Airports › Boise (BOI) › October 2025
Airport month · October 2025
Boise Air Terminal in October 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 October 2025, reporting carriers scheduled 2,008 domestic departures from Boise Air Terminal (BOI). 87.0% left less than 15 minutes late and 85.7% reached their destination on time; 0.2% were cancelled.
Nationally that month, 80.0% of flights departed on time and 79.1% arrived on time, so BOI departures were 7.0 points above the national departure figure.
A year earlier, in October 2024, the airport had 1,991 departures with 90.1% leaving on time: a change of −3.1 points, with flights up 1%.
Flights arriving at BOI that month were on time 83.4% of the time (2,010 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 52%, late-arriving aircraft 27% and national aviation system 19%.
- On time 85.7%
- Arrived 15+ minutes late 14.0%
- Cancelled 0.2%
- Diverted 0.1%
October 2025 against a year earlier, the airport's year and the nation
| Measure | Oct 2025 | Oct 2024 | BOI, 12 months to Jul 2026 | All reported flights, Oct 2025 |
|---|---|---|---|---|
| Departed on time | 87.0% | 90.1% | 83.9% | 80.0% |
| Arrived on time | 85.7% | 88.4% | 82.9% | 79.1% |
| Cancelled | 0.2% | 0.1% | 0.5% | 0.5% |
| Average departure delay (late minutes only) | 9.5 min | 7.7 min | 12.2 min | 13.9 min |
| Scheduled departures a day | 67 | 66 | 65 | 20,195 |
| Scheduled departures | 2,008 | 1,991 | 23,701 | 605,844 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| OO SkyWest Airlines | 902 | 45% | 88.0% | -3.0 min | 0.0% |
| WN Southwest Airlines | 445 | 22% | 78.9% | 5.7 min | 0.0% |
| DL Delta Air Lines | 203 | 10% | 90.6% | -1.8 min | 0.5% |
| UA United Airlines | 170 | 8% | 87.1% | -3.0 min | 0.0% |
| AS Alaska Airlines | 150 | 7% | 86.7% | 1.2 min | 1.3% |
| AA American Airlines | 95 | 5% | 82.1% | 11.5 min | 1.1% |
| G4 Allegiant Air | 27 | 1% | 85.2% | 7.9 min | 0.0% |
| F9 Frontier Airlines | 13 | 1% | 69.2% | 97.5 min | 0.0% |
| NK Spirit Airlines | 3 | 0% | 100.0% | -16.0 min | 0.0% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| BOI–SEA | Boise to Seattle | 301 | 84.7% | -2.7 min | 0.3% |
| BOI–DEN | Boise to Denver | 259 | 81.5% | 5.5 min | 0.0% |
| BOI–PHX | Boise to Phoenix | 198 | 80.3% | 7.1 min | 0.0% |
| BOI–SLC | Boise to Salt Lake City | 155 | 92.3% | -1.0 min | 0.0% |
| BOI–SFO | Boise to San Francisco | 130 | 79.2% | 2.4 min | 0.0% |
| BOI–LAX | Boise to Los Angeles | 123 | 94.3% | -8.3 min | 0.0% |
| BOI–LAS | Boise to Las Vegas | 121 | 82.6% | 1.2 min | 0.0% |
| BOI–PDX | Boise to Portland | 119 | 95.8% | -3.3 min | 0.8% |
| BOI–ORD | Boise to Chicago | 92 | 84.8% | 13.4 min | 0.0% |
| BOI–SAN | Boise to San Diego | 91 | 84.6% | -0.7 min | 0.0% |
| BOI–MSP | Boise to Minneapolis | 62 | 96.8% | -8.9 min | 0.0% |
| BOI–DFW | Boise to Dallas/Fort Worth | 60 | 86.7% | -6.4 min | 1.7% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left BOI on time in October 2025?
87.0% of 2,008 scheduled domestic departures left less than 15 minutes late, and 85.7% reached their destination on time. The national figures that month were 80.0% and 79.1%.
How does that compare with a year earlier?
In October 2024, 90.1% of 1,991 departures left on time and 0.1% were cancelled, against 87.0% and 0.2% in October 2025.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for October 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for BOI · methodology · corrections.