Indianapolis International in July 2025

74.1%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 July 2025, reporting carriers scheduled 4,222 domestic departures from Indianapolis International (IND). 74.1% left less than 15 minutes late and 72.3% reached their destination on time; 3.0% were cancelled.

Nationally that month, 69.7% of flights departed on time and 69.0% arrived on time, so IND departures were 4.4 points above the national departure figure.

A year earlier, in July 2024, the airport had 4,219 departures with 72.7% leaving on time: a change of +1.4 points, with flights up 0%.

Flights arriving at IND that month were on time 64.7% of the time (4,225 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 39%, national aviation system 28% and air carrier 28%.

On time 72.3%
Arrived 15+ minutes late 24.2%
Cancelled 3.0%
Diverted 0.5%

Every scheduled departure from IND in July 2025, judged by arrival at the destination.

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

Measure	Jul 2025	Jul 2024	IND, 12 months to Jul 2026	All reported flights, Jul 2025
Departed on time	74.1%	72.7%	79.4%	69.7%
Arrived on time	72.3%	71.7%	78.9%	69.0%
Cancelled	3.0%	2.7%	1.9%	2.5%
Average departure delay (late minutes only)	21.2 min	21.7 min	14.9 min	24.3 min
Scheduled departures a day	141	141	133	21,048
Scheduled departures	4,222	4,219	48,559	631,428

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
YX Republic Airline	1,132	27%	71.8%	9.4 min	6.0%
WN Southwest Airlines	993	24%	75.3%	9.6 min	0.8%
AA American Airlines	651	15%	65.6%	30.3 min	3.2%
DL Delta Air Lines	425	10%	85.9%	0.4 min	0.2%
UA United Airlines	261	6%	70.1%	22.2 min	2.3%
G4 Allegiant Air	226	5%	67.3%	23.9 min	0.0%
NK Spirit Airlines	158	4%	77.8%	5.6 min	3.2%
OO SkyWest Airlines	105	2%	78.1%	12.3 min	1.0%
F9 Frontier Airlines	101	2%	67.3%	17.7 min	2.0%
AS Alaska Airlines	61	1%	63.9%	23.0 min	0.0%
OH PSA Airlines	59	1%	39.0%	64.3 min	23.7%
MQ Envoy Air	50	1%	58.0%	30.0 min	2.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
IND–ORD	Indianapolis to Chicago	410	69.0%	20.4 min	2.2%
IND–ATL	Indianapolis to Atlanta	303	83.5%	3.4 min	0.3%
IND–DEN	Indianapolis to Denver	288	70.8%	11.8 min	0.7%
IND–LGA	Indianapolis to New York	219	74.0%	3.3 min	11.0%
IND–DFW	Indianapolis to Dallas/Fort Worth	191	62.8%	44.8 min	3.1%
IND–CLT	Indianapolis to Charlotte	187	74.3%	8.3 min	2.7%
IND–MCO	Indianapolis to Orlando	184	80.4%	4.6 min	1.1%
IND–EWR	Indianapolis to Newark	180	65.0%	12.1 min	10.6%
IND–BOS	Indianapolis to Boston	177	66.1%	17.1 min	3.4%
IND–DCA	Indianapolis to Washington	176	61.9%	28.2 min	12.5%
IND–PHL	Indianapolis to Philadelphia	159	65.4%	31.0 min	3.1%
IND–PHX	Indianapolis to Phoenix	127	73.2%	19.2 min	1.6%

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), July 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Jul 2025	Minutes
Air carrier	27.8%	31.1%	24,179
Late-arriving aircraft	39.0%	40.8%	33,975
National Aviation System	28.1%	20.7%	24,413
Extreme weather	5.1%	7.3%	4,417
Security	0.0%	0.1%	39

87,023 delay minutes on 1,021 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 July 2025?

74.1% of 4,222 scheduled domestic departures left less than 15 minutes late, and 72.3% reached their destination on time. The national figures that month were 69.7% and 69.0%.

How does that compare with a year earlier?

In July 2024, 72.7% of 4,219 departures left on time and 2.7% were cancelled, against 74.1% and 3.0% in July 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for July 2025; 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.