Airports › Indianapolis (IND) › August 2025
Airport month · August 2025
Indianapolis International in August 2025
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 August 2025, reporting carriers scheduled 3,876 domestic departures from Indianapolis International (IND). 81.7% left less than 15 minutes late and 80.3% reached their destination on time; 1.1% were cancelled.
Nationally that month, 76.8% of flights departed on time and 76.3% arrived on time, so IND departures were 4.9 points above the national departure figure.
A year earlier, in August 2024, the airport had 3,907 departures with 80.0% leaving on time: a change of +1.7 points, with flights down 1%.
Flights arriving at IND that month were on time 74.6% of the time (3,876 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 41%, national aviation system 27% and air carrier 26%.
- On time 80.3%
- Arrived 15+ minutes late 18.4%
- Cancelled 1.1%
- Diverted 0.2%
August 2025 against a year earlier, the airport's year and the nation
| Measure | Aug 2025 | Aug 2024 | IND, 12 months to Jul 2026 | All reported flights, Aug 2025 |
|---|---|---|---|---|
| Departed on time | 81.7% | 80.0% | 79.4% | 76.8% |
| Arrived on time | 80.3% | 78.7% | 78.9% | 76.3% |
| Cancelled | 1.1% | 2.9% | 1.9% | 1.1% |
| Average departure delay (late minutes only) | 15.0 min | 14.5 min | 14.9 min | 17.6 min |
| Scheduled departures a day | 129 | 130 | 133 | 20,079 |
| Scheduled departures | 3,876 | 3,907 | 48,559 | 602,378 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| YX Republic Airline | 1,107 | 29% | 83.7% | 0.3 min | 1.1% |
| WN Southwest Airlines | 874 | 23% | 81.5% | 4.3 min | 0.1% |
| AA American Airlines | 565 | 15% | 70.6% | 23.7 min | 2.5% |
| DL Delta Air Lines | 425 | 11% | 88.2% | -6.2 min | 1.2% |
| UA United Airlines | 261 | 7% | 75.1% | 19.4 min | 1.5% |
| NK Spirit Airlines | 137 | 4% | 85.4% | 2.5 min | 0.0% |
| OO SkyWest Airlines | 118 | 3% | 83.1% | 2.8 min | 0.0% |
| G4 Allegiant Air | 102 | 3% | 75.5% | 7.0 min | 0.0% |
| F9 Frontier Airlines | 99 | 3% | 76.8% | 5.6 min | 2.0% |
| OH PSA Airlines | 77 | 2% | 70.1% | 35.0 min | 5.2% |
| AS Alaska Airlines | 59 | 2% | 64.4% | 15.4 min | 0.0% |
| MQ Envoy Air | 52 | 1% | 84.6% | 7.7 min | 1.9% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| IND–ORD | Indianapolis to Chicago | 409 | 79.0% | 8.1 min | 2.0% |
| IND–ATL | Indianapolis to Atlanta | 294 | 87.8% | -5.0 min | 1.7% |
| IND–DEN | Indianapolis to Denver | 242 | 78.1% | 8.9 min | 0.8% |
| IND–LGA | Indianapolis to New York | 210 | 89.5% | -3.8 min | 1.0% |
| IND–DFW | Indianapolis to Dallas/Fort Worth | 197 | 71.6% | 25.4 min | 3.0% |
| IND–EWR | Indianapolis to Newark | 195 | 77.9% | 5.6 min | 1.0% |
| IND–BOS | Indianapolis to Boston | 172 | 77.3% | 0.3 min | 1.7% |
| IND–DCA | Indianapolis to Washington | 171 | 77.2% | 12.3 min | 1.8% |
| IND–CLT | Indianapolis to Charlotte | 143 | 72.7% | 24.8 min | 1.4% |
| IND–MCO | Indianapolis to Orlando | 142 | 71.8% | 12.3 min | 0.7% |
| IND–PHL | Indianapolis to Philadelphia | 133 | 74.4% | 9.8 min | 3.0% |
| IND–MSP | Indianapolis to Minneapolis | 113 | 83.2% | -1.2 min | 0.0% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left IND on time in August 2025?
81.7% of 3,876 scheduled domestic departures left less than 15 minutes late, and 80.3% reached their destination on time. The national figures that month were 76.8% and 76.3%.
How does that compare with a year earlier?
In August 2024, 80.0% of 3,907 departures left on time and 2.9% were cancelled, against 81.7% and 1.1% in August 2025.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for August 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.