Airports › Boise (BOI) › January 2025
Airport month · January 2025
Boise Air Terminal in January 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 January 2025, reporting carriers scheduled 1,839 domestic departures from Boise Air Terminal (BOI). 86.7% left less than 15 minutes late and 85.6% reached their destination on time; 0.5% were cancelled.
Nationally that month, 79.3% of flights departed on time and 78.6% arrived on time, so BOI departures were 7.4 points above the national departure figure.
A year earlier, in January 2024, the airport had 1,597 departures with 79.4% leaving on time: a change of +7.3 points, with flights up 15%.
Flights arriving at BOI that month were on time 82.0% of the time (1,840 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 34%, late-arriving aircraft 33% and national aviation system 28%.
- On time 85.6%
- Arrived 15+ minutes late 13.8%
- Cancelled 0.5%
- Diverted 0.2%
January 2025 against a year earlier, the airport's year and the nation
| Measure | Jan 2025 | Jan 2024 | BOI, 12 months to Jul 2026 | All reported flights, Jan 2025 |
|---|---|---|---|---|
| Departed on time | 86.7% | 79.4% | 83.9% | 79.3% |
| Arrived on time | 85.6% | 73.2% | 82.9% | 78.6% |
| Cancelled | 0.5% | 1.7% | 0.5% | 3.0% |
| Average departure delay (late minutes only) | 8.1 min | 15.9 min | 12.2 min | 14.0 min |
| Scheduled departures a day | 61 | 53 | 65 | 17,992 |
| Scheduled departures | 1,839 | 1,597 | 23,701 | 539,747 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| OO SkyWest Airlines | 917 | 50% | 87.2% | -4.4 min | 0.2% |
| WN Southwest Airlines | 414 | 23% | 89.6% | -6.7 min | 0.0% |
| DL Delta Air Lines | 182 | 10% | 81.9% | -1.9 min | 1.6% |
| UA United Airlines | 113 | 6% | 83.2% | -4.0 min | 0.9% |
| AA American Airlines | 76 | 4% | 72.4% | 5.7 min | 3.9% |
| AS Alaska Airlines | 73 | 4% | 72.6% | -0.2 min | 0.0% |
| G4 Allegiant Air | 39 | 2% | 76.9% | 11.5 min | 0.0% |
| NK Spirit Airlines | 18 | 1% | 88.9% | -3.3 min | 0.0% |
| MQ Envoy Air | 7 | 0% | 85.7% | -2.7 min | 0.0% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| BOI–SEA | Boise to Seattle | 310 | 81.3% | -0.3 min | 0.3% |
| BOI–DEN | Boise to Denver | 246 | 82.5% | 1.7 min | 0.0% |
| BOI–PHX | Boise to Phoenix | 170 | 90.6% | -5.8 min | 0.0% |
| BOI–LAS | Boise to Las Vegas | 133 | 79.7% | 6.7 min | 0.0% |
| BOI–LAX | Boise to Los Angeles | 130 | 97.7% | -17.0 min | 0.0% |
| BOI–SFO | Boise to San Francisco | 129 | 90.7% | -19.1 min | 0.8% |
| BOI–SLC | Boise to Salt Lake City | 127 | 86.6% | -5.5 min | 0.8% |
| BOI–PDX | Boise to Portland | 103 | 86.4% | 2.6 min | 0.0% |
| BOI–SMF | Boise to Sacramento | 75 | 88.0% | -4.3 min | 0.0% |
| BOI–DFW | Boise to Dallas/Fort Worth | 62 | 67.7% | 11.0 min | 4.8% |
| BOI–OAK | Boise to Oakland | 60 | 86.7% | -6.8 min | 0.0% |
| BOI–MSP | Boise to Minneapolis | 55 | 80.0% | 7.3 min | 0.0% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left BOI on time in January 2025?
86.7% of 1,839 scheduled domestic departures left less than 15 minutes late, and 85.6% reached their destination on time. The national figures that month were 79.3% and 78.6%.
How does that compare with a year earlier?
In January 2024, 79.4% of 1,597 departures left on time and 1.7% were cancelled, against 86.7% and 0.5% in January 2025.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for January 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.