According to PlainFlights' airport traffic ranking (BTS On-Time Performance total flights), Portland, OR (PDX) ranks #32 of 382 tracked US airports by total flights (most flights = #1). Portland, OR posts above-median on-time performance among the 382 tracked U.S. airports, as a high-volume U.S. airport.
Compare PDX to another hub, filter routes, or browse airline stats without leaving this profile.
PDX on-time rate vs. the national average
Ahead of the U.S. average across all 382 tracked airports.
Delay Cause Breakdown
Top delay cause: Carrier.
Total delay minutes: 3,008,123.
Late Aircraft36.9% (1,110,880 min)
Carrier38.4% (1,153,915 min)
NAS (National Aviation System)20.2% (607,243 min)
Weather4.3% (129,084 min)
Security0.2% (7,001 min)
PDX - seasonal on-time pattern
Best: October (94.4%) · worst: June (91%)
PDX - on-time rate by year
2020–2025, year-over-year trend.
PDX - taxi-out and taxi-in (monthly)
Average taxi-out 15.5 min · taxi-in 5.1 min over the last 24 reported months (U.S. airport mean taxi-out ≈ 16.4 min).
PDX's average taxi-out (15.5 min) sits near the recent U.S. airport mean (~16.4 min). Month-to-month, it swings from 14.0 min (April 2024) to 18.4 min (September 2025).
Two PlainFlights-derived comparison paths for Portland, OR, both outside Oregon so the neighborhoods are not same-state geography. Axes stay disjoint: volume peers exclude the on-time peer set. Same-state compare stays below.
The standout signal at Portland, OR is traffic scale: 661,488 BTS flights (2020–2025) place it #32 of 382 by book size. That busy-book footprint sits beside a 84.4% on-time rate (5.4 pts above the 79% national flight-weighted average), 103,008 delayed departures, and 5,511 cancellations (0.83% of the book).
Delay minutes concentrate in Carrier (36.9% late-aircraft, 38.4% carrier, 20.2% NAS, 4.3% weather, 0.2% security). As a busy airport, that mix matters more for connection planning than for a thin schedule.
On the multi-year calendar, PDX is strongest in October (94.4% on-time) and weakest in June (91%), a 3.4-point swing. Volume peaks in August (~10,068 flights/month). The busiest connecting route is to SEA (Seattle) at 87.7% on-time. Field definitions: on-time performance explained.
Portland, OR vs. the national on-time distribution
On-time rate among all 382 tracked U.S. airports
84.4%Top 39%higher than 61% of 382 airports
Portland, OR
60%95%
U.S. airports by on-time rate, bucketed by value
Each bar is a band; taller bars hold more airports. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data (2020–2025).
Statistics reflect cumulative performance across all available reporting periods. On-time rates exclude cancelled and diverted flights.
PDX's on-time book is mid-pack; month and delay-cause mix move more than the headline rate.
Check the busiest route from PDX before you book a connection. See top routes →
Travel in October rather than June if your dates are flexible. Seasonal patterns →
Gate-to-wheels taxi-out averages 15.5 min here; check the monthly series before a tight connection. Taxi times →
On-time rate reflects the BTS historical average across all reporting carriers at this airport, not any single flight or airline.
Frequently Asked Questions
What is Portland, OR's on-time rate?
Portland, OR (PDX) has a 84.4% on-time rate across 661,488 BTS-tracked flights (2020-2025), 5.4 pts above the 79% national flight-weighted average; that places it in roughly the above-median on-time performance.
How does PDX rank among U.S. airports by traffic volume?
Portland, OR ranks #32 of 382 tracked US airports by total BTS flights (most flights = #1), making it a high-volume U.S. airport.
What's the most common cause of delays at Portland, OR?
Carrier is the leading delay cause at PDX, accounting for 38.4% of delay minutes. The full breakdown: 36.9% late-aircraft, 38.4% carrier, 20.2% NAS/air-traffic-control, 4.3% weather, and 0.2% security.
When is the best time to fly through Portland, OR?
October is historically PDX's strongest month at 94.4% on-time, while June is the weakest at 91%, a 3.4-point swing across the BTS historical record.
Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights