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ICAO KCMH

Columbus John Glenn, Ohio (CMH)

John Glenn Columbus International Airport handled 828,577 passengers in July 2026, up 0.1% on a year earlier, according to the US BTS.

Official · July 2026 according to the US BTS Full count · domestic + international

Flights (arrivals + departures) over time

The most recent periods19 periods
PeriodFlights (arrivals + departures) 2025Flights (arrivals + departures) 2026Change vs last year
January7,1316,978▼ 2.1%
February6,7236,885▲ 2.4%
March8,1888,516▲ 4.0%
April8,1838,143▼ 0.5%
May8,3318,484▲ 1.8%
June8,4138,521▲ 1.3%
July8,4798,780▲ 3.5%
August8,135––
September8,097––
October8,754–in progress
November7,866––
December7,738––
Year to date (Jan–Jul)55,44856,307▲ 1.5%

Passengers over time

Full count · domestic + international
The most recent periods19 periods
PeriodPassengers 2025Passengers 2026Change vs last year
January592,743565,101▼ 4.7%
February577,721594,818▲ 3.0%
March766,847790,691▲ 3.1%
April713,215721,394▲ 1.1%
May793,848786,947▼ 0.9%
June826,510829,938▲ 0.4%
July827,510828,577▲ 0.1%
August772,328––
September762,246––
October814,159–in progress
November693,407––
December685,746––
Year to date (Jan–Jul)5,098,3945,117,466▲ 0.4%

Tonnes of cargo over time

Full count · domestic + international
The most recent periods19 periods
PeriodTonnes of cargo 2025Tonnes of cargo 2026Change vs last year
January321191▼ 40.5%
February264184▼ 30.5%
March220196▼ 11.1%
April219223▲ 1.5%
May196221▲ 13.0%
June183209▲ 14.4%
July206209▲ 1.5%
August189––
September182––
October207–in progress
November202––
December213––
Year to date (Jan–Jul)1,6101,433▼ 11.0%

Seats offered over time

Full count · domestic + international
The most recent periods19 periods
PeriodSeats offered 2025Seats offered 2026Change vs last year
January848,340829,780▼ 2.2%
February804,273830,124▲ 3.2%
March997,5701,057,556▲ 6.0%
April990,3821,002,440▲ 1.2%
May1,011,8871,026,174▲ 1.4%
June1,058,6631,026,170▼ 3.1%
July1,061,1471,063,614▲ 0.2%
August1,006,134––
September1,018,506––
October1,071,025–in progress
November960,072––
December942,943––
Year to date (Jan–Jul)6,772,2626,835,858▲ 0.9%

Domestic / International

July 2026
  • Domestic 97.5% 8,557
  • International 2.5% 223

Domestic / International — flights (arrivals + departures)

Full count · domestic + international

Domestic

The most recent periods19 periods
PeriodFlights (arrivals + departures) 2025Flights (arrivals + departures) 2026Change vs last year
January7,1226,917▼ 2.9%
February6,7106,830▲ 1.8%
March8,1478,425▲ 3.4%
April8,1248,068▼ 0.7%
May8,2718,283▲ 0.1%
June8,3238,303▼ 0.2%
July8,3608,557▲ 2.4%
August8,015––
September7,987––
October8,647–in progress
November7,814––
December7,687––
Year to date (Jan–Jul)55,05755,383▲ 0.6%

International

The most recent periods19 periods
PeriodFlights (arrivals + departures) 2025Flights (arrivals + departures) 2026Change vs last year
January961▲ 577.8%
February1355▲ 323.1%
March4191▲ 122.0%
April5975▲ 27.1%
May60201▲ 235.0%
June90218▲ 142.2%
July119223▲ 87.4%
August120––
September110––
October107–in progress
November52––
December51––
Year to date (Jan–Jul)391924▲ 136.3%

Domestic / International — passengers

Full count · domestic + international

Domestic

The most recent periods19 periods
PeriodPassengers 2025Passengers 2026Change vs last year
January591,442561,207▼ 5.1%
February576,193591,873▲ 2.7%
March761,627784,340▲ 3.0%
April708,986716,461▲ 1.1%
May789,617775,784▼ 1.8%
June817,029815,424▼ 0.2%
July818,385813,613▼ 0.6%
August765,917––
September756,297––
October808,508–in progress
November690,424––
December682,765––
Year to date (Jan–Jul)5,063,2795,058,702▼ 0.1%

International

The most recent periods19 periods
PeriodPassengers 2025Passengers 2026Change vs last year
January1,3013,894▲ 199.3%
February1,5282,945▲ 92.7%
March5,2206,351▲ 21.7%
April4,2294,933▲ 16.6%
May4,23111,163▲ 163.8%
June9,48114,514▲ 53.1%
July9,12514,964▲ 64.0%
August6,411––
September5,949––
October5,651–in progress
November2,983––
December2,981––
Year to date (Jan–Jul)35,11558,764▲ 67.3%

Domestic / International — seats offered

Full count · domestic + international

Domestic

The most recent periods19 periods
PeriodSeats offered 2025Seats offered 2026Change vs last year
January846,778824,256▼ 2.7%
February802,143825,304▲ 2.9%
March991,0501,048,184▲ 5.8%
April984,623994,736▲ 1.0%
May1,006,3061,009,266▲ 0.3%
June1,045,0671,006,901▼ 3.7%
July1,048,8941,043,756▼ 0.5%
August996,178––
September1,009,996––
October1,062,899–in progress
November955,278––
December938,223––
Year to date (Jan–Jul)6,724,8616,752,403▲ 0.4%

International

The most recent periods19 periods
PeriodSeats offered 2025Seats offered 2026Change vs last year
January1,5625,524▲ 253.6%
February2,1304,820▲ 126.3%
March6,5209,372▲ 43.7%
April5,7597,704▲ 33.8%
May5,58116,908▲ 203.0%
June13,59619,269▲ 41.7%
July12,25319,858▲ 62.1%
August9,956––
September8,510––
October8,126–in progress
November4,794––
December4,720––
Year to date (Jan–Jul)47,40183,455▲ 76.1%

Load factor (computed)

Full count · domestic + international

Passengers ÷ seats offered, both as reported by the US BTS for the same months. Computed by us; the two source series are shown on this page.

The most recent periods19 periods
PeriodLoad factor 2025Load factor 2026Change vs last year
January69.9%68.1%▼ 2.5%
February71.8%71.7%▼ 0.2%
March76.9%74.8%▼ 2.7%
April72.0%72.0%▼ 0.1%
May78.5%76.7%▼ 2.2%
June78.1%80.9%▲ 3.6%
July78.0%77.9%▼ 0.1%
August76.8%––
September74.8%––
October76.0%–in progress
November72.2%––
December72.7%––
Year-to-date average (Jan–Jul)75.0%74.6%▼ 0.6%

Seasonality · flights (arrivals + departures) by month

Year JanFebMarAprMayJunJulAugSepOctNovDec
2024 6,638 6,563 7,458 7,202 7,679 7,810 7,998 7,836 7,635 8,109 7,644 7,556
2025 7,131 6,723 8,188 8,183 8,331 8,413 8,479 8,135 8,097 8,754 7,866 7,738
2026 6,978 6,885 8,516 8,143 8,484 8,521 8,780
International share 3% of flights (arrivals + departures) in July 2026
Series depth 36 years from 1990

Busiest destinations

Flights recorded between Oct 12, 2024 and Jul 31, 2026, counted from flight records published by the US BTS. Not a current timetable.

Busiest destinations FlightsDistance (km)
Chicago O'Hare International Airport CMH–ORD → 16,689 475
Hartsfield Jackson Atlanta International Airport CMH–ATL → 11,491 720
LaGuardia Airport CMH–LGA → 11,151 768
Orlando International Airport CMH–MCO → 7,912 1,295
Charlotte Douglas International Airport CMH–CLT → 7,371 559
Ronald Reagan Washington National Airport CMH–DCA → 7,370 519
Boston Logan International Airport CMH–BOS → 7,182 1,028
Newark Liberty International Airport CMH–EWR → 6,759 743
Denver International Airport CMH–DEN → 6,280 1,853
Dallas Fort Worth International Airport CMH–DFW → 6,278 1,489

On-time departures by month

US domestic sectors recorded by BTS

78.6% of 3,877 timed departures from John Glenn Columbus International Airport left within 15 minutes of schedule in July 2026, according to the US BTS. Cancelled flights are excluded.

The most recent periods19 periods
PeriodOn-time departures 2025On-time departures 2026Change vs last year
January85.2%83.4%▼ 2.2%
February85.0%83.1%▼ 2.3%
March84.5%76.8%▼ 9.1%
April85.2%85.1%▼ 0.1%
May80.6%84.3%▲ 4.6%
June76.5%80.5%▲ 5.3%
July74.1%78.6%▲ 6.1%
August84.5%––
September85.8%––
October83.3%–in progress
November82.0%––
December74.2%––
Year-to-date average (Jan–Jul)81.6%81.7%▲ 0.1%

Flight timing & delays

Historical departures, grouped by the scheduled local time at the departure airport. These are recorded outcomes, not a forecast for your flight.

US domestic sectors recorded by BTS

Source: the US BTS · Oct 12, 2024 → Jul 31, 2026

Lowest average delay06:00–07:002.3min · 10,980 recorded · 10,826 measured
Gap to highest-delay hour19.5min06:00 ↔ 19:00
Recorded flights80,001John Glenn Columbus International Airport

Departure hour

On-time departures Partial coverage: domestic flights only

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Average departure delay Partial coverage: domestic flights only

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Recorded flights Partial coverage: domestic flights only

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View the figures
Departure hourOn-time departuresAverage departure delayWith departure timeRecorded flights
00:00No observations———
01:00No observations———
02:00No observations———
03:00No observations———
04:00No observations———
05:0094.8%2.5 min3,9223,969
06:0093.2%2.3 min10,82610,980
07:0090.4%5.3 min7,3847,463
08:0090.2%6.3 min5,7565,829
09:0089.8%4.7 min2,9102,959
10:0088.0%5.8 min4,6414,707
11:0085.7%7.0 min4,8754,947
12:0080.9%10.4 min4,3834,450
13:0081.1%9.8 min3,3293,377
14:0077.2%15.2 min4,4704,553
15:0072.5%17.7 min4,1674,241
16:0073.3%16.7 min4,2924,403
17:0071.3%20.3 min5,4895,656
18:0070.8%19.9 min5,4735,624
19:0068.8%21.9 min3,6653,751
20:0064.1%21.8 min2,2162,261
21:0067.8%16.2 min792808
22:00Fewer than 200 measured departures—2223
23:00No observations———

Day of week

On-time departures Partial coverage: domestic flights only

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Average departure delay Partial coverage: domestic flights only

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Recorded flights Partial coverage: domestic flights only

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday80.7%12.2 min11,72312,002
Tuesday85.1%7.2 min10,78310,969
Wednesday85.5%7.7 min10,93011,059
Thursday81.6%11.4 min11,65611,822
Friday81.8%11.3 min11,81811,985
Saturday83.2%10.4 min9,96410,107
Sunday78.9%14.0 min11,73812,057

Month of year

Months combine the same calendar month across the years shown; this is a seasonal pattern, not a monthly time series.

On-time departures Partial coverage: domestic flights only

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: domestic flights only

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: domestic flights only

Hover, tap or focus a point to see its value, sample and source.

View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan84.3%9.0 min6,2996,579
Feb84.0%8.5 min6,2056,334
Mar80.6%13.8 min7,6117,770
Apr85.1%7.1 min7,4857,537
May82.5%10.2 min7,6167,711
Jun78.5%14.7 min7,6497,802
Jul76.4%17.0 min7,6767,935
Aug84.5%8.5 min3,7053,758
Sep85.8%6.2 min3,7073,726
Oct86.1%7.0 min6,4576,503
Nov85.7%7.1 min7,1747,251
Dec78.2%14.4 min7,0287,095

Delay and on-time rates need at least 200 measured departures per bucket. Smaller samples remain visible in the flight-count chart. An empty slot means no observations, not zero flights.

Recorded outcomes

  • On time 80.9% 64,698
  • Delayed >15 min 17.4% 13,914
  • Cancelled 1.7% 1,389
  • Missing departure time 0.0% 0

All recorded flights with a known scheduled local time, counted once. Missing actual times are shown separately.

On time means departing no more than 15 minutes after schedule. Cancelled flights and flights missing departure times are excluded from the on-time rate and average delay.

Environment

Airport Carbon Accreditation

Level 2 John Glenn Columbus International Airport holds Airport Carbon Accreditation Level 2 (status checked October 2026), according to the programme's public list.

A certification of how the airport operator manages its own carbon emissions (levels 1–5, "+" = with offsetting). It is not a measure of how much the airport or its flights emit.

Airport Carbon Accreditation (ACI)

Air pollutants at the airport (EPA estimate)

Modelled estimate, not a measurement: aircraft below 3,000 ft (landing and take-off), ground support equipment and auxiliary power units, plus any stationary sources the state reported at the airport site. Cruise emissions are not included.

In 2023, the US EPA estimated 257 tonnes of nitrogen oxides (NOₓ) and 6.6 tonnes of fine particles (PM2.5) from activity at John Glenn Columbus International Airport, according to the EPA National Emissions Inventory.

PollutantUnit201720202023
NOₓ (Nitrogen oxides)tonnes241107257
CO (Carbon monoxide)tonnes851258429
SO₂ (Sulphur dioxide)tonnes40.214.232.0
VOC (Volatile organic compounds)tonnes82.663.340.0
PM2.5 (Fine particles)tonnes10.23.76.6
PM10 (Particulate matter)tonnes10.94.06.9
Leadkg84.534.550.4
CO₂ (Carbon dioxide)tonnes97,38539,888—

The inventory is published every three years. Coverage changes between editions (about 19,300 airport sites in 2017, 6,000 in 2020, 12,700 in 2023), 2020 reflects the pandemic drop in traffic, and EPA updates its aircraft model between editions — so the columns are not a trend (Los Angeles: 3,562 tonnes of NOₓ in 2017, 8,810 in 2023). CO₂ is only reported for some sites in 2017, for all sites in 2020, and not at all in 2023. EPA publishes US customary units; converted here to metric tonnes (× 0.907) and, for lead, kilograms.

US EPA — National Emissions Inventory

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