Portland International in January 2025

86.6%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 4,401 domestic departures from Portland International (PDX). 86.6% left less than 15 minutes late and 86.3% reached their destination on time; 0.9% were cancelled.

Nationally that month, 79.3% of flights departed on time and 78.6% arrived on time, so PDX departures were 7.3 points above the national departure figure.

A year earlier, in January 2024, the airport had 4,275 departures with 70.9% leaving on time: a change of +15.7 points, with flights up 3%.

Flights arriving at PDX that month were on time 83.4% of the time (4,402 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 46%, late-arriving aircraft 35% and national aviation system 16%.

On time 86.3%
Arrived 15+ minutes late 12.4%
Cancelled 0.9%
Diverted 0.4%

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

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

Measure	Jan 2025	Jan 2024	PDX, 12 months to Jul 2026	All reported flights, Jan 2025
Departed on time	86.6%	70.9%	82.7%	79.3%
Arrived on time	86.3%	68.7%	82.0%	78.6%
Cancelled	0.9%	9.2%	0.7%	3.0%
Average departure delay (late minutes only)	9.9 min	18.8 min	11.6 min	14.0 min
Scheduled departures a day	147	143	173	17,992
Scheduled departures	4,401	4,275	63,282	539,747

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
AS Alaska Airlines	1,531	35%	85.2%	-1.6 min	1.0%
OO SkyWest Airlines	764	17%	86.0%	-1.3 min	0.5%
WN Southwest Airlines	623	14%	87.3%	-2.7 min	0.6%
UA United Airlines	479	11%	90.2%	-6.3 min	1.0%
DL Delta Air Lines	474	11%	88.4%	-5.5 min	0.2%
AA American Airlines	273	6%	85.3%	-1.7 min	2.9%
F9 Frontier Airlines	122	3%	78.7%	2.6 min	0.8%
HA Hawaiian Airlines	62	1%	77.4%	49.4 min	1.6%
NK Spirit Airlines	52	1%	88.5%	-11.9 min	0.0%
G4 Allegiant Air	19	0%	84.2%	61.5 min	0.0%
MQ Envoy Air	2	0%	100.0%	-16.0 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
PDX–SEA	Portland to Seattle	401	86.8%	0.7 min	1.0%
PDX–LAX	Portland to Los Angeles	383	88.8%	-6.3 min	0.3%
PDX–PHX	Portland to Phoenix	330	90.0%	-5.5 min	0.6%
PDX–DEN	Portland to Denver	310	83.2%	3.3 min	0.6%
PDX–SFO	Portland to San Francisco	288	88.9%	-7.4 min	0.3%
PDX–LAS	Portland to Las Vegas	277	87.7%	-2.5 min	0.0%
PDX–SLC	Portland to Salt Lake City	187	87.2%	-5.0 min	0.0%
PDX–DFW	Portland to Dallas/Fort Worth	182	76.4%	6.0 min	4.9%
PDX–SJC	Portland to San Jose	137	83.9%	-2.8 min	2.2%
PDX–SNA	Portland to Santa Ana	119	90.8%	-9.1 min	0.8%
PDX–SMF	Portland to Sacramento	118	89.8%	-5.4 min	0.8%
PDX–SAN	Portland to San Diego	117	81.2%	5.2 min	1.7%

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 category	Share of delay minutes	National, Jan 2025	Minutes
Air carrier	46.1%	36.2%	17,123
Late-arriving aircraft	34.7%	34.7%	12,863
National Aviation System	16.4%	19.9%	6,090
Extreme weather	2.6%	9.1%	957
Security	0.2%	0.2%	85

37,118 delay minutes on 547 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.

Questions and answers

How many flights left PDX on time in January 2025?

86.6% of 4,401 scheduled domestic departures left less than 15 minutes late, and 86.3% 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, 70.9% of 4,275 departures left on time and 9.2% were cancelled, against 86.6% and 0.9% 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 PDX · methodology · corrections.