Airport month record
CMHNOV
John Glenn Columbus International in November 2025
- Departures
- 3,641
- Month
- November 2025
- National, same month
- 79.4%
- Carriers
- 10
Historical statistics for November 2025, not live status or a forecast for this year’s November. For today’s conditions at CMH, see live FAA status.
CMH in November lands a B, level with the national rate of 79.4%. About one flight in five arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That is a workable record, not a spotless one. That rests on 3,641 flights, of which Southwest Airlines flew 1,056 at 81.7% on time.
Key figures
On time
79.9%
Arrivals under 15 minutes late, of 3,571 completed departures
Avg delay
77 min
Across delayed arrivals only, not all flights
Cancelled
1.81%
Nationally in November: 2.49%
Whole year
80.1%
CMH across all twelve months
These figures cover 3,641 departures from John Glenn Columbus International in November 2025. On time means an arrival less than 15 minutes after the scheduled gate time, the DOT's threshold, and the national comparison uses every US departure in the same month rather than the whole year.
Against the year
November next to CMH's other months
Against CMH's own year, November ran level with the twelve-month rate of 80.1%, which makes it number nine of twelve months, best first. Either side of it, October ran 81.1% on time and December 70.7%, so a trip moved by a few weeks would have landed in a worse stretch.
| Month | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| July 2025 | 3,933 | 73.3% | 79 min | 3.41% | C− |
| August 2025 | 3,758 | 82.1% | 68 min | 1.41% | B |
| September 2025 | 3,726 | 85.2% | 67 min | 0.51% | A+ |
| October 2025 | 4,031 | 81.1% | 67 min | 0.72% | B+ |
| November 2025 (this page) | 3,641 | 79.9% | 77 min | 1.81% | B |
| December 2025 | 3,567 | 70.7% | 75 min | 1.68% | C |
| January 2026 | 3,296 | 81.6% | 78 min | 6.28% | B− |
| February 2026 | 3,231 | 82.9% | 75 min | 2.72% | B |
| March 2026 | 4,010 | 76.4% | 86 min | 3.24% | B− |
| April 2026 | 3,713 | 84.2% | 72 min | 0.51% | B+ |
| May 2026 | 3,860 | 83.4% | 65 min | 1.22% | B |
| June 2026 | 3,876 | 81.0% | 78 min | 1.57% | B |
Departure window
The best time of day to leave CMH in November
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 24 points, against 3 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am1,005 flights89.1%
- 8am–11am578 flights85.5%
- 11am–2pm616 flights81.6%
- 2pm–5pm611 flights72.5%
- 5pm–8pm666 flights69.8%
- 8pm–5am165 flights65.0%
Scale runs 55% to 95%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 89.1% of the time, against 65.0% for the overnight window. That is 24 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5am–8am window is the busiest, with 1,005 flights scheduled in it.
Across the week, Wednesday is the strongest day at 89.3% on time and Sunday the weakest at 70.9%. 18 points is a smaller lever than departure hour, but it is free.
Carrier by carrier
Which airlines ran best at CMH in November
The two carriers here are closely matched: 3 points separate the best from the worst. At that spread, schedule and price are better tie-breakers than reliability. Sample sizes are shown so you can see which rows are worth weighing.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Republic Airways | 1,099 | 78.6% | 65 min | 2.64% | B |
| Southwest Airlines | 1,056 | 81.7% | 61 min | 1.04% | B |
| American Airlinesthin sample | 316 | 82.4% | 104 min | 1.27% | B |
| United Airlinesthin sample | 278 | 70.6% | 75 min | 2.16% | C |
| Delta Air Linesthin sample | 277 | 87.2% | 102 min | 1.08% | A |
| Envoy Airthin sample | 270 | 82.4% | 108 min | 1.11% | B |
| PSA Airlinesthin sample | 104 | 75.0% | 101 min | 3.85% | B− |
| Spirit Airlinesthin sample | 89 | 74.2% | 80 min | 0.00% | C+ |
| SkyWest Airlinesthin sample | 86 | 72.5% | 138 min | 6.98% | C− |
| Frontier Airlinesthin sample | 37 | 83.8% | 69 min | 0.00% | B+ |
No carrier stands out. Southwest tops the table at 81.7%, 3 points clear of the bottom, which is inside the range this kind of sample moves year to year.
Route by route
Busiest routes out of CMH in November
| Route | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| CMH to ORD · Chicago | 392 | 73.4% | 86 min | 4.08% | C− |
| CMH to LGA · New Yorkthin sample | 289 | 73.3% | 83 min | 0.35% | C+ |
| CMH to ATL · Atlantathin sample | 254 | 87.6% | 90 min | 1.18% | A |
| CMH to EWR · Newarkthin sample | 195 | 75.1% | 62 min | 7.18% | B− |
| CMH to MCO · Orlandothin sample | 185 | 83.7% | 60 min | 0.54% | B+ |
| CMH to DCA · Washingtonthin sample | 166 | 57.5% | 51 min | 3.61% | D− |
| CMH to CLT · Charlottethin sample | 162 | 86.3% | 115 min | 0.62% | A+ |
| CMH to DFW · Dallas-Fort Worththin sample | 157 | 84.4% | 81 min | 1.91% | B |
| CMH to BOS · Bostonthin sample | 151 | 84.6% | 64 min | 0.00% | B+ |
| CMH to JFK · New Yorkthin sample | 149 | 86.0% | 68 min | 4.03% | A− |
| CMH to DEN · Denverthin sample | 142 | 80.9% | 49 min | 0.70% | B+ |
| CMH to MDW · Chicagothin sample | 103 | 83.8% | 42 min | 3.88% | B− |
| CMH to PHX · Phoenixthin sample | 95 | 82.1% | 162 min | 0.00% | B+ |
| CMH to MIA · Miamithin sample | 92 | 87.0% | 124 min | 0.00% | A+ |
| CMH to BWI · Baltimorethin sample | 90 | 86.7% | 107 min | 0.00% | A+ |
| CMH to DTW · Detroitthin sample | 89 | 82.8% | 146 min | 2.25% | B |
| CMH to PHL · Philadelphiathin sample | 88 | 82.8% | 94 min | 1.14% | B |
| CMH to BNA · Nashvillethin sample | 85 | 84.7% | 57 min | 0.00% | B+ |
| CMH to TPA · Tampathin sample | 80 | 83.5% | 41 min | 1.25% | B |
| CMH to LAS · Las Vegasthin sample | 70 | 84.1% | 39 min | 0.00% | B+ |
| CMH to FLL · Fort Lauderdalethin sample | 67 | 80.3% | 58 min | 1.49% | B |
| CMH to RSW · Fort Myersthin sample | 62 | 78.3% | 67 min | 3.23% | B− |
| CMH to IAD · Washingtonthin sample | 60 | 83.3% | 46 min | 0.00% | B+ |
| CMH to IAH · Houstonthin sample | 59 | 69.5% | 119 min | 0.00% | C+ |
| CMH to STL · St. Louisthin sample | 54 | 85.2% | 44 min | 0.00% | A+ |
Delay causes
What held CMH up in November
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 55,000 reported delay minutes.
- 37%National Airspace System
- 33%Late-arriving aircraft
- 28%Carrier
- 2%Extreme weather
37% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 20,000 minutes out of 55,000, against a national NAS share of 27%. The split is drawn from 54,912 reported delay minutes.
Cancellations sit at 1.81% against a national 2.49%, which is ordinary. Diversions add another 0.11%.
7.6% of arrivals land an hour or more late, close to the national 7.8%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.
What to do with this
Flying from CMH in November
For a November trip through CMH: expect 79.9% on time and 1.81% cancelled, going by November 2025. The 5am–8am window was the strongest part of the day.
Related
Where to go next
- John Glenn Columbus International (CMH), the whole year
- CMH in July73.3%
- CMH in August82.1%
- CMH in September85.2%
- CMH in October81.1%
- CMH in December70.7%
- CMH in January81.6%
- CMH in February82.9%
- CMH in March76.4%
- CMH in April84.2%
- CMH in May83.4%
- CMH in June81.0%
Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.