FlightRecord

Portland International Airport (PDX): Delays & On-Time Performance

Data through May 2026

Portland International Airport (PDX) runs noticeably smoother than most US airports: 84% of its ~171 daily departures leave on time, 6 points above the national average, with an average departure delay of just 11 minutes. 12 airlines fly from Portland, OR to 73 destinations.

Departures on-time
84%
left <15 min late
Avg dep delay
11 min
Arrivals on-time
81%
Cancelled
0.7%
Destinations
73
nonstop
Airlines
12

Monthly on-time trend

Monthly departure on-time percentage at PDX50%75%100%June 2024: 78% on-time (5,268 flights)78Jun 2024July 2024: 79% on-time (5,492 flights)79August 2024: 83% on-time (5,542 flights)83September 2024: 88% on-time (5,244 flights)88Sep 2024October 2024: 90% on-time (5,258 flights)90November 2024: 89% on-time (4,873 flights)89December 2024: 83% on-time (5,065 flights)83Dec 2024January 2025: 87% on-time (4,401 flights)87February 2025: 85% on-time (3,983 flights)85March 2025: 88% on-time (4,760 flights)88Mar 2025April 2025: 87% on-time (4,763 flights)87May 2025: 87% on-time (5,201 flights)87June 2025: 79% on-time (5,640 flights)79Jun 2025July 2025: 78% on-time (5,864 flights)78August 2025: 84% on-time (5,685 flights)84September 2025: 87% on-time (5,269 flights)87Sep 2025October 2025: 85% on-time (5,493 flights)85November 2025: 86% on-time (4,976 flights)86December 2025: 79% on-time (5,124 flights)79Dec 2025January 2026: 85% on-time (4,537 flights)85February 2026: 86% on-time (4,182 flights)86March 2026: 84% on-time (5,113 flights)84Mar 2026April 2026: 86% on-time (5,040 flights)86May 2026: 84% on-time (5,535 flights)84

Best time of day to depart from PDX

On-time percentage by scheduled departure hour at PDX5 a.m.: 95% on-time (6,241 flights)56 a.m.: 95% on-time (6,931 flights)67 a.m.: 91% on-time (16,303 flights)78 a.m.: 90% on-time (5,702 flights)89 a.m.: 89% on-time (5,240 flights)910 a.m.: 86% on-time (12,845 flights)1011 a.m.: 84% on-time (6,536 flights)1112 p.m.: 82% on-time (4,232 flights)121 p.m.: 79% on-time (7,040 flights)132 p.m.: 83% on-time (10,264 flights)143 p.m.: 78% on-time (4,326 flights)154 p.m.: 77% on-time (3,042 flights)165 p.m.: 80% on-time (10,063 flights)176 p.m.: 75% on-time (3,359 flights)187 p.m.: 80% on-time (5,070 flights)198 p.m.: 75% on-time (2,779 flights)209 p.m.: 77% on-time (5,199 flights)2110 p.m.: 80% on-time (2,499 flights)2211 p.m.: 75% on-time (3,604 flights)23scheduled departure hour

Busiest routes from PDX

RouteFlights/12moOn-timeAvg delay
PDX → SEA4,93785%10 min
PDX → LAX4,44788%9 min
PDX → DEN4,29882%11 min
PDX → PHX3,74582%13 min
PDX → SFO3,53077%15 min
PDX → LAS3,02582%11 min
PDX → ORD2,73380%15 min
PDX → DFW2,44178%18 min

Most reliable routes

  1. PDX → MSY93%
  2. PDX → EUG92%
  3. PDX → IAD91%
  4. PDX → MSP91%
  5. PDX → SNA90%

Most delay-prone routes

  1. PDX → DAL69%
  2. PDX → HNL69%
  3. PDX → SFO77%
  4. PDX → BOS77%
  5. PDX → DFW78%

Airline performance at PDX

AirlineOn-time departuresAvg delayFlights
Delta Air Lines89%9 min14,483
SkyWest Airlines87%10 min20,725
United Airlines86%11 min13,193
Alaska Airlines86%8 min40,898
Allegiant Air81%28 min800
Spirit Airlines80%18 min1,701
American Airlines79%19 min8,322
Frontier Airlines78%17 min2,719
Southwest Airlines77%13 min17,868
Hawaiian Airlines77%22 min1,270
JetBlue Airways57%44 min285

Frequently asked questions

How often are flights delayed at PDX?
16% of departures from Portland International Airport left 15+ minutes late between 2024-06 and 2026-05, with an average departure delay of 11 minutes. The national on-time average over the same period was 78%.
What is the best time of day to depart from PDX?
Flights scheduled around 5 a.m. depart on time 95% of the time at PDX, versus 75% around 8 p.m.. Booking before noon is the usual rule of thumb here.
What is the worst month for delays at PDX?
In this dataset, June 2024 was the weakest month at PDX, with 78% of departures on time.
How often are flights cancelled at PDX?
0.7% of scheduled departures from PDX were cancelled in this period, compared with a national rate of 1.6%.

Popular route pages from this airport

Based on 122,308 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.