What is the TSA wait at DEC right now?
No live security wait, and no historical wait, for Decatur Airport (DEC). We will not estimate one.
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Decatur Airport TSA wait times
DEC · KDEC · Decatur, Illinois
Security wait
No live security wait, and no historical wait, for Decatur Airport (DEC). We will not estimate one.
PreCheck
PreCheck lanes are not in our historical feed for this airport.
CLEAR
CLEAR is not shown. We are not using a CLEAR source.
Departure delays
Historical on-time performance. Not a live delay.
79%
On-time departures, September 2025 through August 2026. A departure is on time when it left less than 15 minutes late.
Flights out of Decatur Airport left on time 79% of the time from September 2025 through August 2026. The largest share of delay minutes was late-arriving aircraft (40%). That is a share of delay minutes, not a share of flights. The average delay among departures that were 15 minutes or more late was 138 minutes. 5% of scheduled flights were cancelled.
| Cause | Delay minutes | Share of delay minutes |
|---|---|---|
| late-arriving aircraft | 7,983 | 40% |
| the airline | 6,838 | 35% |
| the national airspace system | 3,300 | 17% |
| weather | 1,625 | 8% |
When to be at the airport
TSA's published guidance is to arrive at the airport 2 hours before a domestic departure and 3 hours before an international departure. That is guidance, not a measured security wait.
Nearby airports
- University of Illinois Willard Airport CMI · Savoy34 mi
- Abraham Lincoln Capital Airport SPI · Springfield43 mi
- Central Illinois Regional Airport at Bloomington-Normal BMI · Bloomington/Normal44 mi
- General Wayne A. Downing Peoria International Airport PIA · Peoria72 mi
- Scott AFB/Midamerica Airport BLV · Belleville103 mi
Distances are straight-line miles.
Airport details
- Runways
- 3
- Longest runway
- 06/24, 8,496 ft
- Longest runway width
- 150 ft
- Longest runway surface
- ASPH-CONC
- Longest runway lighting
- HIGH
- Elevation
- 681.9 ft
- Control tower
- Yes
- CY2024 enplanements
- 12,747
- Facility use
- Public
- Ownership
- Public
- Part 139 certificate code
- I A
- Fuel
- 100LL,A
- Last inspection
- 2025/11/03
FAA facility record date 2026/10/01. Runways: BTS NTAD Runways. Facility facts: BTS NTAD Aviation Facilities. Enplanements: FAA CY2024 commercial service.
Questions
Does TSACheck have a live security wait for DEC?
No. TSACheck has no live feed and no historical wait for Decatur Airport (DEC).
How often do flights leave DEC on time?
Flights out of Decatur Airport left on time 79% of the time from September 2025 through August 2026. The largest share of delay minutes was late-arriving aircraft (40%). That is a share of delay minutes, not a share of flights. The average delay among departures that were 15 minutes or more late was 138 minutes. 5% of scheduled flights were cancelled.
How early should I get to DEC?
TSA's published guidance is to arrive at the airport 2 hours before a domestic departure and 3 hours before an international departure. That is guidance, not a measured security wait.
Which airports are near DEC?
The nearest airports in this list are University of Illinois Willard Airport (CMI), 34 straight-line miles; Abraham Lincoln Capital Airport (SPI), 43 straight-line miles; Central Illinois Regional Airport at Bloomington-Normal (BMI), 44 straight-line miles; General Wayne A. Downing Peoria International Airport (PIA), 72 straight-line miles; Scott AFB/Midamerica Airport (BLV), 103 straight-line miles.