What is the TSA wait at CMH right now?
Observed security history for John Glenn Columbus International Airport (CMH) is listed by hour. It is not a live reading. The current hour is chosen in the browser from that table.
Typical history
John Glenn Columbus International Airport TSA wait times
CMH · KCMH · Columbus, Ohio
Security wait
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The current hour is filled from the observed-hour table in this browser.
Observed security history for John Glenn Columbus International Airport (CMH) is listed by hour. It is not a live reading. The current hour is chosen in the browser from that table.
Typical wait by hour
On Sundays, the quietest observed standard-lane hours are 11am (sample-weighted median 1 minute) and 12am (sample-weighted median 2 minutes). The busiest observed hours are 1am (sample-weighted 75th percentile 2 minutes) and 2am (sample-weighted 75th percentile 2 minutes). Hours with no readings are left out, not treated as zero.
Standard lane only. Average and 75th percentile are sample-weighted from observed history. A gap means that hour had no readings.
PreCheck
This airport's historical feed has no PreCheck lane readings.
CLEAR
CLEAR is not shown. We are not using a CLEAR source.
Departure delays
Historical on-time performance. Not a live delay.
81%
On-time departures, September 2025 through August 2026. A departure is on time when it left less than 15 minutes late.
Flights out of John Glenn Columbus International Airport left on time 81% of the time from September 2025 through August 2026. The largest share of delay minutes was late-arriving aircraft (36%). 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 76 minutes. 2% of scheduled flights were cancelled.
The highest on-time month was September 2025 (85%). The lowest was December 2025 (73%).
| Cause | Delay minutes | Share of delay minutes |
|---|---|---|
| late-arriving aircraft | 236,979 | 36% |
| the airline | 198,975 | 30% |
| the national airspace system | 193,961 | 30% |
| weather | 24,669 | 4% |
| security | 534 | 0% |
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
- Rickenbacker International Airport LCK · Columbus13 mi
- James M. Cox Dayton International Airport DAY · Dayton71 mi
- Mid Ohio Valley Regional Airport PKB · Parkersburg (Williamstown)89 mi
- Akron Canton Regional Airport CAK · Akron99 mi
- Cincinnati Municipal Airport Lunken Field LUK · Cincinnati102 mi
Distances are straight-line miles.
Airport details
- Runways
- 2
- Longest runway
- 10R/28L, 10,114 ft
- Longest runway width
- 150 ft
- Longest runway surface
- ASPH
- Longest runway lighting
- HIGH
- Elevation
- 815 ft
- CY2024 enplanements
- 4,387,395
- Facility use
- Public
- Ownership
- Public
- Part 139 certificate code
- I C
- Fuel
- 100,A1+
- Airframe repair
- MAJOR
- Powerplant repair
- MAJOR
- Last inspection
- 2025/08/13
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 CMH?
A live figure is shown only when the stored airport feed is fresh. John Glenn Columbus International Airport (CMH) also has observed history. A stored value that is too old is not shown as live.
How often do flights leave CMH on time?
Flights out of John Glenn Columbus International Airport left on time 81% of the time from September 2025 through August 2026. The largest share of delay minutes was late-arriving aircraft (36%). 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 76 minutes. 2% of scheduled flights were cancelled.
How early should I get to CMH?
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 CMH?
The nearest airports in this list are Rickenbacker International Airport (LCK), 13 straight-line miles; James M. Cox Dayton International Airport (DAY), 71 straight-line miles; Mid Ohio Valley Regional Airport (PKB), 89 straight-line miles; Akron Canton Regional Airport (CAK), 99 straight-line miles; Cincinnati Municipal Airport Lunken Field (LUK), 102 straight-line miles.