On-Time Report

Airports › Portland (PWM) › July 2025

Airport month · July 2025

Portland International Jetport in July 2025

67.1%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 July 2025, reporting carriers scheduled 1,275 domestic departures from Portland International Jetport (PWM). 67.1% left less than 15 minutes late and 63.8% reached their destination on time; 6.1% were cancelled.

Nationally that month, 69.7% of flights departed on time and 69.0% arrived on time, so PWM departures were 2.6 points below the national departure figure.

A year earlier, in July 2024, the airport had 1,363 departures with 73.3% leaving on time: a change of −6.2 points, with flights down 6%.

Flights arriving at PWM that month were on time 62.9% of the time (1,275 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 32%, national aviation system 27% and air carrier 26%.

Every scheduled departure from PWM in July 2025, judged by arrival at the destination.

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

MeasureJul 2025Jul 2024PWM, 12 months to Jul 2026All reported flights, Jul 2025
Departed on time67.1%73.3%80.0%69.7%
Arrived on time63.8%71.2%78.2%69.0%
Cancelled6.1%3.4%2.6%2.5%
Average departure delay (late minutes only)31.0 min22.0 min17.2 min24.3 min
Scheduled departures a day43453021,048
Scheduled departures1,2751,36310,925631,428

Airlines that month

Reporting carrierFlightsShareOn timeAvg arrival delayCancelled
YX Republic Airline40031%68.8%14.5 min9.3%
AA American Airlines24920%59.0%34.5 min4.8%
WN Southwest Airlines18515%55.1%36.0 min3.2%
DL Delta Air Lines17814%68.0%25.4 min1.1%
UA United Airlines13010%61.5%35.5 min3.8%
B6 JetBlue Airways615%57.4%21.3 min19.7%
OH PSA Airlines514%80.4%7.4 min5.9%
MQ Envoy Air91%66.7%0.8 min0.0%
OO SkyWest Airlines81%87.5%1.3 min0.0%
F9 Frontier Airlines40%0.0%75.0 min25.0%

Busiest routes that month

RouteCitiesFlightsOn timeAvg arrival delayCancelled
PWM–ORDPortland to Chicago14767.3%28.8 min1.4%
PWM–BWIPortland to Baltimore12363.4%31.6 min2.4%
PWM–EWRPortland to Newark12367.5%19.7 min12.2%
PWM–IADPortland to Washington12371.5%6.4 min9.8%
PWM–PHLPortland to Philadelphia11265.2%30.1 min4.5%
PWM–CLTPortland to Charlotte9469.1%6.0 min3.2%
PWM–ATLPortland to Atlanta9262.0%29.2 min2.2%
PWM–DCAPortland to Washington8861.4%44.5 min9.1%
PWM–LGAPortland to New York8163.0%19.8 min13.6%
PWM–JFKPortland to New York6157.4%21.3 min19.7%
PWM–DTWPortland to Detroit5862.1%33.5 min0.0%
PWM–DFWPortland to Dallas/Fort Worth3756.8%38.0 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), July 2025.

Delay causes

BTS cause categoryShare of delay minutesNational, Jul 2025Minutes
Air carrier25.9%31.1%9,879
Late-arriving aircraft32.4%40.8%12,378
National Aviation System26.5%20.7%10,105
Extreme weather15.3%7.3%5,832
Security0.0%0.1%0
38,194 delay minutes on 371 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.
← June 2025August 2025 →

Questions and answers

How many flights left PWM on time in July 2025?

67.1% of 1,275 scheduled domestic departures left less than 15 minutes late, and 63.8% reached their destination on time. The national figures that month were 69.7% and 69.0%.

How does that compare with a year earlier?

In July 2024, 73.3% of 1,363 departures left on time and 3.4% were cancelled, against 67.1% and 6.1% in July 2025.

Provenance

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