SDFLouisville
When is TSA security busiest at SDF?
TSA's counts over 175 days, 22 March to 24 October 2026, put SDF's busiest hour at 5 am, with the counts falling away after 4 pm. Louisville (SDF) has no live wait time on waittimes.io, so this page carries no number for right now.
How busy SDF 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 | 10a | 12p | 2p | 4p | 6p | 7 pm, now | 8p | 10p | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SDF-A |
Tap a cell for its count.
Quiet for this checkpointIts busiest hourclosed or no count
On the counted days SDF screened passengers from 3 am to 7 pm. Across SDF the busiest hour is 5 am and the counts fall away after 4 pm. SDF-A peaks at 5 am. TSA counts people, not minutes, so this shows when a checkpoint is loaded, not how long you will stand in it.
Which day SDF is busiest
Sunday is SDF's busiest day of the week, about 8,800 people screened on an average one, 54 percent more than Tuesday, the quietest.
| Rank | Day | People a day | Days counted |
|---|---|---|---|
| 1 | Sunday | 8,815 | 23 |
| 2 | Thursday | 8,076 | 23 |
| 3 | Friday | 7,865 | 23 |
| 4 | Monday | 7,702 | 23 |
| 5 | Wednesday | 6,447 | 25 |
| 6 | Saturday | 6,197 | 23 |
| 7 | Tuesday | 5,713 | 23 |
People screened at SDF 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 SDF is busiest
October was SDF's busiest month in TSA's counts, about 8,300 people a day, 32 percent more than August, the quietest. It is also the latest month counted.
| Rank | Month | People a day | Days counted |
|---|---|---|---|
| 1 | October | 8,331 | 17 |
| 2 | July | 7,917 | 13 |
| 3 | June | 7,687 | 13 |
| 4 | May | 7,609 | 31 |
| 5 | September | 7,405 | 30 |
| 6 | April | 6,827 | 30 |
| 7 | March | 6,463 | 10 |
| 8 | August | 6,307 | 31 |
People screened at SDF 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 SDF 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 Friday 22 May, 8,650 people, 12 percent above the Fridays around it. Sunday 24 May was the lightest for its day of the week, 36 percent below the Sundays around it.
Labor Day 2026
Thursday 3 to Tuesday 8 September: the busiest day was Friday 4 September, 8,504 people, 10 percent above the Fridays around it. Sunday 6 September was the lightest for its day of the week, 35 percent below the Sundays around it.
Questions people ask
How busy is SDF airport today?
Louisville has no live wait time on waittimes.io, so there is no number for today. By TSA's counts 7 pm is usually a quiet hour at SDF, about 110 people an hour across its checkpoints against 720 at the 5 am peak. On a normal day SDF screens about 7,200 people, 68th of the 432 airports TSA counts; its largest checkpoint is SDF-A.
When is TSA security at SDF quietest?
Over the 175 counted days, 22 March to 24 October 2026, SDF checkpoints screened the most people at 5 am. Between the rushes the counts are lowest at 7 am, and they fall away after 4 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 SDF?
Over the 175 counted days, 22 March to 24 October 2026, SDF screened passengers from 3 am to 7 pm. These are the hours TSA counted people, not SDF's published checkpoint hours. Check the airport's own page before an early flight.
What is the busiest day of the week at SDF?
Sunday is SDF's busiest day of the week, about 8,800 people screened on an average one, 54 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 SDF?
October was SDF's busiest month in TSA's counts, about 8,300 people a day, 32 percent more than August, the quietest. It is also the latest month counted. 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 SDF get on a holiday weekend?
Memorial Day 2026, Thursday 21 to Tuesday 26 May: the busiest day was Friday 22 May, 8,650 people, 12 percent above the Fridays around it. Sunday 24 May was the lightest for its day of the week, 36 percent below the Sundays around it. Labor Day 2026, Thursday 3 to Tuesday 8 September: the busiest day was Friday 4 September, 8,504 people, 10 percent above the Fridays around it. Sunday 6 September was the lightest for its day of the week, 35 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.
Does SDF publish a live TSA wait time?
Not one waittimes.io reads, so this page carries no number for right now and never predicts one. The national page ranks the 23 airports whose live number waittimes.io reads.
Does PreCheck have a shorter line at SDF?
This page has no lane-by-lane wait time for SDF, so there is no PreCheck number to compare. TSA's counts are per checkpoint and do not separate PreCheck from standard lanes; the map above shows when each checkpoint is loaded, whichever lane you join.
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, BWI, 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
- There is none for Louisville on waittimes.io.
- 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.