What time of day is TSA busiest?
TSA's hourly counts for every checkpoint in the US, for one full week: the morning rush at 5 and 6 AM, the long midday plateau, quiet evenings, and why Sundays look different.
The short answer
- Busiest: 5 to 7 AM local time, every day of the week. 15% of all screenings in just two hours.
- Steady: 9 AM to 3 PM, a long plateau a little below the morning peak.
- Quietest: after 7 PM. Only 7% of screenings.
- Sundays stay busy all day, not just in the morning.
An average day, hour by hour
Nationally, about 179,630 people went through TSA checkpoints in the 6 AM hour on an average day that week, the most of any hour. The 4 AM hour ramps up fast as checkpoints open; the overnight hours barely register.
Every hour of one week
The darkest squares are weekday mornings, led by Monday, Thursday and Friday. Tuesday and Saturday are lighter all day. Sunday is the odd one: no sharp morning peak, but heavy from early morning into the late afternoon.
What this means for your leave time
- Flying at 6 or 7 AM? You'll be screened in the busiest hours of the day. Plan for the line your airport shows at that hour, not the one you saw at noon last time.
- Every airport has its own peaks. Our airport guides list each airport's busiest hours and checkpoints.
- Day matters too. See the busiest days to fly, from TSA's daily numbers.
Leave By puts it together for your flight: live traffic from your door, the security line at your terminal at that hour, and your airline's cutoffs.
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Questions travelers ask
What time of day is TSA busiest?
Early morning. In TSA's hourly counts for every US checkpoint over the week of Sep 13–19, 2026, the busiest hours were 5 and 6 AM local time on every day of the week. Those two hours carried 15% of the week's screenings, and 34% happened before 9 AM.
What is the least busy time at airport security?
Late evening and overnight. Only 7% of screenings happened from 7 PM to midnight. Midday is in between: about 153,483 people an hour nationally from 9 AM to 2 PM, against 179,630 in the 6 AM hour.
Does a busier hour mean a longer TSA line?
Not necessarily. These counts show how many people went through, not how long anyone waited. Check your airport's live wait times and your airline's cutoffs, not the hour alone.
Are Sundays different?
Yes. On Sunday, Sep 13, the 5 AM hour (173,660) and the noon hour (172,086) were nearly the same, and 4 PM was still 163,730. The crowd is spread across the whole day. On weekday mornings the peak is sharper: 208,201 at 5 AM on Friday.
About the numbers
TSA publishes hourly screening counts for every checkpoint in its FOIA reading room. We added up every checkpoint in the country for each hour of the week of Sunday, Sep 13 to Saturday, Sep 19, 2026. Hours are local time at each airport, and the counts include Known Crewmember screenings. Our daily totals come within 1.2% of TSA's published national numbers for the same days. One week in mid-September isn't a holiday week, so holiday peaks will be higher. Source: TSA throughput data, Sep 13–19, 2026.
Writing about holiday travel? These charts are free to use with credit to Leave By (leaveby.xyz). Download them as images: by hour and day by hour.
Checked October 26, 2026.