On-Time Report

Airports › Portland (PWM) › January 2025

Airport month · January 2025

Portland International Jetport in January 2025

81.1%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 January 2025, reporting carriers scheduled 562 domestic departures from Portland International Jetport (PWM). 81.1% left less than 15 minutes late and 77.0% reached their destination on time; 4.3% were cancelled.

Nationally that month, 79.3% of flights departed on time and 78.6% arrived on time, so PWM departures were 1.8 points above the national departure figure.

A year earlier, in January 2024, the airport had 599 departures with 74.6% leaving on time: a change of +6.5 points, with flights down 6%.

Flights arriving at PWM that month were on time 75.5% of the time (559 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 35%, extreme weather 28% and late-arriving aircraft 24%.

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

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

MeasureJan 2025Jan 2024PWM, 12 months to Jul 2026All reported flights, Jan 2025
Departed on time81.1%74.6%80.0%79.3%
Arrived on time77.0%72.8%78.2%78.6%
Cancelled4.3%7.0%2.6%3.0%
Average departure delay (late minutes only)20.8 min26.5 min17.2 min14.0 min
Scheduled departures a day19203017,992
Scheduled departures56259910,925539,747

Airlines that month

Reporting carrierFlightsShareOn timeAvg arrival delayCancelled
OH PSA Airlines14325%67.8%37.3 min11.2%
YX Republic Airline11320%81.4%-9.5 min2.7%
WN Southwest Airlines9717%84.5%-0.9 min2.1%
OO SkyWest Airlines6612%74.2%5.7 min0.0%
AA American Airlines407%70.0%23.9 min5.0%
UA United Airlines387%89.5%-6.0 min0.0%
DL Delta Air Lines316%83.9%-6.3 min3.2%
F9 Frontier Airlines214%71.4%13.8 min0.0%
B6 JetBlue Airways132%76.9%-1.2 min0.0%

Busiest routes that month

RouteCitiesFlightsOn timeAvg arrival delayCancelled
PWM–DCAPortland to Washington12070.8%26.6 min11.7%
PWM–BWIPortland to Baltimore9784.5%-0.9 min2.1%
PWM–EWRPortland to Newark6889.7%-16.4 min1.5%
PWM–LGAPortland to New York5771.9%3.9 min1.8%
PWM–ORDPortland to Chicago3881.6%-1.7 min0.0%
PWM–DTWPortland to Detroit3568.6%11.2 min0.0%
PWM–PHLPortland to Philadelphia3461.8%79.2 min8.8%
PWM–CLTPortland to Charlotte3268.8%8.3 min3.1%
PWM–ATLPortland to Atlanta3183.9%-6.3 min3.2%
PWM–MCOPortland to Orlando2572.0%8.2 min0.0%
PWM–IADPortland to Washington1392.3%-14.3 min7.7%
PWM–TPAPortland to Tampa977.8%7.6 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), January 2025.

Delay causes

BTS cause categoryShare of delay minutesNational, Jan 2025Minutes
Air carrier34.9%36.2%4,018
Late-arriving aircraft23.9%34.7%2,755
National Aviation System12.9%19.9%1,490
Extreme weather28.2%9.1%3,249
Security0.1%0.2%14
11,526 delay minutes on 104 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.
← December 2024February 2025 →

Questions and answers

How many flights left PWM on time in January 2025?

81.1% of 562 scheduled domestic departures left less than 15 minutes late, and 77.0% reached their destination on time. The national figures that month were 79.3% and 78.6%.

How does that compare with a year earlier?

In January 2024, 74.6% of 599 departures left on time and 7.0% were cancelled, against 81.1% and 4.3% in January 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for January 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.