How early should I get to CMH?
Ninety minutes to two hours before departure covers most domestic flights out of CMH.
Ninety minutes to two hours before departure covers most domestic flights out of CMH.
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A maps app covers the drive to CMH. Bag drop, security, and the walk to your gate usually take longer, and they are the steps people misjudge.
Here is the same plan drawn to scale. The first block is travel; the next two are the airport. A checked bag grows one, a far gate grows the other.
Front door to boarding: 2hr 5min
Ninety minutes to two hours before departure covers most domestic flights out of CMH. Checking a bag or flying at a peak hour puts you toward the early end of the range.
Columbus asks for ninety minutes domestic and two hours international, one of the few airports its size that says so in writing, and the average checkpoint wait it publishes is usually under a few minutes.
The reason to add margin right now is outside the building: CMH Next, the new terminal going up beside the current one, has rerouted the approach roads and the garage exit, and the airport itself says to allow extra time for the drive in. Each concourse has its own checkpoint and they close at 8:30 PM, so a late departure needs you through before then.
One checkpoint per concourse (A, B and C), each opening at 4 AM and closing at 8:30 PM, with PreCheck and CLEAR at each. There is no cross-concourse connection past security, so the checkpoint is decided by your gate, not your preference. The gates are close behind each checkpoint, which is why the walk step here is short.
The plan allows 20 minutes for a standard lane on a busy but normal morning. With TSA PreCheck, that drops to 10 minutes. A checked bag lengthens the one before it.
The airport is east of downtown off I-670, a short drive from most of the city and the reason a fifteen-minute plan works outside rush hour. There is no rail; COTA's AirConnect bus serves the terminal but is a city route rather than an airport link.
The garage is attached to the terminal and a walk in, the shuttle lots run every fifteen to eighteen minutes, and the rental car center is off the terminal loop, reached by a purple shuttle from the arrivals curb, so the return is a shuttle ride. Construction has moved the approach: follow the signs rather than memory.
For live waits, parking, and terminal maps, check the official CMH site.
Terminals, checkpoints and transit change; the official CMH site is the live source.
Ninety minutes to two hours before departure covers most domestic flights out of CMH. Checking a bag or flying at a peak hour puts you toward the early end of the range. The plan above works back from there through security, bag drop, parking and the drive to a leave-by time.
The plan allows 20 minutes for a busy-but-normal standard lane. With TSA PreCheck it drops to 10 minutes, and you can edit either one to what you actually see. A checked bag lengthens the step before it. Checkpoint detail for CMH is under Security at CMH above.
Earlier than for a domestic one. International boarding starts 45 minutes before departure instead of 30, which pulls every step earlier. Use the airline desk for bags: documents get checked and counters often close an hour out. That also covers lap infants, unaccompanied minors, and oversized bags. If your boarding pass names a boarding time, match that.
Work backward from departure: boarding, time at the gate, the walk, security, bag drop, parking, then the drive (15 minutes in the default plan). Replace the drive with your own route. The leave-by moment is the first travel row, "Drive to CMH" by default.
Taking the train instead? The Amtrak station pages use the same kind of plan without security. Flying from somewhere not listed? The airport leave time calculator has the same rows with your own numbers, and the wake-up time calculator runs it back to the alarm.
Start the plan in the app, and the Lock Screen and Dynamic Island show the time left, with a bar that fills as each step passes.
Glance at it in the terminal without opening the app.
Every step also gets its own alert, and sharing the plan gives whoever is driving the same leave time, with alerts on their phone.
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