If you’re going to fly out of Philadelphia International Airport, head over on a Tuesday, Wednesday or Sunday from 10 to 11 p.m.  Average wait in the security line is a whopping one minute, writes Natalie B. Compton for The Washington Post.

Worst time? Fridays from 11 a.m. to noon. Expect a 32 minute wait.

Average wait time was 13.3 minutes, according to a study from Upgraded Points.

The study looked at data on Transportation Security Administration (TSA) wait times at America’s 25 busiest airports in 2018.

The slowest airport security wait time is Newark Liberty International (EWR), with an average of 23.1 minutes.

The country’s fastest was Salt Lake City International (SLC), with an average wait time of 9.1 minutes.

Wait times fluctuate so much because no two airports are the same, according to TSA press secretary Jenny Burke.

“There’s an adage, ‘If you’ve seen one airport, you’ve seen one airport,’ because the profile, the footprint, is different at all the checkpoints,” Burke says.

Airports that serve more business travelers have faster lines because passengers are accustomed to security practices. The opposite is true for airports that serve more leisure travelers.

Read more about airport wait times here.

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