CMH Today
Decent day. Departures at 75%. Early morning flights ran 17 points better than evening. Fly 5am - 9am if you can. That window has been running at 94%.
What This Means for You
Mostly normal at CMH. 75% on-time means roughly 1 in 4 flights is late. If you have a tight connection, add buffer time. Afternoon departures tend to stack up.
If you can choose your departure time: early morning flights (5am - 9am) run at 94%. Evening (6pm - 10pm) drops to 77%. That is a 17-point difference from the same airport on the same day.
Cleveland Hopkins International Airport (CLE) is 112 miles away and running 78% today. If your route is available from both airports, CLE is the better bet right now.
CMH Flight Board
Live departures and arrivals at John Glenn Columbus International Airport.
| Status | Airline | Flight | Destination | Sched | Updated | Gate |
|---|---|---|---|---|---|---|
Pick Your Window
Early Morning vs Evening is a 17-point swing at CMH. The early morning block runs at 94%. If you have any say in your departure time, this is the biggest thing you can control.
Through the Day
Morning held up fine at 89%. Hit 14% around 11pm, peaked at 93% around 8am. Currently at 75%, well below the morning numbers. A 79-point swing from best to worst today.
vs Last Week
Down 6 points from last week (79% vs 85%). Arrivals roughly the same. Thu was the worst day, Sat the best.
The Bigger Picture
CMH has been bouncing between 0% and 90%. Best day was Feb 15 at 90%. Worst was Feb 19 at 0%. The norm is 74-80%, which is just how CMH runs. Today is right in line with the average.
About CMH Delays
John Glenn Columbus International Airport (CMH) is currently experiencing moderate delays with 75% on-time departures and 75% on-time arrivals. This data updates every 5 minutes from FAA sources.
John Glenn Columbus International Airport has averaged 79% on-time departures this week, making it moderately reliable. Performance varies by time of day and weather conditions.
John Glenn Columbus International Airport is one of 179 FAA-monitored US airports with real-time delay tracking. Data includes departure and arrival on-time percentages, updated every 5 minutes, with historical trends available for the past 90 days.
Nearby alternatives include DAY (James M. Cox Dayton International Airport), CAK (Akron Canton Regional Airport) and CLE (Cleveland Hopkins International Airport). When CMH is experiencing delays, these airports may offer better on-time performance.
Early morning departures from John Glenn Columbus International Airport typically have the highest on-time rates. Delays tend to accumulate throughout the day as cascading effects from earlier disruptions compound. Check the 24-hour trend chart above for today's pattern.