Indianapolis International in December 2024

82.7%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 December 2024, reporting carriers scheduled 3,924 domestic departures from Indianapolis International (IND). 82.7% left less than 15 minutes late and 81.0% reached their destination on time; 0.3% were cancelled.

Nationally that month, 77.8% of flights departed on time and 78.1% arrived on time, so IND departures were 4.9 points above the national departure figure.

A year earlier, in December 2023, the airport had 3,646 departures with 86.5% leaving on time: a change of −3.8 points, with flights up 8%.

Flights arriving at IND that month were on time 78.2% of the time (3,918 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 38%, air carrier 32% and national aviation system 29%.

On time 81.0%
Arrived 15+ minutes late 18.4%
Cancelled 0.3%
Diverted 0.3%

Every scheduled departure from IND in December 2024, judged by arrival at the destination.

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

Measure	Dec 2024	Dec 2023	IND, 12 months to Jul 2026	All reported flights, Dec 2024
Departed on time	82.7%	86.5%	79.4%	77.8%
Arrived on time	81.0%	86.4%	78.9%	78.1%
Cancelled	0.3%	0.2%	1.9%	0.7%
Average departure delay (late minutes only)	13.4 min	9.6 min	14.9 min	16.6 min
Scheduled departures a day	131	122	133	19,686
Scheduled departures	3,924	3,646	48,559	590,581

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
YX Republic Airline	1,094	28%	81.9%	0.3 min	0.3%
WN Southwest Airlines	939	24%	83.0%	1.9 min	0.0%
AA American Airlines	495	13%	82.4%	0.4 min	0.8%
DL Delta Air Lines	368	9%	86.1%	-0.4 min	0.0%
9E Endeavor Air	184	5%	86.4%	-1.8 min	0.0%
NK Spirit Airlines	182	5%	74.2%	10.4 min	0.5%
UA United Airlines	176	4%	79.5%	5.1 min	1.1%
G4 Allegiant Air	147	4%	61.9%	37.7 min	0.7%
MQ Envoy Air	138	4%	73.9%	7.0 min	0.0%
F9 Frontier Airlines	56	1%	78.6%	5.4 min	0.0%
OO SkyWest Airlines	55	1%	72.7%	21.5 min	0.0%
AS Alaska Airlines	45	1%	88.9%	-6.3 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
IND–ORD	Indianapolis to Chicago	354	84.2%	-0.1 min	0.0%
IND–ATL	Indianapolis to Atlanta	261	87.7%	-3.5 min	0.0%
IND–LGA	Indianapolis to New York	214	79.9%	1.7 min	0.0%
IND–MCO	Indianapolis to Orlando	199	80.9%	2.8 min	0.0%
IND–DEN	Indianapolis to Denver	192	84.4%	-3.0 min	0.0%
IND–EWR	Indianapolis to Newark	191	80.1%	1.5 min	0.5%
IND–DFW	Indianapolis to Dallas/Fort Worth	162	80.9%	5.1 min	1.9%
IND–JFK	Indianapolis to New York	153	78.4%	5.7 min	0.7%
IND–DCA	Indianapolis to Washington	152	75.7%	7.4 min	0.0%
IND–BOS	Indianapolis to Boston	151	78.1%	1.2 min	0.7%
IND–CLT	Indianapolis to Charlotte	150	79.3%	5.3 min	0.0%
IND–DTW	Indianapolis to Detroit	139	82.7%	4.2 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), December 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2024	Minutes
Air carrier	31.6%	34.3%	15,666
Late-arriving aircraft	37.9%	40.2%	18,771
National Aviation System	29.0%	17.8%	14,396
Extreme weather	1.4%	7.5%	709
Security	0.0%	0.2%	16

49,558 delay minutes on 723 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 IND on time in December 2024?

82.7% of 3,924 scheduled domestic departures left less than 15 minutes late, and 81.0% reached their destination on time. The national figures that month were 77.8% and 78.1%.

How does that compare with a year earlier?

In December 2023, 86.5% of 3,646 departures left on time and 0.2% were cancelled, against 82.7% and 0.3% in December 2024.

Provenance

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