Kansas City International in June 2025

72.8%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 June 2025, reporting carriers scheduled 4,395 domestic departures from Kansas City International (MCI). 72.8% left less than 15 minutes late and 70.8% reached their destination on time; 1.3% were cancelled.

Nationally that month, 71.4% of flights departed on time and 70.3% arrived on time, so MCI departures were 1.4 points above the national departure figure.

A year earlier, in June 2024, the airport had 4,450 departures with 78.5% leaving on time: a change of −5.7 points, with flights down 1%.

Flights arriving at MCI that month were on time 67.0% of the time (4,394 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 47%, air carrier 22% and national aviation system 21%.

On time 70.8%
Arrived 15+ minutes late 27.5%
Cancelled 1.3%
Diverted 0.4%

Every scheduled departure from MCI in June 2025, judged by arrival at the destination.

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

Measure	Jun 2025	Jun 2024	MCI, 12 months to Jul 2026	All reported flights, Jun 2025
Departed on time	72.8%	78.5%	77.8%	71.4%
Arrived on time	70.8%	77.9%	78.7%	70.3%
Cancelled	1.3%	0.8%	1.5%	1.6%
Average departure delay (late minutes only)	21.9 min	16.3 min	15.7 min	22.1 min
Scheduled departures a day	147	148	135	20,386
Scheduled departures	4,395	4,450	49,298	611,575

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	2,124	48%	70.2%	15.4 min	0.7%
DL Delta Air Lines	717	16%	80.3%	7.0 min	1.5%
AA American Airlines	495	11%	61.6%	39.6 min	2.4%
UA United Airlines	281	6%	68.0%	21.3 min	0.7%
OO SkyWest Airlines	153	3%	82.4%	7.9 min	0.0%
OH PSA Airlines	124	3%	48.4%	52.6 min	7.3%
YX Republic Airline	123	3%	83.7%	5.4 min	2.4%
NK Spirit Airlines	118	3%	79.7%	5.5 min	0.8%
MQ Envoy Air	111	3%	72.1%	15.4 min	2.7%
AS Alaska Airlines	86	2%	69.8%	9.0 min	1.2%
G4 Allegiant Air	39	1%	46.2%	40.9 min	0.0%
F9 Frontier Airlines	24	1%	25.0%	51.4 min	4.2%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
MCI–DEN	Kansas City to Denver	379	58.3%	29.6 min	0.3%
MCI–ORD	Kansas City to Chicago	345	72.8%	18.6 min	0.9%
MCI–ATL	Kansas City to Atlanta	292	76.4%	8.1 min	1.7%
MCI–DFW	Kansas City to Dallas/Fort Worth	230	50.9%	50.9 min	3.5%
MCI–MDW	Kansas City to Chicago	195	81.0%	11.2 min	0.5%
MCI–PHX	Kansas City to Phoenix	180	73.3%	15.7 min	0.6%
MCI–DAL	Kansas City to Dallas	167	72.5%	13.4 min	1.8%
MCI–DCA	Kansas City to Washington	164	62.2%	34.8 min	4.3%
MCI–LAS	Kansas City to Las Vegas	157	77.1%	8.8 min	0.0%
MCI–LGA	Kansas City to New York	141	65.2%	20.9 min	0.7%
MCI–BNA	Kansas City to Nashville	139	74.1%	11.3 min	0.0%
MCI–MCO	Kansas City to Orlando	133	84.2%	7.8 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), June 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Jun 2025	Minutes
Air carrier	22.0%	31.6%	20,834
Late-arriving aircraft	47.4%	40.6%	44,937
National Aviation System	21.0%	20.9%	19,936
Extreme weather	9.6%	6.9%	9,148
Security	0.0%	0.2%	0

94,855 delay minutes on 1,209 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 June 2025?

72.8% of 4,395 scheduled domestic departures left less than 15 minutes late, and 70.8% reached their destination on time. The national figures that month were 71.4% and 70.3%.

How does that compare with a year earlier?

In June 2024, 78.5% of 4,450 departures left on time and 0.8% were cancelled, against 72.8% and 1.3% in June 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for June 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.