Airports › Boise (BOI) › June 2025
Airport month · June 2025
Boise Air Terminal in June 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 June 2025, reporting carriers scheduled 2,074 domestic departures from Boise Air Terminal (BOI). 82.4% left less than 15 minutes late and 81.1% reached their destination on time; 0.6% were cancelled.
Nationally that month, 71.4% of flights departed on time and 70.3% arrived on time, so BOI departures were 11.0 points above the national departure figure.
A year earlier, in June 2024, the airport had 2,063 departures with 82.1% leaving on time: a change of +0.3 points, with flights up 1%.
Flights arriving at BOI that month were on time 76.4% of the time (2,073 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 37%, air carrier 35% and national aviation system 25%.
- On time 81.1%
- Arrived 15+ minutes late 17.9%
- Cancelled 0.6%
- Diverted 0.3%
June 2025 against a year earlier, the airport's year and the nation
| Measure | Jun 2025 | Jun 2024 | BOI, 12 months to Jul 2026 | All reported flights, Jun 2025 |
|---|---|---|---|---|
| Departed on time | 82.4% | 82.1% | 83.9% | 71.4% |
| Arrived on time | 81.1% | 81.9% | 82.9% | 70.3% |
| Cancelled | 0.6% | 0.5% | 0.5% | 1.6% |
| Average departure delay (late minutes only) | 11.8 min | 12.8 min | 12.2 min | 22.1 min |
| Scheduled departures a day | 69 | 69 | 65 | 20,386 |
| Scheduled departures | 2,074 | 2,063 | 23,701 | 611,575 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| OO SkyWest Airlines | 897 | 43% | 86.3% | -1.5 min | 0.2% |
| WN Southwest Airlines | 481 | 23% | 78.4% | 4.8 min | 0.8% |
| DL Delta Air Lines | 262 | 13% | 84.0% | 4.7 min | 1.5% |
| UA United Airlines | 180 | 9% | 67.8% | 14.7 min | 0.0% |
| AS Alaska Airlines | 98 | 5% | 80.6% | 1.3 min | 0.0% |
| AA American Airlines | 85 | 4% | 71.8% | 12.4 min | 2.4% |
| MQ Envoy Air | 31 | 1% | 83.9% | 1.0 min | 0.0% |
| G4 Allegiant Air | 22 | 1% | 68.2% | 13.8 min | 0.0% |
| F9 Frontier Airlines | 9 | 0% | 11.1% | 56.9 min | 0.0% |
| NK Spirit Airlines | 9 | 0% | 88.9% | -4.2 min | 0.0% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| BOI–SEA | Boise to Seattle | 339 | 82.6% | -1.3 min | 0.3% |
| BOI–DEN | Boise to Denver | 254 | 69.3% | 12.4 min | 0.4% |
| BOI–PHX | Boise to Phoenix | 151 | 80.8% | 7.2 min | 0.7% |
| BOI–SLC | Boise to Salt Lake City | 147 | 91.8% | -5.6 min | 1.4% |
| BOI–LAS | Boise to Las Vegas | 125 | 83.2% | 1.7 min | 0.8% |
| BOI–SFO | Boise to San Francisco | 121 | 83.5% | 4.4 min | 0.0% |
| BOI–LAX | Boise to Los Angeles | 120 | 96.7% | -14.4 min | 0.0% |
| BOI–PDX | Boise to Portland | 98 | 85.7% | 0.5 min | 0.0% |
| BOI–SAN | Boise to San Diego | 90 | 83.3% | 0.4 min | 1.1% |
| BOI–DFW | Boise to Dallas/Fort Worth | 86 | 72.1% | 12.3 min | 2.3% |
| BOI–ORD | Boise to Chicago | 86 | 82.6% | 1.9 min | 0.0% |
| BOI–MSP | Boise to Minneapolis | 83 | 81.9% | 6.8 min | 1.2% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left BOI on time in June 2025?
82.4% of 2,074 scheduled domestic departures left less than 15 minutes late, and 81.1% reached their destination on time. The national figures that month were 71.4% and 70.3%.
How does that compare with a year earlier?
In June 2024, 82.1% of 2,063 departures left on time and 0.5% were cancelled, against 82.4% and 0.6% in June 2025.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for June 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.