Route Reliability
San Francisco → Boise
SFO–BOI · 522 miles · San Francisco International Airport to Boise Airport
- 79%
- Arrive within 15 minutes
- 6 min
- Average arrival delay
- 0.3%
- Cancelled
- 1,825
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.United Airlines80%1,466 flights
- 2.Alaska Airlines76%359 flights
What the data says
Morning-you made the right choice.
SFO–BOI flights departing between 6–9 AM arrived on time 93% of the time, versus 73% between 3–6 PM.
Skip Monday if you can.
SFO–BOI flights arrived on time 83% of the time on Saturdays. On Mondays: 72%.
United Airlines has a slight edge here.
United Airlines arrived on time 80% of the time on this route; Alaska Airlines managed 76%.
It basically never cancels.
Out of 1,825 scheduled flights, only 0.3% were cancelled.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon72%(269 flights)
- Tue82%(255 flights)
- Wed81%(259 flights)
- Thu77%(264 flights)
- Fri77%(268 flights)
- Sat83%(243 flights)
- Sun81%(259 flights)
- 6–9 AM93%(183 flights)
- 9 AM–12 PM84%(176 flights)
- 12–3 PM78%(476 flights)
- 3–6 PM73%(334 flights)
- 6–9 PM75%(571 flights)
- 9 PM–12 AM91%(77 flights)
Jun 88% → May 62% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 88% | 148 |
| July 2025 | 75% | 145 |
| August 2025 | 74% | 144 |
| September 2025 | 82% | 143 |
| October 2025 | 81% | 155 |
| November 2025 | 86% | 145 |
| December 2025 | 69% | 150 |
| January 2026 | 81% | 151 |
| February 2026 | 82% | 131 |
| March 2026 | 89% | 178 |
| April 2026 | 79% | 162 |
| May 2026 | 62% | 165 |
Same trip, other airports
Keep nerding
Based on 1,825 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.