Birmingham-Shuttlesworth International in April 2025

79.1%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 2025, reporting carriers scheduled 1,419 domestic departures from Birmingham-Shuttlesworth International (BHM). 79.1% left less than 15 minutes late and 79.0% reached their destination on time; 1.1% were cancelled.

Nationally that month, 80.6% of flights departed on time and 79.5% arrived on time, so BHM departures were 1.5 points below the national departure figure.

A year earlier, in April 2024, the airport had 1,429 departures with 84.2% leaving on time: a change of −5.1 points, with flights down 1%.

Flights arriving at BHM that month were on time 75.2% of the time (1,422 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 43%, air carrier 30% and national aviation system 16%.

On time 79.0%
Arrived 15+ minutes late 19.9%
Cancelled 1.1%
Diverted 0.0%

Every scheduled departure from BHM in April 2025, judged by arrival at the destination.

April 2025 against a year earlier, the airport's year and the nation

Measure	Apr 2025	Apr 2024	BHM, 12 months to Jul 2026	All reported flights, Apr 2025
Departed on time	79.1%	84.2%	79.8%	80.6%
Arrived on time	79.0%	82.8%	80.3%	79.5%
Cancelled	1.1%	0.6%	1.6%	0.8%
Average departure delay (late minutes only)	18.4 min	11.5 min	16.3 min	14.1 min
Scheduled departures a day	47	48	46	19,465
Scheduled departures	1,419	1,429	16,924	583,950

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	422	30%	78.9%	9.1 min	0.7%
OH PSA Airlines	344	24%	79.1%	9.7 min	1.2%
DL Delta Air Lines	251	18%	85.3%	0.9 min	1.6%
MQ Envoy Air	165	12%	79.4%	13.2 min	1.8%
OO SkyWest Airlines	151	11%	69.5%	18.5 min	0.0%
AA American Airlines	59	4%	69.5%	33.1 min	3.4%
NK Spirit Airlines	27	2%	92.6%	-9.4 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
BHM–ATL	Birmingham to Atlanta	251	85.3%	0.9 min	1.6%
BHM–CLT	Birmingham to Charlotte	175	79.4%	16.2 min	1.1%
BHM–DFW	Birmingham to Dallas/Fort Worth	175	69.1%	22.0 min	1.7%
BHM–DEN	Birmingham to Denver	90	82.2%	10.3 min	0.0%
BHM–DCA	Birmingham to Washington	86	75.6%	5.7 min	2.3%
BHM–DAL	Birmingham to Dallas	83	78.3%	-0.2 min	3.6%
BHM–MCO	Birmingham to Orlando	67	80.6%	9.8 min	0.0%
BHM–MIA	Birmingham to Miami	60	78.3%	17.8 min	3.3%
BHM–PHL	Birmingham to Philadelphia	53	90.6%	-8.3 min	0.0%
BHM–MDW	Birmingham to Chicago	50	86.0%	2.8 min	0.0%
BHM–DTW	Birmingham to Detroit	42	76.2%	15.1 min	0.0%
BHM–ORD	Birmingham to Chicago	42	88.1%	8.8 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), April 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2025	Minutes
Air carrier	29.7%	32.7%	7,469
Late-arriving aircraft	42.7%	39.4%	10,762
National Aviation System	16.4%	22.2%	4,120
Extreme weather	11.1%	5.5%	2,798
Security	0.1%	0.2%	30

25,179 delay minutes on 282 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 BHM on time in April 2025?

79.1% of 1,419 scheduled domestic departures left less than 15 minutes late, and 79.0% reached their destination on time. The national figures that month were 80.6% and 79.5%.

How does that compare with a year earlier?

In April 2024, 84.2% of 1,429 departures left on time and 0.6% were cancelled, against 79.1% and 1.1% in April 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for April 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for BHM · methodology · corrections.