John Glenn Columbus International in April 2026

84.1%departed on time

BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.

In April 2026, reporting carriers scheduled 3,713 domestic departures from John Glenn Columbus International (CMH). 84.1% left less than 15 minutes late and 83.6% reached their destination on time; 0.5% were cancelled.

Nationally that month, 79.1% of flights departed on time and 78.9% arrived on time, so CMH departures were 5.0 points above the national departure figure.

A year earlier, in April 2025, the airport had 3,824 departures with 83.7% leaving on time: a change of +0.4 points, with flights down 3%.

Flights arriving at CMH that month were on time 79.5% of the time (3,711 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 38%, national aviation system 34% and air carrier 23%.

On time 83.6%
Arrived 15+ minutes late 15.7%
Cancelled 0.5%
Diverted 0.2%

Every scheduled departure from CMH in April 2026, judged by arrival at the destination.

April 2026 against a year earlier, the airport's year and the nation

Measure	Apr 2026	Apr 2025	CMH, 12 months to Jul 2026	All reported flights, Apr 2026
Departed on time	84.1%	83.7%	79.6%	79.1%
Arrived on time	83.6%	82.7%	79.0%	78.9%
Cancelled	0.5%	0.9%	2.0%	0.9%
Average departure delay (late minutes only)	11.8 min	11.2 min	15.0 min	14.5 min
Scheduled departures a day	124	128	123	19,931
Scheduled departures	3,713	3,824	44,711	597,919

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
YX Republic Airline	1,104	30%	86.1%	-3.3 min	0.5%
WN Southwest Airlines	1,050	28%	83.0%	1.8 min	0.0%
AA American Airlines	361	10%	80.3%	9.8 min	0.6%
UA United Airlines	293	8%	79.9%	11.8 min	0.0%
DL Delta Air Lines	276	7%	93.1%	-14.4 min	0.7%
MQ Envoy Air	258	7%	80.6%	0.9 min	1.9%
OH PSA Airlines	142	4%	78.2%	10.7 min	0.7%
OO SkyWest Airlines	72	2%	94.4%	-12.7 min	0.0%
NK Spirit Airlines	67	2%	74.6%	7.4 min	3.0%
F9 Frontier Airlines	60	2%	73.3%	11.3 min	0.0%
AS Alaska Airlines	30	1%	70.0%	9.1 min	3.3%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
CMH–ORD	Columbus to Chicago	464	75.4%	12.0 min	2.8%
CMH–ATL	Columbus to Atlanta	249	91.2%	-12.1 min	0.8%
CMH–LGA	Columbus to New York	249	79.9%	5.2 min	0.0%
CMH–MCO	Columbus to Orlando	187	78.1%	5.1 min	1.1%
CMH–CLT	Columbus to Charlotte	180	85.6%	-4.8 min	0.0%
CMH–DCA	Columbus to Washington	169	74.6%	12.5 min	0.0%
CMH–BOS	Columbus to Boston	164	82.3%	-3.6 min	0.0%
CMH–DEN	Columbus to Denver	149	89.9%	-4.1 min	0.0%
CMH–DFW	Columbus to Dallas/Fort Worth	146	78.1%	19.5 min	0.7%
CMH–EWR	Columbus to Newark	146	95.2%	-10.5 min	0.0%
CMH–JFK	Columbus to New York	130	90.0%	-8.4 min	0.0%
CMH–PHX	Columbus to Phoenix	110	80.0%	5.1 min	0.0%

By scheduled departure hour

On-time share:under 62%6270768288% and over

Share of departures that left less than 15 minutes late, by scheduled hour (local time), April 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2026	Minutes
Air carrier	23.2%	33.5%	9,727
Late-arriving aircraft	38.0%	40.4%	15,907
National Aviation System	33.9%	21.0%	14,210
Extreme weather	4.8%	5.0%	2,002
Security	0.1%	0.1%	21

41,867 delay minutes on 583 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.

Questions and answers

How many flights left CMH on time in April 2026?

84.1% of 3,713 scheduled domestic departures left less than 15 minutes late, and 83.6% reached their destination on time. The national figures that month were 79.1% and 78.9%.

How does that compare with a year earlier?

In April 2025, 83.7% of 3,824 departures left on time and 0.9% were cancelled, against 84.1% and 0.5% in April 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for April 2026; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for CMH · methodology · corrections.