Portland International in June 2025

78.8%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 June 2025, reporting carriers scheduled 5,640 domestic departures from Portland International (PDX). 78.8% left less than 15 minutes late and 76.8% reached their destination on time; 0.6% were cancelled.

Nationally that month, 71.4% of flights departed on time and 70.3% arrived on time, so PDX departures were 7.4 points above the national departure figure.

A year earlier, in June 2024, the airport had 5,268 departures with 77.6% leaving on time: a change of +1.2 points, with flights up 7%.

Flights arriving at PDX that month were on time 74.2% of the time (5,644 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 46%, air carrier 31% and national aviation system 23%.

On time 76.8%
Arrived 15+ minutes late 22.3%
Cancelled 0.6%
Diverted 0.2%

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

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

Measure	Jun 2025	Jun 2024	PDX, 12 months to Jul 2026	All reported flights, Jun 2025
Departed on time	78.8%	77.6%	82.7%	71.4%
Arrived on time	76.8%	79.6%	82.0%	70.3%
Cancelled	0.6%	0.6%	0.7%	1.6%
Average departure delay (late minutes only)	13.5 min	14.9 min	11.6 min	22.1 min
Scheduled departures a day	188	176	173	20,386
Scheduled departures	5,640	5,268	63,282	611,575

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
AS Alaska Airlines	1,677	30%	77.6%	5.5 min	0.6%
OO SkyWest Airlines	940	17%	79.6%	6.7 min	0.2%
WN Southwest Airlines	880	16%	71.3%	10.7 min	0.2%
DL Delta Air Lines	702	12%	85.8%	-2.3 min	1.1%
UA United Airlines	612	11%	82.0%	0.7 min	0.8%
AA American Airlines	425	8%	67.3%	18.6 min	0.9%
F9 Frontier Airlines	137	2%	67.2%	15.0 min	2.9%
G4 Allegiant Air	101	2%	68.3%	24.0 min	0.0%
HA Hawaiian Airlines	76	1%	51.3%	40.1 min	0.0%
NK Spirit Airlines	60	1%	78.3%	3.5 min	1.7%
B6 JetBlue Airways	30	1%	63.3%	6.8 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
PDX–DEN	Portland to Denver	443	68.6%	11.9 min	0.5%
PDX–SEA	Portland to Seattle	403	75.2%	7.8 min	0.2%
PDX–LAX	Portland to Los Angeles	402	82.3%	1.7 min	2.2%
PDX–PHX	Portland to Phoenix	316	75.0%	10.4 min	0.9%
PDX–SFO	Portland to San Francisco	303	86.1%	-1.3 min	0.0%
PDX–LAS	Portland to Las Vegas	292	83.9%	2.9 min	0.3%
PDX–ORD	Portland to Chicago	289	71.6%	11.5 min	0.7%
PDX–SLC	Portland to Salt Lake City	232	85.8%	3.0 min	0.4%
PDX–DFW	Portland to Dallas/Fort Worth	225	67.6%	15.0 min	0.9%
PDX–SMF	Portland to Sacramento	197	76.6%	10.8 min	0.5%
PDX–ATL	Portland to Atlanta	167	75.4%	5.6 min	1.2%
PDX–SAN	Portland to San Diego	165	81.8%	4.1 min	0.0%

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), June 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Jun 2025	Minutes
Air carrier	30.6%	31.6%	21,685
Late-arriving aircraft	45.7%	40.6%	32,362
National Aviation System	22.8%	20.9%	16,136
Extreme weather	0.7%	6.9%	467
Security	0.3%	0.2%	198

70,848 delay minutes on 1,258 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 June 2025?

78.8% of 5,640 scheduled domestic departures left less than 15 minutes late, and 76.8% reached their destination on time. The national figures that month were 71.4% and 70.3%.

How does that compare with a year earlier?

In June 2024, 77.6% of 5,268 departures left on time and 0.6% were cancelled, against 78.8% and 0.6% in June 2025.

Provenance

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