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Route Reliability

Boise → Portland

BOI–PDX · 344 miles · Boise Airport to Portland International Airport

97
Nerd Approved
WanderNerd Reliability Score
91%
Arrive within 15 minutes
2 min early
Average arrival delay
0.6%
Cancelled
1,745
Flights in the data

Data through May 2026.

Alaska Airlines is the only airline in this data on this route, arriving on time 91% of the time across 1,745 flights. No comparison to make.

What the data says

Morning-you made the right choice.

BOI–PDX flights departing between 6–9 AM arrived on time 97% of the time, versus 87% between 3–6 PM.

Friday is doing you no favors.

BOI–PDX flights arrived on time 95% of the time on Mondays. On Fridays: 87%.

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

On-time by weekday
  • Mon95%(260 flights)
  • Tue94%(245 flights)
  • Wed91%(246 flights)
  • Thu90%(256 flights)
  • Fri87%(256 flights)
  • Sat92%(208 flights)
  • Sun89%(263 flights)
On-time by departure window
  • 3–6 AM95%(210 flights)
  • 6–9 AM97%(175 flights)
  • 9 AM–12 PM94%(342 flights)
  • 12–3 PM91%(355 flights)
  • 3–6 PM87%(330 flights)
  • 6–9 PM88%(322 flights)
On-time trend by month
89%
May

Jun 86% → May 89% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202586%147
July 202593%150
August 202589%150
September 202594%145
October 202593%149
November 202591%136
December 202583%151
January 202692%139
February 202695%127
March 202693%148
April 202697%146
May 202689%146

Keep nerding

Based on 1,745 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.