Columbia Regional in May 2026

81.3%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 May 2026, reporting carriers scheduled 337 domestic departures from Columbia Regional (COU). 81.3% left less than 15 minutes late and 78.9% reached their destination on time; 2.4% were cancelled.

Nationally that month, 77.1% of flights departed on time and 77.6% arrived on time, so COU departures were 4.2 points above the national departure figure.

A year earlier, in May 2025, the airport had 184 departures with 84.8% leaving on time: a change of −3.5 points, with flights up 83%.

Flights arriving at COU that month were on time 81.4% of the time (338 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 53%, air carrier 28% and extreme weather 12%.

On time 78.9%
Arrived 15+ minutes late 17.5%
Cancelled 2.4%
Diverted 1.2%

Every scheduled departure from COU in May 2026, judged by arrival at the destination.

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

Measure	May 2026	May 2025	COU, 12 months to Jul 2026	All reported flights, May 2026
Departed on time	81.3%	84.8%	77.7%	77.1%
Arrived on time	78.9%	80.4%	75.6%	77.6%
Cancelled	2.4%	3.3%	3.1%	0.9%
Average departure delay (late minutes only)	22.7 min	15.0 min	20.5 min	16.0 min
Scheduled departures a day	11	6	10	20,391
Scheduled departures	337	184	3,635	611,735

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
MQ Envoy Air	213	63%	81.7%	8.8 min	2.3%
OO SkyWest Airlines	124	37%	74.2%	18.0 min	2.4%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
COU–ORD	Columbia to Chicago	186	75.3%	10.6 min	2.2%
COU–DFW	Columbia to Dallas/Fort Worth	110	80.9%	20.9 min	3.6%
COU–DEN	Columbia to Denver	31	93.5%	-6.0 min	0.0%
COU–CLT	Columbia to Charlotte	10	80.0%	3.8 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), May 2026.

Delay causes

BTS cause category	Share of delay minutes	National, May 2026	Minutes
Air carrier	27.9%	33.0%	1,983
Late-arriving aircraft	52.5%	40.4%	3,728
National Aviation System	7.2%	20.5%	512
Extreme weather	12.3%	6.0%	874
Security	0.0%	0.1%	0

7,097 delay minutes on 59 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 COU on time in May 2026?

81.3% of 337 scheduled domestic departures left less than 15 minutes late, and 78.9% reached their destination on time. The national figures that month were 77.1% and 77.6%.

How does that compare with a year earlier?

In May 2025, 84.8% of 184 departures left on time and 3.3% were cancelled, against 81.3% and 2.4% in May 2026.

Provenance

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