Kansas City International in April 2025

82.8%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 3,969 domestic departures from Kansas City International (MCI). 82.8% left less than 15 minutes late and 80.7% reached their destination on time; 0.8% were cancelled.

Nationally that month, 80.6% of flights departed on time and 79.5% arrived on time, so MCI departures were 2.2 points above the national departure figure.

A year earlier, in April 2024, the airport had 4,106 departures with 82.1% leaving on time: a change of +0.7 points, with flights down 3%.

Flights arriving at MCI that month were on time 78.5% of the time (3,970 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 43%, national aviation system 28% and air carrier 27%.

On time 80.7%
Arrived 15+ minutes late 18.4%
Cancelled 0.8%
Diverted 0.2%

Every scheduled departure from MCI 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	MCI, 12 months to Jul 2026	All reported flights, Apr 2025
Departed on time	82.8%	82.1%	77.8%	80.6%
Arrived on time	80.7%	82.5%	78.7%	79.5%
Cancelled	0.8%	0.5%	1.5%	0.8%
Average departure delay (late minutes only)	12.6 min	12.9 min	15.7 min	14.1 min
Scheduled departures a day	132	137	135	19,465
Scheduled departures	3,969	4,106	49,298	583,950

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	2,034	51%	80.3%	6.0 min	0.4%
DL Delta Air Lines	664	17%	87.5%	-2.3 min	0.9%
AA American Airlines	382	10%	73.3%	18.0 min	2.6%
UA United Airlines	266	7%	76.3%	16.2 min	0.0%
MQ Envoy Air	166	4%	72.9%	8.4 min	2.4%
OH PSA Airlines	131	3%	86.3%	3.2 min	1.5%
YX Republic Airline	95	2%	86.3%	-2.7 min	0.0%
OO SkyWest Airlines	85	2%	78.8%	4.6 min	1.2%
AS Alaska Airlines	55	1%	90.9%	-4.6 min	0.0%
NK Spirit Airlines	48	1%	81.3%	6.3 min	0.0%
G4 Allegiant Air	24	1%	70.8%	-3.3 min	0.0%
F9 Frontier Airlines	19	0%	73.7%	8.8 min	5.3%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
MCI–DEN	Kansas City to Denver	332	70.2%	16.7 min	1.2%
MCI–ORD	Kansas City to Chicago	330	84.2%	3.8 min	0.3%
MCI–ATL	Kansas City to Atlanta	249	86.3%	0.1 min	0.8%
MCI–PHX	Kansas City to Phoenix	226	79.6%	19.7 min	0.4%
MCI–DFW	Kansas City to Dallas/Fort Worth	205	61.0%	20.3 min	5.9%
MCI–DAL	Kansas City to Dallas	177	80.2%	1.9 min	2.3%
MCI–MDW	Kansas City to Chicago	176	79.0%	5.7 min	0.0%
MCI–DCA	Kansas City to Washington	165	84.2%	3.0 min	1.2%
MCI–LAS	Kansas City to Las Vegas	156	87.2%	2.0 min	0.0%
MCI–LGA	Kansas City to New York	138	84.1%	-0.3 min	1.4%
MCI–CLT	Kansas City to Charlotte	116	76.7%	11.2 min	0.9%
MCI–DTW	Kansas City to Detroit	116	94.0%	-10.5 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	26.9%	32.7%	13,390
Late-arriving aircraft	42.7%	39.4%	21,246
National Aviation System	27.8%	22.2%	13,835
Extreme weather	2.7%	5.5%	1,340
Security	0.0%	0.2%	0

49,811 delay minutes on 729 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 MCI on time in April 2025?

82.8% of 3,969 scheduled domestic departures left less than 15 minutes late, and 80.7% 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, 82.1% of 4,106 departures left on time and 0.5% were cancelled, against 82.8% and 0.8% 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 MCI · methodology · corrections.