4min |
Read from bwiairport.com at 17 minutes ago, next read in 2
How busy BWI security usually is
People screened per hour at each checkpoint, averaged over 175 days of TSA counts, 22 March to 24 October 2026. Green is that checkpoint's quiet hours, red its peak. Find your checkpoint and look along the row for green.
| Checkpoint | 4a | 6a | 8a | 10 am, now | 12p | 2p | 4p | 6p | 8p | 10p | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Checkpoint A | ||||||||||||||||||||
| Checkpoint B | ||||||||||||||||||||
| Checkpoint C | ||||||||||||||||||||
| Checkpoint D/E |
Tap a cell for its count.
Quiet for this checkpointIts busiest hourclosed or no count
On the counted days BWI screened passengers from 3 am to 9 pm. Across BWI the busiest hour is 5 am and the counts fall away after 6 pm. Checkpoint B and Checkpoint D/E screen 69 percent of the people TSA counts at BWI, Checkpoint B alone 35 percent. The busiest hour at Checkpoint B is 7 am, 2 hours after BWI's. Every checkpoint peaks before noon. TSA counts people, not minutes, so this shows when a checkpoint is loaded, not how long you will stand in it.
Which day BWI is busiest
Thursday is BWI's busiest day of the week, about 29,000 people screened on an average one, 44 percent more than Tuesday, the quietest.
| Rank | Day | People a day | Days counted |
|---|---|---|---|
| 1 | Thursday | 29,206 | 23 |
| 2 | Friday | 27,792 | 23 |
| 3 | Sunday | 27,078 | 23 |
| 4 | Monday | 24,981 | 23 |
| 5 | Wednesday | 23,003 | 25 |
| 6 | Saturday | 21,306 | 23 |
| 7 | Tuesday | 20,237 | 23 |
People screened at BWI on an average day of each kind, from TSA's counts, 22 March to 24 October 2026, with the days around each holiday left out.
Which month BWI is busiest
July was BWI's busiest month in TSA's counts, about 28,000 people a day, 19 percent more than September, the quietest. October, the latest month counted, ran 11 percent below July.
| Rank | Month | People a day | Days counted |
|---|---|---|---|
| 1 | July | 28,413 | 13 |
| 2 | October | 25,281 | 17 |
| 3 | March | 25,094 | 10 |
| 4 | June | 24,916 | 13 |
| 5 | August | 24,908 | 31 |
| 6 | May | 24,659 | 31 |
| 7 | April | 23,927 | 30 |
| 8 | September | 23,834 | 30 |
People screened at BWI on an average day of each month, holidays included, from TSA's counts, 22 March to 24 October 2026. March, June, July, and October rest on 10, 13, 13, and 17 counted days.
How BWI ran over the holidays
Each day around a holiday against the same day of the week in the three weeks either side, so the season does not read as the holiday. Thanksgiving and Christmas 2026 are not in TSA's counts yet; they run to 24 October 2026.
Memorial Day 2026
Thursday 21 to Tuesday 26 May: the busiest day was Thursday 21 May, 33,792 people, 15 percent above the Thursdays around it. Sunday 24 May was the lightest for its day of the week, 21 percent below the Sundays around it.
Labor Day 2026
Thursday 3 to Tuesday 8 September: the busiest day was Friday 4 September, 29,899 people, 12 percent above the Fridays around it. Sunday 6 September was the lightest for its day of the week, 27 percent below the Sundays around it.
Questions people ask
How busy is BWI airport today?
At 10:39 am Eastern every open standard lane at BWI is 10 minutes or under. The longest standard line is Checkpoint DE, 7 min. By TSA's counts 10 am is usually a middling hour at BWI, about 1,400 people an hour across its checkpoints against 2,000 at the 5 am peak. On a normal day BWI screens about 25,000 people, 30th of the 432 airports TSA counts; its largest checkpoint is Checkpoint B, with 35 percent of them.
Does PreCheck have a shorter line at BWI?
Right now PreCheck lanes at BWI read 1 to 5 min. Standard lanes read 1 to 7 min. PreCheck is open at Checkpoint A, Checkpoint B, Checkpoint BC and Checkpoint DE; check the sign above before walking to one.
Which BWI checkpoint is fastest right now?
At 10:39 am Eastern the shortest standard line is at Checkpoint BC, 1 min. The sign above lists every checkpoint and lane the airport publishes, longest and shortest alike.
How current is this number?
BWI Marshall Airport publishes the BWI wait times at bwiairport.com and waittimes.io reads them every 10 minutes. The time on the sign is the last read, in Eastern time. A number older than 30 minutes says so, and a feed silent for 2 hours shows when it last published instead of a number. Nothing here is predicted.
When is TSA security at BWI quietest?
Over the 175 counted days, 22 March to 24 October 2026, BWI checkpoints screened the most people at 5 am. Between the rushes the counts are lowest at noon, and they fall away after 6 pm. Each row of the map above is one checkpoint scaled to its own peak, so its green hours are the ones to aim for. Counts say when a checkpoint is loaded, not how long the line is.
What time does TSA open at BWI?
Over the 175 counted days, 22 March to 24 October 2026, BWI screened passengers from 3 am to 9 pm. Checkpoint B and Checkpoint D/E open first and Checkpoint B runs latest. These are the hours TSA counted people, not BWI's published checkpoint hours. Check the airport's own page before an early flight.
What is the busiest day of the week at BWI?
Thursday is BWI's busiest day of the week, about 29,000 people screened on an average one, 44 percent more than Tuesday, the quietest. Averaged over 163 days of TSA counts, 22 March to 24 October 2026, with the days around each holiday left out.
Which month is busiest at BWI?
July was BWI's busiest month in TSA's counts, about 28,000 people a day, 19 percent more than September, the quietest. October, the latest month counted, ran 11 percent below July. Averaged over 175 days of TSA counts, 22 March to 24 October 2026. March, June, July, and October rest on 10, 13, 13, and 17 counted days.
How busy does BWI get on a holiday weekend?
Memorial Day 2026, Thursday 21 to Tuesday 26 May: the busiest day was Thursday 21 May, 33,792 people, 15 percent above the Thursdays around it. Sunday 24 May was the lightest for its day of the week, 21 percent below the Sundays around it. Labor Day 2026, Thursday 3 to Tuesday 8 September: the busiest day was Friday 4 September, 29,899 people, 12 percent above the Fridays around it. Sunday 6 September was the lightest for its day of the week, 27 percent below the Sundays around it. Each day is set against the same day of the week in the three weeks either side. Thanksgiving and Christmas 2026 are not in TSA's counts yet; they run to 24 October 2026.
Other airports
Every covered airport, ranked by its line right now, is on the national page, with the airports that have no live number here under it. The busiest airports by people screened lists every code TSA counts.
ATL, BOS, CLE, CLT, DAL, DCA, DFW, DTW, EWR, IAH, JAX, JFK, LGA, MCO, MIA, MSP, PHL, PHX, PIT, SEA, SFO, SLC
Where the numbers come from
- Wait times
- Published by BWI Marshall Airport at bwiairport.com. We read the page every 10 minutes and show the time of the last read. A reading older than 30 minutes is marked as such.
- Usual busyness
- TSA's own hourly passenger counts per checkpoint, published weekly in its FOIA reading room. This page uses 175 days of counts, 22 March to 24 October 2026. Public domain.
- Who reads them
- Arcane Digital, which runs waittimes.io, reads every feed every 10 minutes with its own collector and stores the time of each read. The day's reads are checked every night for a feed that has stopped or thinned, and one person reads that report the next morning. Nobody types a number in.
- What we never do
- Predict a wait in minutes, or show an old number as if it were current.
- Every feed
- How each one is read, the TSA counts and who to write to: the sources page.