Portland International in October 2023

88.6%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 October 2023, reporting carriers scheduled 5,197 domestic departures from Portland International (PDX). 88.6% left less than 15 minutes late and 87.5% reached their destination on time; 0.3% were cancelled.

Nationally that month, 83.8% of flights departed on time and 84.0% arrived on time, so PDX departures were 4.8 points above the national departure figure.

Flights arriving at PDX that month were on time 85.5% of the time (5,196 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 41%, late-arriving aircraft 39% and national aviation system 17%.

On time 87.5%
Arrived 15+ minutes late 12.1%
Cancelled 0.3%
Diverted 0.1%

Every scheduled departure from PDX in October 2023, judged by arrival at the destination.

October 2023 against a year earlier, the airport's year and the nation

Measure	Oct 2023	Year earlier	PDX, 12 months to Jul 2026	All reported flights, Oct 2023
Departed on time	88.6%	—	82.7%	83.8%
Arrived on time	87.5%	—	82.0%	84.0%
Cancelled	0.3%	—	0.7%	0.4%
Average departure delay (late minutes only)	7.7 min	—	11.6 min	11.0 min
Scheduled departures a day	173	—	173	19,966
Scheduled departures	5,197	—	63,282	598,968

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
AS Alaska Airlines	1,388	27%	88.7%	-1.9 min	0.2%
WN Southwest Airlines	983	19%	85.9%	1.7 min	0.1%
OO SkyWest Airlines	842	16%	87.9%	-0.4 min	0.0%
DL Delta Air Lines	651	13%	93.2%	-6.5 min	0.0%
UA United Airlines	634	12%	92.9%	-7.8 min	0.2%
AA American Airlines	276	5%	84.8%	3.3 min	1.4%
F9 Frontier Airlines	153	3%	68.0%	18.0 min	1.3%
NK Spirit Airlines	115	2%	83.5%	3.5 min	2.6%
HA Hawaiian Airlines	63	1%	66.7%	18.3 min	3.2%
B6 JetBlue Airways	56	1%	60.7%	30.4 min	1.8%
G4 Allegiant Air	36	1%	69.4%	19.9 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
PDX–SEA	Portland to Seattle	624	89.9%	-3.3 min	0.3%
PDX–DEN	Portland to Denver	438	86.3%	-1.0 min	0.2%
PDX–LAX	Portland to Los Angeles	388	87.9%	-0.8 min	0.0%
PDX–LAS	Portland to Las Vegas	356	81.7%	5.0 min	1.1%
PDX–PHX	Portland to Phoenix	319	81.8%	4.2 min	0.0%
PDX–SFO	Portland to San Francisco	269	89.2%	-1.7 min	0.0%
PDX–SJC	Portland to San Jose	232	89.7%	0.6 min	0.4%
PDX–OAK	Portland to Oakland	209	88.5%	-1.1 min	0.0%
PDX–ORD	Portland to Chicago	183	90.2%	-2.9 min	0.0%
PDX–SLC	Portland to Salt Lake City	179	91.6%	-1.6 min	0.0%
PDX–DFW	Portland to Dallas/Fort Worth	175	82.9%	3.8 min	2.3%
PDX–SAN	Portland to San Diego	150	90.7%	-3.3 min	0.0%

By scheduled departure hour

100

On-time share:under 62%6270768288% and over

Share of departures that left less than 15 minutes late, by scheduled hour (local time), October 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Oct 2023	Minutes
Air carrier	40.9%	41.3%	14,469
Late-arriving aircraft	38.8%	40.5%	13,734
National Aviation System	17.2%	14.4%	6,098
Extreme weather	2.7%	3.7%	940
Security	0.5%	0.2%	172

35,413 delay minutes on 628 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 October 2023?

88.6% of 5,197 scheduled domestic departures left less than 15 minutes late, and 87.5% reached their destination on time. The national figures that month were 83.8% and 84.0%.

How does that compare with a year earlier?

October 2022 is outside the 36 months on file, or the airport had too few reported flights that month.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for October 2023; 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.