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Airport Reliability

BOI · Boise

Boise Airport

85%
Departures within 15 minutes
7 min
Average departure delay
83%
Arrivals within 15 minutes
0.6%
Departures cancelled

Based on 29,235 departures and 29,240 arrivals. Data through May 2026.

What the data says

Morning flights do better here.

Departures from BOI departing between 3–6 AM arrived on time 95% of the time, versus 71% between 9 PM–12 AM.

Friday is doing you no favors.

Departures from BOI arrived on time 89% of the time on Saturdays. On Fridays: 81%.

When BOI gets messy

On-time by departure window
  • 3–6 AM95%(1787 flights)
  • 6–9 AM92%(7206 flights)
  • 9 AM–12 PM84%(4292 flights)
  • 12–3 PM83%(6846 flights)
  • 3–6 PM79%(4483 flights)
  • 6–9 PM77%(3732 flights)
  • 9 PM–12 AM71%(648 flights)
On-time by weekday
  • Mon84%(4304 flights)
  • Tue87%(4007 flights)
  • Wed86%(3989 flights)
  • Thu83%(4281 flights)
  • Fri81%(4273 flights)
  • Sat89%(3712 flights)
  • Sun83%(4428 flights)
On-time trend by month
81%
May

Jun 82% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202582%2493
July 202582%2561
August 202584%2456
September 202585%2354
October 202587%2470
November 202584%2372
December 202583%2501
January 202685%2327
February 202689%2147
March 202687%2475
April 202685%2428
May 202681%2410

Airlines departing BOI

Busiest routes from BOI

Based on 29,235 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.