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Airports / Illinois / DEC

Decatur (DEC) TSA wait times

Security at Decatur Airport is running about 4 minutes in the standard lane, and usually runs 5 to 10 minutes at 11 pm on a Sunday. PreCheck is moving in about 3 minutes.DEC security is about 4 minutes now, usually 5 to 10 at this hour. Busiest 7 to 9 AM and 4 to 6 PM.

4min

Standard lane, right now

Security wait, last 7 hours

Usually 5 to 10 minutes now

Down 4 min since 5 pm.

Security lanes, right now
Standard4 min
PreCheck3 min
CLEAR2 min
When should you leave home?
Add your flight and address, and we turn this wait into a time to walk out the door.

When is DEC security busiest?

The left chart shows today's security wait hour by hour, built from DEC's own departure schedule. The right ranks the days of the week by how long the wait gets. The calmest window is None; plan around the 7 to 9 AM and 4 to 6 PM rushes.Calmest None. Plan around the morning and evening rushes.

Security wait today, hour by hour
9m4m0m
midnight6 am noon6 pm11 pm
Typical security wait by day
Sun
9 min
Mon
9 min
Wed
9 min
Thu
9 min
Fri
9 min
Sat
7 min
Tue
6 min

Departures, the next few hours

HourDeparturesTypical security wait
11 pm (Now) 0 flights 4 min
midnight 0 flights 4 min
1 am 0 flights 4 min
2 am 0 flights 4 min
3 am 0 flights 4 min

Standard, PreCheck, and CLEAR security lanes

StandardFree, nothing to sign up for
4 min
PreCheck$85 for 5 years
3 min
CLEAR$219 a year, identity check
2 min
Airlines flying from DEC flights per day
SkyWest regional 2 flights

Regional carriers fly these routes under the mainline brands, so a SkyWest flight shows on your ticket as Delta, United, American or Alaska.

Airports near DEC busiest hour
CMIChampaign/Urbana
University of Illinois Willard· 17 mi
9 min
SPISpringfield
Abraham Lincoln Capital· 22 mi
9 min
BMIBloomington/Normal
Central Illinois Rgnl at Bloomington-Normal· 22 mi
9 min
PIAPeoria
General Wayne A. Downing Peoria Intl· 36 mi
9 min
BLVBelleville
Scott AFB/Midamerica· 52 mi
9 min

Every US airport on one board ›

DEC security, common questions

How early should I get to DEC?

For a domestic flight out of Decatur, plan to be inside the terminal about an hour before departure, and about an hour for an international one. That covers a 5 to 15 minute checkpoint queue at the Sunday peak plus the walk to the gate. Outside the peak you can safely trim it; the calculator above works it out from your actual departure time.

What is the busiest time at DEC security?

Sunday around 8 am, when 0 departures' worth of passengers are converging on the checkpoint at once. The calmest hour with real traffic is Saturday at 4 pm, at roughly 4 minutes.

Is TSA PreCheck worth it at DEC?

At the Sunday peak it turns a 5 to 15 minute queue into something closer to 3 minutes. Over a five year membership that is worth it if you fly more than about three round trips a year through an airport this busy. The trusted traveler calculator prices it against your own flying.

When does security open at DEC?

Decatur Airport does not publish checkpoint opening hours in any national feed, so we will not invent them. What the schedule does show is that the first departures leave around 5 am, and checkpoints generally open about two hours before the first flight of the day.

Tips for DEC, from the data

  • Fly between None if you can. That window sits between the two daily rushes, when the checkpoint is at its calmest.
  • The 8 am hour is the single busiest today, at about 9 minutes in the standard lane.
  • SkyWest runs 100% of departures here, so its checkpoints and gates carry the most traffic. Which airline you fly is what decides your terminal.

Modeled from the flight schedule, not measured. How these numbers are made.