On-Time Report

Airports › Portland (PDX) › March 2025

Airport month · March 2025

Portland International in March 2025

87.5%departed on time

BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.

In March 2025, reporting carriers scheduled 4,760 domestic departures from Portland International (PDX). 87.5% left less than 15 minutes late and 85.6% reached their destination on time; 0.3% were cancelled.

Nationally that month, 79.9% of flights departed on time and 79.3% arrived on time, so PDX departures were 7.6 points above the national departure figure.

A year earlier, in March 2024, the airport had 4,671 departures with 84.8% leaving on time: a change of +2.7 points, with flights up 2%.

Flights arriving at PDX that month were on time 84.1% of the time (4,759 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 37%, air carrier 35% and national aviation system 26%.

Every scheduled departure from PDX in March 2025, judged by arrival at the destination.

March 2025 against a year earlier, the airport's year and the nation

MeasureMar 2025Mar 2024PDX, 12 months to Jul 2026All reported flights, Mar 2025
Departed on time87.5%84.8%82.7%79.9%
Arrived on time85.6%82.8%82.0%79.3%
Cancelled0.3%0.5%0.7%1.2%
Average departure delay (late minutes only)8.8 min10.3 min11.6 min14.9 min
Scheduled departures a day15915617320,029
Scheduled departures4,7604,67163,282600,872

Airlines that month

Reporting carrierFlightsShareOn timeAvg arrival delayCancelled
AS Alaska Airlines1,54532%83.0%-0.2 min0.6%
OO SkyWest Airlines90819%85.6%2.0 min0.1%
WN Southwest Airlines69415%85.4%1.4 min0.1%
DL Delta Air Lines54211%92.3%-7.9 min0.0%
UA United Airlines48210%88.6%-5.0 min0.2%
AA American Airlines3347%85.3%3.9 min0.3%
F9 Frontier Airlines992%85.9%0.4 min1.0%
NK Spirit Airlines671%83.6%-2.0 min0.0%
HA Hawaiian Airlines621%75.8%16.6 min0.0%
G4 Allegiant Air271%85.2%-5.9 min0.0%

Busiest routes that month

RouteCitiesFlightsOn timeAvg arrival delayCancelled
PDX–SEAPortland to Seattle41084.6%-0.7 min0.0%
PDX–PHXPortland to Phoenix40984.6%3.6 min0.2%
PDX–LAXPortland to Los Angeles38787.6%-4.3 min0.3%
PDX–DENPortland to Denver32791.1%-6.1 min0.3%
PDX–LASPortland to Las Vegas32783.5%3.3 min0.3%
PDX–SFOPortland to San Francisco29075.5%9.9 min0.3%
PDX–SLCPortland to Salt Lake City20289.6%-4.5 min0.0%
PDX–DFWPortland to Dallas/Fort Worth18077.2%12.3 min0.6%
PDX–SMFPortland to Sacramento16286.4%3.7 min0.0%
PDX–SJCPortland to San Jose15189.4%-1.8 min0.0%
PDX–SANPortland to San Diego12678.6%1.8 min1.6%
PDX–ORDPortland to Chicago12387.8%-5.7 min0.0%

By scheduled departure hour

On-time share:under 62%6270768288% and over
Share of departures that left less than 15 minutes late, by scheduled hour (local time), March 2025.

Delay causes

BTS cause categoryShare of delay minutesNational, Mar 2025Minutes
Air carrier34.6%33.0%13,331
Late-arriving aircraft36.6%39.2%14,083
National Aviation System25.5%21.9%9,818
Extreme weather3.3%5.9%1,272
Security0.0%0.1%14
38,518 delay minutes on 660 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.
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Questions and answers

How many flights left PDX on time in March 2025?

87.5% of 4,760 scheduled domestic departures left less than 15 minutes late, and 85.6% reached their destination on time. The national figures that month were 79.9% and 79.3%.

How does that compare with a year earlier?

In March 2024, 84.8% of 4,671 departures left on time and 0.5% were cancelled, against 87.5% and 0.3% in March 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for March 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for PDX · methodology · corrections.