Chicago Midway International in January 2024

67.2%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 January 2024, reporting carriers scheduled 5,886 domestic departures from Chicago Midway International (MDW). 67.2% left less than 15 minutes late and 66.6% reached their destination on time; 8.3% were cancelled.

Nationally that month, 74.0% of flights departed on time and 72.9% arrived on time, so MDW departures were 6.8 points below the national departure figure.

Flights arriving at MDW that month were on time 70.5% of the time (5,882 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 40%, air carrier 35% and national aviation system 19%.

On time 66.6%
Arrived 15+ minutes late 24.8%
Cancelled 8.3%
Diverted 0.2%

Every scheduled departure from MDW in January 2024, judged by arrival at the destination.

January 2024 against a year earlier, the airport's year and the nation

Measure	Jan 2024	Year earlier	MDW, 12 months to Jul 2026	All reported flights, Jan 2024
Departed on time	67.2%	—	70.7%	74.0%
Arrived on time	66.6%	—	73.9%	72.9%
Cancelled	8.3%	—	1.5%	3.7%
Average departure delay (late minutes only)	17.8 min	—	16.5 min	18.7 min
Scheduled departures a day	196	—	202	18,242
Scheduled departures	5,886	—	73,744	547,271

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	5,359	91%	66.8%	8.6 min	8.6%
F9 Frontier Airlines	246	4%	58.1%	36.3 min	7.3%
OO SkyWest Airlines	156	3%	64.7%	33.7 min	7.1%
DL Delta Air Lines	102	2%	81.4%	23.7 min	2.0%
G4 Allegiant Air	23	0%	60.9%	28.3 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
MDW–ATL	Chicago to Atlanta	262	69.5%	22.3 min	6.5%
MDW–DEN	Chicago to Denver	255	70.2%	13.6 min	9.0%
MDW–LAS	Chicago to Las Vegas	242	70.2%	3.5 min	8.7%
MDW–MCO	Chicago to Orlando	242	63.6%	16.7 min	7.9%
MDW–PHX	Chicago to Phoenix	225	70.7%	2.2 min	8.4%
MDW–LGA	Chicago to New York	219	61.6%	11.8 min	14.2%
MDW–MSP	Chicago to Minneapolis	219	71.7%	13.9 min	7.8%
MDW–DCA	Chicago to Washington	178	63.5%	7.3 min	10.7%
MDW–DTW	Chicago to Detroit	171	62.6%	26.0 min	7.0%
MDW–DAL	Chicago to Dallas	166	69.3%	6.3 min	9.0%
MDW–MCI	Chicago to Kansas City	162	67.3%	7.8 min	13.6%
MDW–BNA	Chicago to Nashville	152	70.4%	4.8 min	9.9%

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), January 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Jan 2024	Minutes
Air carrier	35.4%	32.6%	31,710
Late-arriving aircraft	39.7%	39.0%	35,559
National Aviation System	19.0%	17.9%	17,020
Extreme weather	5.7%	10.3%	5,143
Security	0.1%	0.2%	64

89,496 delay minutes on 1,462 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 MDW on time in January 2024?

67.2% of 5,886 scheduled domestic departures left less than 15 minutes late, and 66.6% reached their destination on time. The national figures that month were 74.0% and 72.9%.

How does that compare with a year earlier?

January 2023 is outside the 36 months on file, or the airport had too few reported flights that month.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for January 2024; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for MDW · methodology · corrections.