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Route Reliability

Boise → Ontario

BOI–ONT · 660 miles · Boise Airport to Ontario International Airport

89
Pretty Reliable
WanderNerd Reliability Score
84%
Arrive within 15 minutes
3 min
Average arrival delay
0.7%
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 84% of the time across 145 flights. No comparison to make.

What the data says

The 12–3 PM departure wins.

BOI–ONT flights departing between 12–3 PM arrived on time 95% of the time, versus 79% between 6–9 PM.

Friday is doing you no favors.

BOI–ONT flights arrived on time 95% of the time on Saturdays and just 76% on Fridays. That gap is worth planning around.

Flights on this route

The breakdown

On-time by weekday
  • Mon79%(19 flights)
  • Tue95%(20 flights)
  • Wed76%(21 flights)
  • Thu76%(21 flights)
  • Fri76%(21 flights)
  • Sat95%(21 flights)
  • Sun91%(21 flights)
On-time by departure window
  • 6–9 AM—(2 flights)
  • 12–3 PM95%(21 flights)
  • 3–6 PM83%(78 flights)
  • 6–9 PM79%(43 flights)
On-time trend by month
90%
May

Jan 68% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
January 202668%25
February 202696%27
March 202684%31
April 202680%30
May 202690%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.