FlightRecord

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

Data through July 2026

Portland International Airport (PDX) runs noticeably smoother than most US airports: 84% of its ~173 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 76 destinations.

Departures on-time
84%
left <15 min late
Avg dep delay
11 min
Arrivals on-time
81%
Cancelled
0.7%
Destinations
76
nonstop
Airlines
12

Plan your departure from PDX

The choices most likely to improve your odds, based on this airport’s historical record.

Best departure time
Around 5 a.m.
95% on-time
Best day to fly
Tuesday
85% on-time
Most reliable airline here
Delta Air Lines
89% on-time from PDX
Cancellation risk
0.7%
below the US average
Check routes from PDX ↓Compare nearby airports ↓

Monthly on-time trend

Monthly departure on-time percentage at PDX50%75%100%August 2024: 83% on-time (5,542 flights)83Aug 2024September 2024: 88% on-time (5,244 flights)88October 2024: 90% on-time (5,258 flights)90November 2024: 89% on-time (4,873 flights)89Nov 2024December 2024: 83% on-time (5,065 flights)83January 2025: 87% on-time (4,401 flights)87February 2025: 85% on-time (3,983 flights)85Feb 2025March 2025: 88% on-time (4,760 flights)88April 2025: 87% on-time (4,763 flights)87May 2025: 87% on-time (5,201 flights)87May 2025June 2025: 79% on-time (5,640 flights)79July 2025: 78% on-time (5,864 flights)78August 2025: 84% on-time (5,685 flights)84Aug 2025September 2025: 87% on-time (5,269 flights)87October 2025: 85% on-time (5,493 flights)85November 2025: 86% on-time (4,976 flights)86Nov 2025December 2025: 79% on-time (5,124 flights)79January 2026: 85% on-time (4,537 flights)85February 2026: 86% on-time (4,182 flights)86Feb 2026March 2026: 84% on-time (5,113 flights)84April 2026: 86% on-time (5,040 flights)86May 2026: 84% on-time (5,535 flights)84May 2026June 2026: 78% on-time (6,024 flights)78July 2026: 79% on-time (6,304 flights)79

Best time of day to depart from PDX

On-time percentage by scheduled departure hour at PDX5 a.m.: 95% on-time (6,655 flights)56 a.m.: 95% on-time (7,075 flights)67 a.m.: 90% on-time (17,558 flights)78 a.m.: 90% on-time (5,710 flights)89 a.m.: 89% on-time (5,277 flights)910 a.m.: 86% on-time (14,161 flights)1011 a.m.: 84% on-time (6,870 flights)1112 p.m.: 83% on-time (4,422 flights)121 p.m.: 79% on-time (7,260 flights)132 p.m.: 83% on-time (11,191 flights)143 p.m.: 77% on-time (4,445 flights)154 p.m.: 77% on-time (3,011 flights)165 p.m.: 79% on-time (11,228 flights)176 p.m.: 75% on-time (3,417 flights)187 p.m.: 79% on-time (5,038 flights)198 p.m.: 75% on-time (2,800 flights)209 p.m.: 77% on-time (5,750 flights)2110 p.m.: 79% on-time (2,748 flights)2211 p.m.: 76% on-time (3,778 flights)23scheduled departure hour

By day of week

DayOn-timeAvg delay
Monday83%12 min
Tuesdaybest85%10 min
Wednesday84%10 min
Thursday81%12 min
Friday81%13 min
Saturday85%10 min
Sunday82%12 min

Next: compare the busiest routes from PDX ↓

Busiest routes from PDX

RouteFlights/12moOn-timeAvg delay
PDX → SEA (Seattle)4,94285%10 min
PDX → LAX (Los Angeles)4,34588%9 min
PDX → DEN (Denver)4,28682%11 min
PDX → PHX (Phoenix)3,75081%14 min
PDX → SFO (San Francisco)3,49475%16 min
PDX → LAS (Las Vegas)2,95682%11 min
PDX → ORD (Chicago)2,80879%16 min
PDX → DFW (Dallas/Fort Worth)2,38078%18 min
PDX → SLC (Salt Lake City)2,37489%8 min
PDX → SMF (Sacramento)1,96683%10 min
PDX → SAN (San Diego)1,77179%11 min
PDX → SJC (San Jose)1,67284%10 min
PDX → ATL (Atlanta)1,55186%9 min
PDX → SNA (Santa Ana)1,55090%5 min
PDX → MSP (Minneapolis)1,54391%7 min
PDX → OAK (Oakland)1,28780%11 min
PDX → IAH (Houston)1,22786%12 min
PDX → ANC (Anchorage)1,20980%10 min
PDX → GEG (Spokane)1,03085%7 min
PDX → BUR (Burbank)99585%9 min
PDX → JFK (New York)91484%11 min
PDX → BOI (Boise)90885%8 min
PDX → HNL (Honolulu)90868%21 min
PDX → EWR (Newark)89981%15 min
PDX → PSP (Palm Springs)73884%9 min
PDX → OGG (Kahului)72890%7 min
PDX → MDW (Chicago)68488%6 min
PDX → BOS (Boston)67176%17 min
PDX → STS (Santa Rosa)64081%11 min
PDX → AUS (Austin)60781%11 min
PDX → FAT (Fresno)58885%11 min
PDX → EUG (Eugene)58291%6 min
PDX → ONT (Ontario)56685%10 min
PDX → CLT (Charlotte)44088%9 min
PDX → MCO (Orlando)39180%11 min
PDX → DTW (Detroit)37981%17 min
PDX → KOA (Kona)36586%7 min
PDX → TUS (Tucson)36582%10 min
PDX → DCA (Washington)36381%9 min
PDX → MCI (Kansas City)34782%9 min
PDX → MIA (Miami)34283%12 min
PDX → BNA (Nashville)31884%8 min
PDX → RNO (Reno)31087%8 min
PDX → IAD (Washington)29191%9 min
PDX → MFR (Medford)27188%9 min
PDX → RDM (Bend/Redmond)26986%9 min
PDX → PHL (Philadelphia)26282%13 min
PDX → LIH (Lihue)25388%5 min
PDX → DAL (Dallas)23063%18 min
PDX → BWI (Baltimore)20082%10 min

Compare airlines departing PDX ↓

Where flights into PDX come from

RouteFlights/12moOn-timeAvg delay
SEA (Seattle) → PDX4,81281%10 min
LAX (Los Angeles) → PDX4,34787%9 min
DEN (Denver) → PDX4,28575%15 min
PHX (Phoenix) → PDX3,74880%13 min
SFO (San Francisco) → PDX3,49381%12 min
LAS (Las Vegas) → PDX2,95679%13 min
ORD (Chicago) → PDX2,80574%18 min
DFW (Dallas/Fort Worth) → PDX2,38067%23 min

Most reliable routes

  1. PDX → MSY93%
  2. PDX → EUG91%
  3. PDX → BLI91%
  4. PDX → MSP91%
  5. PDX → IAD91%

Most delay-prone routes

  1. PDX → DAL63%
  2. PDX → HNL68%
  3. PDX → SFO75%
  4. PDX → BOS76%
  5. PDX → IDA77%

What causes delays at PDX

Share of total delay minutes by cause, as reported by carriers to the US DOT, weighted across routes departing PDX.

  • Late-arriving aircraft37%
  • Airline operations36%
  • National airspace system24%
  • Weather3%

Alternative airports near Portland

Other airports within 120 miles, compared on departure reliability.

AirportDistanceOn-time departuresAvg delay
EUG — Eugene Airport106 mi83%15 min
RDM — Roberts Field116 mi84%14 min

Compare the airport-level record first, then check the exact route you plan to book.

Airline performance at PDX

AirlineOn-time departuresAvg delayFlights
Delta Air Lines89%9 min15,095
SkyWest Airlines87%9 min21,875
United Airlines86%12 min13,922
Alaska Airlines86%9 min44,152
Spirit Airlines80%17 min1,478
Frontier Airlines79%16 min2,669
Allegiant Air79%33 min908
American Airlines79%20 min8,953
Hawaiian Airlines76%23 min1,210
Southwest Airlines76%13 min18,708
JetBlue Airways61%44 min349

Frequently asked questions

How often are flights delayed at PDX?
16% of departures from Portland International Airport left 15+ minutes late between 2024-07 and 2026-07, 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 2026 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

Related guides

Based on 129,368 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.