Route Reliability
Ontario → Boise
ONT–BOI · 660 miles · Ontario International Airport to Boise Airport
86
Pretty Reliable
WanderNerd Reliability Score
- 83%
- Arrive within 15 minutes
- 0 min
- Average arrival delay
- 1.4%
- Cancelled
- 145
- Flights in the data
Data through May 2026.
Alaska Airlines is the only airline in this data on this route, arriving on time 83% of the time across 145 flights. No comparison to make.
What the data says
The 12–3 PM departure wins.
ONT–BOI flights departing between 12–3 PM arrived on time 91% of the time, versus 82% between 6–9 PM.
Friday is doing you no favors.
ONT–BOI flights arrived on time 95% of the time on Sundays and just 67% on Fridays. That gap is worth planning around.
Flights on this route
The breakdown
- Mon84%(19 flights)
- Tue95%(20 flights)
- Wed80%(20 flights)
- Thu76%(21 flights)
- Fri67%(21 flights)
- Sat86%(21 flights)
- Sun95%(21 flights)
- 9 AM–12 PM—(2 flights)
- 12–3 PM91%(21 flights)
- 6–9 PM82%(120 flights)
97%
May
Jan 68% → May 97% on time
| Month | On-time percentage | Flights |
|---|---|---|
| January 2026 | 68% | 25 |
| February 2026 | 96% | 27 |
| March 2026 | 77% | 30 |
| April 2026 | 77% | 30 |
| May 2026 | 97% | 31 |
Same trip, other airports
Keep nerding
Based on 145 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.