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Airport Reliability

PDX · Portland

Portland International Airport

85%
Departures within 15 minutes
7 min
Average departure delay
83%
Arrivals within 15 minutes
0.8%
Departures cancelled

Based on 75,790 departures and 75,790 arrivals. Data through May 2026.

What the data says

Morning flights do better here.

Departures from PDX departing between 3–6 AM arrived on time 95% of the time, versus 76% between 6–9 PM.

Saturday comes out ahead.

A small edge: 87% on time on Saturdays against 82% on Thursdays.

When PDX gets messy

On-time by departure window
  • 12–3 AM89%(382 flights)
  • 3–6 AM95%(3080 flights)
  • 6–9 AM88%(17197 flights)
  • 9 AM–12 PM84%(15639 flights)
  • 12–3 PM83%(13989 flights)
  • 3–6 PM80%(11661 flights)
  • 6–9 PM76%(4777 flights)
  • 9 PM–12 AM83%(8304 flights)
On-time by weekday
  • Mon84%(11270 flights)
  • Tue85%(10301 flights)
  • Wed84%(10287 flights)
  • Thu82%(11026 flights)
  • Fri83%(11203 flights)
  • Sat87%(9644 flights)
  • Sun84%(11298 flights)
On-time trend by month
85%
May

Jun 80% → May 85% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202580%6954
July 202578%7191
August 202583%7028
September 202585%6440
October 202583%6515
November 202586%5922
December 202580%6137
January 202687%5292
February 202688%4868
March 202688%6021
April 202688%6092
May 202685%6569

Airlines departing PDX

Busiest routes from PDX

Based on 75,790 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.